Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV

L. Adamczyk, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, C. D. Anson, D. Arkhipkin, E. Aschenauer, G. S. Averichev, J. Balewski, A. Banerjee, Z. Barnovska, D. R. Beavis, R. Bellwied, M. J. Betancourt, R. R. Betts, A. Bhasin & 349 others A. K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, W. Borowski, J. Bouchet, A. V. Brandin, S. G. Brovko, E. Bruna, S. Bueltmann, I. Bunzarov, T. P. Burton, J. Butterworth, X. Z. Cai, H. Caines, M. Calderón De La Barca Sánchez, D. Cebra, R. Cendejas, M. C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, L. Chen, J. Cheng, Michael G. Cherney, A. Chikanian, W. Christie, P. Chung, J. Chwastowski, M. J M Codrington, R. Corliss, J. G. Cramer, H. J. Crawford, X. Cui, A. Davila Leyva, L. C. De Silva, R. R. Debbe, T. G. Dedovich, J. Deng, R. Derradi De Souza, S. Dhamija, L. Didenko, F. Ding, A. Dion, P. Djawotho, X. Dong, J. L. Drachenberg, J. E. Draper, C. M. Du, L. E. Dunkelberger, J. C. Dunlop, L. G. Efimov, M. Elnimr, J. Engelage, G. Eppley, L. Eun, O. Evdokimov, R. Fatemi, S. Fazio, J. Fedorisin, R. G. Fersch, P. Filip, E. Finch, Y. Fisyak, C. A. Gagliardi, D. R. Gangadharan, F. Geurts, A. Gibson, S. Gliske, Y. N. Gorbunov, O. G. Grebenyuk, D. Grosnick, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L. X. Han, J. W. Harris, J. P. Hays-Wehle, S. Heppelmann, A. Hirsch, G. W. Hoffmann, D. J. Hofman, S. Horvat, B. Huang, H. Z. Huang, P. Huck, T. J. Humanic, L. Huo, G. Igo, W. W. Jacobs, C. Jena, J. Joseph, E. G. Judd, S. Kabana, K. Kang, J. Kapitan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, A. Kesich, D. Kettler, D. P. Kikola, J. Kiryluk, A. Kisiel, V. Kizka, S. R. Klein, D. D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, W. Korsch, L. Kotchenda, P. Kravtsov, K. Krueger, L. Kumar, M. A C Lamont, J. M. Landgraf, S. Lapointe, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, W. Leight, M. J. Levine, C. Li, L. Li, W. Li, X. Li, X. Li, Y. Li, Z. M. Li, L. M. Lima, M. A. Lisa, F. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, Y. Lu, X. Luo, A. Luszczak, G. L. Ma, Y. G. Ma, D. M M D Madagodagettige Don, D. P. Mahapatra, R. Majka, O. I. Mall, S. Margetis, C. Markert, H. Masui, H. S. Matis, D. McDonald, T. S. McShane, S. Mioduszewski, M. K. Mitrovski, Y. Mohammed, B. Mohanty, M. M. Mondal, B. Morozov, M. G. Munhoz, M. K. Mustafa, M. Naglis, B. K. Nandi, Md Nasim, T. K. Nayak, L. V. Nogach, J. Novak, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E. W. Oldag, R. A N Oliveira, D. Olson, P. Ostrowski, M. Pachr, B. S. Page, S. K. Pal, Y. X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A. M. Poskanzer, C. B. Powell, D. Prindle, C. Pruneau, N. K. Pruthi, M. Przybycien, P. R. Pujahari, J. Putschke, H. Qiu, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, C. K. Riley, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, J. F. Ross, L. Ruan, J. Rusnak, N. R. Sahoo, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, E. Sangaline, A. Sarkar, J. Schambach, R. P. Scharenberg, A. M. Schmah, B. Schmidke, N. Schmitz, T. R. Schuster, J. Seele, Janet E. Seger, P. Seyboth, N. Shah, E. Shahaliev, M. Shao, B. Sharma, M. Sharma, S. S. Shi, Q. Y. Shou, E. P. Sichtermann, R. N. Singaraju, M. J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U. G. Desouza, H. M. Spinka, B. Srivastava, T. D S Stanislaus, S. G. Steadman, J. R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A. A P Suaide, M. C. Suarez, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, D. N. Svirida, T. J M Symons, A. Szanto De Toledo, J. Takahashi, A. H. Tang, Z. Tang, L. H. Tarini, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, D. Tlusty, M. Tokarev, T. A. Trainor, S. Trentalange, R. E. Tribble, P. Tribedy, B. A. Trzeciak, O. D. Tsai, J. Turnau, T. Ullrich, D. G. Underwood, G. Van Buren, G. Van Nieuwenhuizen, J. A. Vanfossen, R. Varma, G. M S Vasconcelos, F. Videbæk, Y. P. Viyogi, S. Vokal, S. A. Voloshin, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, W. Witzke, Y. F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, Y. Yang, P. Yepes, Y. Yi, K. Yip, I. K. Yoo, M. Zawisza, H. Zbroszczyk, J. B. Zhang, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhang, F. Zhao, J. Zhao, C. Zhong, X. Zhu, Y. H. Zhu, Y. Zoulkarneeva

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e +e - decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e +e - invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K +K - and J/ψ→e +e -. Our results suggest a new upper limit of the branching ratio of the η→e +e - of 1.7×10 -5 at the 90% confidence level.

Original languageEnglish
Article number024906
JournalPhysical Review C - Nuclear Physics
Volume86
Issue number2
DOIs
StatePublished - Aug 8 2012

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collisions
decay
electrons
mesons
vector mesons
acceptability
mass spectra
confidence
heavy ions
continuums
cross sections
simulation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., ... Zoulkarneeva, Y. (2012). Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. Physical Review C - Nuclear Physics, 86(2), [024906]. https://doi.org/10.1103/PhysRevC.86.024906

Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. / Adamczyk, L.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Anson, C. D.; Arkhipkin, D.; Aschenauer, E.; Averichev, G. S.; Balewski, J.; Banerjee, A.; Barnovska, Z.; Beavis, D. R.; Bellwied, R.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Bordyuzhin, I. G.; Borowski, W.; Bouchet, J.; Brandin, A. V.; Brovko, S. G.; Bruna, E.; Bueltmann, S.; Bunzarov, I.; Burton, T. P.; Butterworth, J.; Cai, X. Z.; Caines, H.; Calderón De La Barca Sánchez, M.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chaloupka, P.; Chang, Z.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Chen, L.; Cheng, J.; Cherney, Michael G.; Chikanian, A.; Christie, W.; Chung, P.; Chwastowski, J.; Codrington, M. J M; Corliss, R.; Cramer, J. G.; Crawford, H. J.; Cui, X.; Davila Leyva, A.; De Silva, L. C.; Debbe, R. R.; Dedovich, T. G.; Deng, J.; Derradi De Souza, R.; Dhamija, S.; Didenko, L.; Ding, F.; Dion, A.; Djawotho, P.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, C. M.; Dunkelberger, L. E.; Dunlop, J. C.; Efimov, L. G.; Elnimr, M.; Engelage, J.; Eppley, G.; Eun, L.; Evdokimov, O.; Fatemi, R.; Fazio, S.; Fedorisin, J.; Fersch, R. G.; Filip, P.; Finch, E.; Fisyak, Y.; Gagliardi, C. A.; Gangadharan, D. R.; Geurts, F.; Gibson, A.; Gliske, S.; Gorbunov, Y. N.; Grebenyuk, O. G.; Grosnick, D.; Gupta, S.; Guryn, W.; Haag, B.; Hajkova, O.; Hamed, A.; Han, L. X.; Harris, J. W.; Hays-Wehle, J. P.; Heppelmann, S.; Hirsch, A.; Hoffmann, G. W.; Hofman, D. J.; Horvat, S.; Huang, B.; Huang, H. Z.; Huck, P.; Humanic, T. J.; Huo, L.; Igo, G.; Jacobs, W. W.; Jena, C.; Joseph, J.; Judd, E. G.; Kabana, S.; Kang, K.; Kapitan, J.; Kauder, K.; Ke, H. W.; Keane, D.; Kechechyan, A.; Kesich, A.; Kettler, D.; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Kizka, V.; Klein, S. R.; Koetke, D. D.; Kollegger, T.; Konzer, J.; Koralt, I.; Koroleva, L.; Korsch, W.; Kotchenda, L.; Kravtsov, P.; Krueger, K.; Kumar, L.; Lamont, M. A C; Landgraf, J. M.; Lapointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, J. H.; Leight, W.; Levine, M. J.; Li, C.; Li, L.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z. M.; Lima, L. M.; Lisa, M. A.; Liu, F.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Lu, Y.; Luo, X.; Luszczak, A.; Ma, G. L.; Ma, Y. G.; Madagodagettige Don, D. M M D; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; McDonald, D.; McShane, T. S.; Mioduszewski, S.; Mitrovski, M. K.; Mohammed, Y.; Mohanty, B.; Mondal, M. M.; Morozov, B.; Munhoz, M. G.; Mustafa, M. K.; Naglis, M.; Nandi, B. K.; Nasim, Md; Nayak, T. K.; Nogach, L. V.; Novak, J.; Odyniec, G.; Ogawa, A.; Oh, K.; Ohlson, A.; Okorokov, V.; Oldag, E. W.; Oliveira, R. A N; Olson, D.; Ostrowski, P.; Pachr, M.; Page, B. S.; Pal, S. K.; Pan, Y. X.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Pawlik, B.; Pei, H.; Perkins, C.; Peryt, W.; Pile, P.; Planinic, M.; Pluta, J.; Plyku, D.; Poljak, N.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Przybycien, M.; Pujahari, P. R.; Putschke, J.; Qiu, H.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Riley, C. K.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Ross, J. F.; Ruan, L.; Rusnak, J.; Sahoo, N. R.; Sakrejda, I.; Salur, S.; Sandacz, A.; Sandweiss, J.; Sangaline, E.; Sarkar, A.; Schambach, J.; Scharenberg, R. P.; Schmah, A. M.; Schmidke, B.; Schmitz, N.; Schuster, T. R.; Seele, J.; Seger, Janet E.; Seyboth, P.; Shah, N.; Shahaliev, E.; Shao, M.; Sharma, B.; Sharma, M.; Shi, S. S.; Shou, Q. Y.; Sichtermann, E. P.; Singaraju, R. N.; Skoby, M. J.; Smirnov, D.; Smirnov, N.; Solanki, D.; Sorensen, P.; Desouza, U. G.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D S; Steadman, S. G.; Stevens, J. R.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A P; Suarez, M. C.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D. N.; Symons, T. J M; Szanto De Toledo, A.; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Trentalange, S.; Tribble, R. E.; Tribedy, P.; Trzeciak, B. A.; Tsai, O. D.; Turnau, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; Van Nieuwenhuizen, G.; Vanfossen, J. A.; Varma, R.; Vasconcelos, G. M S; Videbæk, F.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Vossen, A.; Wada, M.; Wang, F.; Wang, G.; Wang, H.; Wang, J. S.; Wang, Q.; Wang, X. L.; Wang, Y.; Webb, G.; Webb, J. C.; Westfall, G. D.; Whitten, C.; Wieman, H.; Wissink, S. W.; Witt, R.; Witzke, W.; Wu, Y. F.; Xiao, Z.; Xie, W.; Xin, K.; Xu, H.; Xu, N.; Xu, Q. H.; Xu, W.; Xu, Y.; Xu, Z.; Xue, L.; Yang, Y.; Yang, Y.; Yepes, P.; Yi, Y.; Yip, K.; Yoo, I. K.; Zawisza, M.; Zbroszczyk, H.; Zhang, J. B.; Zhang, S.; Zhang, W. M.; Zhang, X. P.; Zhang, Y.; Zhang, Z. P.; Zhao, F.; Zhao, J.; Zhong, C.; Zhu, X.; Zhu, Y. H.; Zoulkarneeva, Y.

In: Physical Review C - Nuclear Physics, Vol. 86, No. 2, 024906, 08.08.2012.

Research output: Contribution to journalArticle

Adamczyk, L, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Alakhverdyants, AV, Alekseev, I, Alford, J, Anderson, BD, Anson, CD, Arkhipkin, D, Aschenauer, E, Averichev, GS, Balewski, J, Banerjee, A, Barnovska, Z, Beavis, DR, Bellwied, R, Betancourt, MJ, Betts, RR, Bhasin, A, Bhati, AK, Bichsel, H, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Borowski, W, Bouchet, J, Brandin, AV, Brovko, SG, Bruna, E, Bueltmann, S, Bunzarov, I, Burton, TP, Butterworth, J, Cai, XZ, Caines, H, Calderón De La Barca Sánchez, M, Cebra, D, Cendejas, R, Cervantes, MC, Chaloupka, P, Chang, Z, Chattopadhyay, S, Chen, HF, Chen, JH, Chen, JY, Chen, L, Cheng, J, Cherney, MG, Chikanian, A, Christie, W, Chung, P, Chwastowski, J, Codrington, MJM, Corliss, R, Cramer, JG, Crawford, HJ, Cui, X, Davila Leyva, A, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derradi De Souza, R, Dhamija, S, Didenko, L, Ding, F, Dion, A, Djawotho, P, Dong, X, Drachenberg, JL, Draper, JE, Du, CM, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elnimr, M, Engelage, J, Eppley, G, Eun, L, Evdokimov, O, Fatemi, R, Fazio, S, Fedorisin, J, Fersch, RG, Filip, P, Finch, E, Fisyak, Y, Gagliardi, CA, Gangadharan, DR, Geurts, F, Gibson, A, Gliske, S, Gorbunov, YN, Grebenyuk, OG, Grosnick, D, Gupta, S, Guryn, W, Haag, B, Hajkova, O, Hamed, A, Han, LX, Harris, JW, Hays-Wehle, JP, Heppelmann, S, Hirsch, A, Hoffmann, GW, Hofman, DJ, Horvat, S, Huang, B, Huang, HZ, Huck, P, Humanic, TJ, Huo, L, Igo, G, Jacobs, WW, Jena, C, Joseph, J, Judd, EG, Kabana, S, Kang, K, Kapitan, J, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Kesich, A, Kettler, D, Kikola, DP, Kiryluk, J, Kisiel, A, Kizka, V, Klein, SR, Koetke, DD, Kollegger, T, Konzer, J, Koralt, I, Koroleva, L, Korsch, W, Kotchenda, L, Kravtsov, P, Krueger, K, Kumar, L, Lamont, MAC, Landgraf, JM, Lapointe, S, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Leight, W, Levine, MJ, Li, C, Li, L, Li, W, Li, X, Li, X, Li, Y, Li, ZM, Lima, LM, Lisa, MA, Liu, F, Ljubicic, T, Llope, WJ, Longacre, RS, Lu, Y, Luo, X, Luszczak, A, Ma, GL, Ma, YG, Madagodagettige Don, DMMD, Mahapatra, DP, Majka, R, Mall, OI, Margetis, S, Markert, C, Masui, H, Matis, HS, McDonald, D, McShane, TS, Mioduszewski, S, Mitrovski, MK, Mohammed, Y, Mohanty, B, Mondal, MM, Morozov, B, Munhoz, MG, Mustafa, MK, Naglis, M, Nandi, BK, Nasim, M, Nayak, TK, Nogach, LV, Novak, J, Odyniec, G, Ogawa, A, Oh, K, Ohlson, A, Okorokov, V, Oldag, EW, Oliveira, RAN, Olson, D, Ostrowski, P, Pachr, M, Page, BS, Pal, SK, Pan, YX, Pandit, Y, Panebratsev, Y, Pawlak, T, Pawlik, B, Pei, H, Perkins, C, Peryt, W, Pile, P, Planinic, M, Pluta, J, Plyku, D, Poljak, N, Porter, J, Poskanzer, AM, Powell, CB, Prindle, D, Pruneau, C, Pruthi, NK, Przybycien, M, Pujahari, PR, Putschke, J, Qiu, H, Raniwala, R, Raniwala, S, Ray, RL, Redwine, R, Reed, R, Riley, CK, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Ross, JF, Ruan, L, Rusnak, J, Sahoo, NR, Sakrejda, I, Salur, S, Sandacz, A, Sandweiss, J, Sangaline, E, Sarkar, A, Schambach, J, Scharenberg, RP, Schmah, AM, Schmidke, B, Schmitz, N, Schuster, TR, Seele, J, Seger, JE, Seyboth, P, Shah, N, Shahaliev, E, Shao, M, Sharma, B, Sharma, M, Shi, SS, Shou, QY, Sichtermann, EP, Singaraju, RN, Skoby, MJ, Smirnov, D, Smirnov, N, Solanki, D, Sorensen, P, Desouza, UG, Spinka, HM, Srivastava, B, Stanislaus, TDS, Steadman, SG, Stevens, JR, Stock, R, Strikhanov, M, Stringfellow, B, Suaide, AAP, Suarez, MC, Sumbera, M, Sun, XM, Sun, Y, Sun, Z, Surrow, B, Svirida, DN, Symons, TJM, Szanto De Toledo, A, Takahashi, J, Tang, AH, Tang, Z, Tarini, LH, Tarnowsky, T, Thein, D, Thomas, JH, Tian, J, Timmins, AR, Tlusty, D, Tokarev, M, Trainor, TA, Trentalange, S, Tribble, RE, Tribedy, P, Trzeciak, BA, Tsai, OD, Turnau, J, Ullrich, T, Underwood, DG, Van Buren, G, Van Nieuwenhuizen, G, Vanfossen, JA, Varma, R, Vasconcelos, GMS, Videbæk, F, Viyogi, YP, Vokal, S, Voloshin, SA, Vossen, A, Wada, M, Wang, F, Wang, G, Wang, H, Wang, JS, Wang, Q, Wang, XL, Wang, Y, Webb, G, Webb, JC, Westfall, GD, Whitten, C, Wieman, H, Wissink, SW, Witt, R, Witzke, W, Wu, YF, Xiao, Z, Xie, W, Xin, K, Xu, H, Xu, N, Xu, QH, Xu, W, Xu, Y, Xu, Z, Xue, L, Yang, Y, Yang, Y, Yepes, P, Yi, Y, Yip, K, Yoo, IK, Zawisza, M, Zbroszczyk, H, Zhang, JB, Zhang, S, Zhang, WM, Zhang, XP, Zhang, Y, Zhang, ZP, Zhao, F, Zhao, J, Zhong, C, Zhu, X, Zhu, YH & Zoulkarneeva, Y 2012, 'Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV', Physical Review C - Nuclear Physics, vol. 86, no. 2, 024906. https://doi.org/10.1103/PhysRevC.86.024906
Adamczyk L, Agakishiev G, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I et al. Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. Physical Review C - Nuclear Physics. 2012 Aug 8;86(2). 024906. https://doi.org/10.1103/PhysRevC.86.024906
Adamczyk, L. ; Agakishiev, G. ; Aggarwal, M. M. ; Ahammed, Z. ; Alakhverdyants, A. V. ; Alekseev, I. ; Alford, J. ; Anderson, B. D. ; Anson, C. D. ; Arkhipkin, D. ; Aschenauer, E. ; Averichev, G. S. ; Balewski, J. ; Banerjee, A. ; Barnovska, Z. ; Beavis, D. R. ; Bellwied, R. ; Betancourt, M. J. ; Betts, R. R. ; Bhasin, A. ; Bhati, A. K. ; Bichsel, H. ; Bielcik, J. ; Bielcikova, J. ; Bland, L. C. ; Bordyuzhin, I. G. ; Borowski, W. ; Bouchet, J. ; Brandin, A. V. ; Brovko, S. G. ; Bruna, E. ; Bueltmann, S. ; Bunzarov, I. ; Burton, T. P. ; Butterworth, J. ; Cai, X. Z. ; Caines, H. ; Calderón De La Barca Sánchez, M. ; Cebra, D. ; Cendejas, R. ; Cervantes, M. C. ; Chaloupka, P. ; Chang, Z. ; Chattopadhyay, S. ; Chen, H. F. ; Chen, J. H. ; Chen, J. Y. ; Chen, L. ; Cheng, J. ; Cherney, Michael G. ; Chikanian, A. ; Christie, W. ; Chung, P. ; Chwastowski, J. ; Codrington, M. J M ; Corliss, R. ; Cramer, J. G. ; Crawford, H. J. ; Cui, X. ; Davila Leyva, A. ; De Silva, L. C. ; Debbe, R. R. ; Dedovich, T. G. ; Deng, J. ; Derradi De Souza, R. ; Dhamija, S. ; Didenko, L. ; Ding, F. ; Dion, A. ; Djawotho, P. ; Dong, X. ; Drachenberg, J. L. ; Draper, J. E. ; Du, C. M. ; Dunkelberger, L. E. ; Dunlop, J. C. ; Efimov, L. G. ; Elnimr, M. ; Engelage, J. ; Eppley, G. ; Eun, L. ; Evdokimov, O. ; Fatemi, R. ; Fazio, S. ; Fedorisin, J. ; Fersch, R. G. ; Filip, P. ; Finch, E. ; Fisyak, Y. ; Gagliardi, C. A. ; Gangadharan, D. R. ; Geurts, F. ; Gibson, A. ; Gliske, S. ; Gorbunov, Y. N. ; Grebenyuk, O. G. ; Grosnick, D. ; Gupta, S. ; Guryn, W. ; Haag, B. ; Hajkova, O. ; Hamed, A. ; Han, L. X. ; Harris, J. W. ; Hays-Wehle, J. P. ; Heppelmann, S. ; Hirsch, A. ; Hoffmann, G. W. ; Hofman, D. J. ; Horvat, S. ; Huang, B. ; Huang, H. Z. ; Huck, P. ; Humanic, T. J. ; Huo, L. ; Igo, G. ; Jacobs, W. W. ; Jena, C. ; Joseph, J. ; Judd, E. G. ; Kabana, S. ; Kang, K. ; Kapitan, J. ; Kauder, K. ; Ke, H. W. ; Keane, D. ; Kechechyan, A. ; Kesich, A. ; Kettler, D. ; Kikola, D. P. ; Kiryluk, J. ; Kisiel, A. ; Kizka, V. ; Klein, S. R. ; Koetke, D. D. ; Kollegger, T. ; Konzer, J. ; Koralt, I. ; Koroleva, L. ; Korsch, W. ; Kotchenda, L. ; Kravtsov, P. ; Krueger, K. ; Kumar, L. ; Lamont, M. A C ; Landgraf, J. M. ; Lapointe, S. ; Lauret, J. ; Lebedev, A. ; Lednicky, R. ; Lee, J. H. ; Leight, W. ; Levine, M. J. ; Li, C. ; Li, L. ; Li, W. ; Li, X. ; Li, X. ; Li, Y. ; Li, Z. M. ; Lima, L. M. ; Lisa, M. A. ; Liu, F. ; Ljubicic, T. ; Llope, W. J. ; Longacre, R. S. ; Lu, Y. ; Luo, X. ; Luszczak, A. ; Ma, G. L. ; Ma, Y. G. ; Madagodagettige Don, D. M M D ; Mahapatra, D. P. ; Majka, R. ; Mall, O. I. ; Margetis, S. ; Markert, C. ; Masui, H. ; Matis, H. S. ; McDonald, D. ; McShane, T. S. ; Mioduszewski, S. ; Mitrovski, M. K. ; Mohammed, Y. ; Mohanty, B. ; Mondal, M. M. ; Morozov, B. ; Munhoz, M. G. ; Mustafa, M. K. ; Naglis, M. ; Nandi, B. K. ; Nasim, Md ; Nayak, T. K. ; Nogach, L. V. ; Novak, J. ; Odyniec, G. ; Ogawa, A. ; Oh, K. ; Ohlson, A. ; Okorokov, V. ; Oldag, E. W. ; Oliveira, R. A N ; Olson, D. ; Ostrowski, P. ; Pachr, M. ; Page, B. S. ; Pal, S. K. ; Pan, Y. X. ; Pandit, Y. ; Panebratsev, Y. ; Pawlak, T. ; Pawlik, B. ; Pei, H. ; Perkins, C. ; Peryt, W. ; Pile, P. ; Planinic, M. ; Pluta, J. ; Plyku, D. ; Poljak, N. ; Porter, J. ; Poskanzer, A. M. ; Powell, C. B. ; Prindle, D. ; Pruneau, C. ; Pruthi, N. K. ; Przybycien, M. ; Pujahari, P. R. ; Putschke, J. ; Qiu, H. ; Raniwala, R. ; Raniwala, S. ; Ray, R. L. ; Redwine, R. ; Reed, R. ; Riley, C. K. ; Ritter, H. G. ; Roberts, J. B. ; Rogachevskiy, O. V. ; Romero, J. L. ; Ross, J. F. ; Ruan, L. ; Rusnak, J. ; Sahoo, N. R. ; Sakrejda, I. ; Salur, S. ; Sandacz, A. ; Sandweiss, J. ; Sangaline, E. ; Sarkar, A. ; Schambach, J. ; Scharenberg, R. P. ; Schmah, A. M. ; Schmidke, B. ; Schmitz, N. ; Schuster, T. R. ; Seele, J. ; Seger, Janet E. ; Seyboth, P. ; Shah, N. ; Shahaliev, E. ; Shao, M. ; Sharma, B. ; Sharma, M. ; Shi, S. S. ; Shou, Q. Y. ; Sichtermann, E. P. ; Singaraju, R. N. ; Skoby, M. J. ; Smirnov, D. ; Smirnov, N. ; Solanki, D. ; Sorensen, P. ; Desouza, U. G. ; Spinka, H. M. ; Srivastava, B. ; Stanislaus, T. D S ; Steadman, S. G. ; Stevens, J. R. ; Stock, R. ; Strikhanov, M. ; Stringfellow, B. ; Suaide, A. A P ; Suarez, M. C. ; Sumbera, M. ; Sun, X. M. ; Sun, Y. ; Sun, Z. ; Surrow, B. ; Svirida, D. N. ; Symons, T. J M ; Szanto De Toledo, A. ; Takahashi, J. ; Tang, A. H. ; Tang, Z. ; Tarini, L. H. ; Tarnowsky, T. ; Thein, D. ; Thomas, J. H. ; Tian, J. ; Timmins, A. R. ; Tlusty, D. ; Tokarev, M. ; Trainor, T. A. ; Trentalange, S. ; Tribble, R. E. ; Tribedy, P. ; Trzeciak, B. A. ; Tsai, O. D. ; Turnau, J. ; Ullrich, T. ; Underwood, D. G. ; Van Buren, G. ; Van Nieuwenhuizen, G. ; Vanfossen, J. A. ; Varma, R. ; Vasconcelos, G. M S ; Videbæk, F. ; Viyogi, Y. P. ; Vokal, S. ; Voloshin, S. A. ; Vossen, A. ; Wada, M. ; Wang, F. ; Wang, G. ; Wang, H. ; Wang, J. S. ; Wang, Q. ; Wang, X. L. ; Wang, Y. ; Webb, G. ; Webb, J. C. ; Westfall, G. D. ; Whitten, C. ; Wieman, H. ; Wissink, S. W. ; Witt, R. ; Witzke, W. ; Wu, Y. F. ; Xiao, Z. ; Xie, W. ; Xin, K. ; Xu, H. ; Xu, N. ; Xu, Q. H. ; Xu, W. ; Xu, Y. ; Xu, Z. ; Xue, L. ; Yang, Y. ; Yang, Y. ; Yepes, P. ; Yi, Y. ; Yip, K. ; Yoo, I. K. ; Zawisza, M. ; Zbroszczyk, H. ; Zhang, J. B. ; Zhang, S. ; Zhang, W. M. ; Zhang, X. P. ; Zhang, Y. ; Zhang, Z. P. ; Zhao, F. ; Zhao, J. ; Zhong, C. ; Zhu, X. ; Zhu, Y. H. ; Zoulkarneeva, Y. / Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. In: Physical Review C - Nuclear Physics. 2012 ; Vol. 86, No. 2.
@article{c7e4b14b7bcb4c288778bd8cc0f3fd50,
title = "Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV",
abstract = "We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e +e - decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10{\%} over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e +e - invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K +K - and J/ψ→e +e -. Our results suggest a new upper limit of the branching ratio of the η→e +e - of 1.7×10 -5 at the 90{\%} confidence level.",
author = "L. Adamczyk and G. Agakishiev and Aggarwal, {M. M.} and Z. Ahammed and Alakhverdyants, {A. V.} and I. Alekseev and J. Alford and Anderson, {B. D.} and Anson, {C. D.} and D. Arkhipkin and E. Aschenauer and Averichev, {G. S.} and J. Balewski and A. Banerjee and Z. Barnovska and Beavis, {D. R.} and R. Bellwied and Betancourt, {M. J.} and Betts, {R. R.} and A. Bhasin and Bhati, {A. K.} and H. Bichsel and J. Bielcik and J. Bielcikova and Bland, {L. C.} and Bordyuzhin, {I. G.} and W. Borowski and J. Bouchet and Brandin, {A. V.} and Brovko, {S. G.} and E. Bruna and S. Bueltmann and I. Bunzarov and Burton, {T. P.} and J. Butterworth and Cai, {X. Z.} and H. Caines and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and D. Cebra and R. Cendejas and Cervantes, {M. C.} and P. Chaloupka and Z. Chang and S. Chattopadhyay and Chen, {H. F.} and Chen, {J. H.} and Chen, {J. Y.} and L. Chen and J. Cheng and Cherney, {Michael G.} and A. Chikanian and W. Christie and P. Chung and J. Chwastowski and Codrington, {M. J M} and R. Corliss and Cramer, {J. G.} and Crawford, {H. J.} and X. Cui and {Davila Leyva}, A. and {De Silva}, {L. C.} and Debbe, {R. R.} and Dedovich, {T. G.} and J. Deng and {Derradi De Souza}, R. and S. Dhamija and L. Didenko and F. Ding and A. Dion and P. Djawotho and X. Dong and Drachenberg, {J. L.} and Draper, {J. E.} and Du, {C. M.} and Dunkelberger, {L. E.} and Dunlop, {J. C.} and Efimov, {L. G.} and M. Elnimr and J. Engelage and G. Eppley and L. Eun and O. Evdokimov and R. Fatemi and S. Fazio and J. Fedorisin and Fersch, {R. G.} and P. Filip and E. Finch and Y. Fisyak and Gagliardi, {C. A.} and Gangadharan, {D. R.} and F. Geurts and A. Gibson and S. Gliske and Gorbunov, {Y. N.} and Grebenyuk, {O. G.} and D. Grosnick and S. Gupta and W. Guryn and B. Haag and O. Hajkova and A. Hamed and Han, {L. X.} and Harris, {J. W.} and Hays-Wehle, {J. P.} and S. Heppelmann and A. Hirsch and Hoffmann, {G. W.} and Hofman, {D. J.} and S. Horvat and B. Huang and Huang, {H. Z.} and P. Huck and Humanic, {T. J.} and L. Huo and G. Igo and Jacobs, {W. W.} and C. Jena and J. Joseph and Judd, {E. G.} and S. Kabana and K. Kang and J. Kapitan and K. Kauder and Ke, {H. W.} and D. Keane and A. Kechechyan and A. Kesich and D. Kettler and Kikola, {D. P.} and J. Kiryluk and A. Kisiel and V. Kizka and Klein, {S. R.} and Koetke, {D. D.} and T. Kollegger and J. Konzer and I. Koralt and L. Koroleva and W. Korsch and L. Kotchenda and P. Kravtsov and K. Krueger and L. Kumar and Lamont, {M. A C} and Landgraf, {J. M.} and S. Lapointe and J. Lauret and A. Lebedev and R. Lednicky and Lee, {J. H.} and W. Leight and Levine, {M. J.} and C. Li and L. Li and W. Li and X. Li and X. Li and Y. Li and Li, {Z. M.} and Lima, {L. M.} and Lisa, {M. A.} and F. Liu and T. Ljubicic and Llope, {W. J.} and Longacre, {R. S.} and Y. Lu and X. Luo and A. Luszczak and Ma, {G. L.} and Ma, {Y. G.} and {Madagodagettige Don}, {D. M M D} and Mahapatra, {D. P.} and R. Majka and Mall, {O. I.} and S. Margetis and C. Markert and H. Masui and Matis, {H. S.} and D. McDonald and McShane, {T. S.} and S. Mioduszewski and Mitrovski, {M. K.} and Y. Mohammed and B. Mohanty and Mondal, {M. M.} and B. Morozov and Munhoz, {M. G.} and Mustafa, {M. K.} and M. Naglis and Nandi, {B. K.} and Md Nasim and Nayak, {T. K.} and Nogach, {L. V.} and J. Novak and G. Odyniec and A. Ogawa and K. Oh and A. Ohlson and V. Okorokov and Oldag, {E. W.} and Oliveira, {R. A N} and D. Olson and P. Ostrowski and M. Pachr and Page, {B. S.} and Pal, {S. K.} and Pan, {Y. X.} and Y. Pandit and Y. Panebratsev and T. Pawlak and B. Pawlik and H. Pei and C. Perkins and W. Peryt and P. Pile and M. Planinic and J. Pluta and D. Plyku and N. Poljak and J. Porter and Poskanzer, {A. M.} and Powell, {C. B.} and D. Prindle and C. Pruneau and Pruthi, {N. K.} and M. Przybycien and Pujahari, {P. R.} and J. Putschke and H. Qiu and R. Raniwala and S. Raniwala and Ray, {R. L.} and R. Redwine and R. Reed and Riley, {C. K.} and Ritter, {H. G.} and Roberts, {J. B.} and Rogachevskiy, {O. V.} and Romero, {J. L.} and Ross, {J. F.} and L. Ruan and J. Rusnak and Sahoo, {N. R.} and I. Sakrejda and S. Salur and A. Sandacz and J. Sandweiss and E. Sangaline and A. Sarkar and J. Schambach and Scharenberg, {R. P.} and Schmah, {A. M.} and B. Schmidke and N. Schmitz and Schuster, {T. R.} and J. Seele and Seger, {Janet E.} and P. Seyboth and N. Shah and E. Shahaliev and M. Shao and B. Sharma and M. Sharma and Shi, {S. S.} and Shou, {Q. Y.} and Sichtermann, {E. P.} and Singaraju, {R. N.} and Skoby, {M. J.} and D. Smirnov and N. Smirnov and D. Solanki and P. Sorensen and Desouza, {U. G.} and Spinka, {H. M.} and B. Srivastava and Stanislaus, {T. D S} and Steadman, {S. G.} and Stevens, {J. R.} and R. Stock and M. Strikhanov and B. Stringfellow and Suaide, {A. A P} and Suarez, {M. C.} and M. Sumbera and Sun, {X. M.} and Y. Sun and Z. Sun and B. Surrow and Svirida, {D. N.} and Symons, {T. J M} and {Szanto De Toledo}, A. and J. Takahashi and Tang, {A. H.} and Z. Tang and Tarini, {L. H.} and T. Tarnowsky and D. Thein and Thomas, {J. H.} and J. Tian and Timmins, {A. R.} and D. Tlusty and M. Tokarev and Trainor, {T. A.} and S. Trentalange and Tribble, {R. E.} and P. Tribedy and Trzeciak, {B. A.} and Tsai, {O. D.} and J. Turnau and T. Ullrich and Underwood, {D. G.} and {Van Buren}, G. and {Van Nieuwenhuizen}, G. and Vanfossen, {J. A.} and R. Varma and Vasconcelos, {G. M S} and F. Videb{\ae}k and Viyogi, {Y. P.} and S. Vokal and Voloshin, {S. A.} and A. Vossen and M. Wada and F. Wang and G. Wang and H. Wang and Wang, {J. S.} and Q. Wang and Wang, {X. L.} and Y. Wang and G. Webb and Webb, {J. C.} and Westfall, {G. D.} and C. Whitten and H. Wieman and Wissink, {S. W.} and R. Witt and W. Witzke and Wu, {Y. F.} and Z. Xiao and W. Xie and K. Xin and H. Xu and N. Xu and Xu, {Q. H.} and W. Xu and Y. Xu and Z. Xu and L. Xue and Y. Yang and Y. Yang and P. Yepes and Y. Yi and K. Yip and Yoo, {I. K.} and M. Zawisza and H. Zbroszczyk and Zhang, {J. B.} and S. Zhang and Zhang, {W. M.} and Zhang, {X. P.} and Y. Zhang and Zhang, {Z. P.} and F. Zhao and J. Zhao and C. Zhong and X. Zhu and Zhu, {Y. H.} and Y. Zoulkarneeva",
year = "2012",
month = "8",
day = "8",
doi = "10.1103/PhysRevC.86.024906",
language = "English",
volume = "86",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV

AU - Adamczyk, L.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alakhverdyants, A. V.

AU - Alekseev, I.

AU - Alford, J.

AU - Anderson, B. D.

AU - Anson, C. D.

AU - Arkhipkin, D.

AU - Aschenauer, E.

AU - Averichev, G. S.

AU - Balewski, J.

AU - Banerjee, A.

AU - Barnovska, Z.

AU - Beavis, D. R.

AU - Bellwied, R.

AU - Betancourt, M. J.

AU - Betts, R. R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bichsel, H.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Borowski, W.

AU - Bouchet, J.

AU - Brandin, A. V.

AU - Brovko, S. G.

AU - Bruna, E.

AU - Bueltmann, S.

AU - Bunzarov, I.

AU - Burton, T. P.

AU - Butterworth, J.

AU - Cai, X. Z.

AU - Caines, H.

AU - Calderón De La Barca Sánchez, M.

AU - Cebra, D.

AU - Cendejas, R.

AU - Cervantes, M. C.

AU - Chaloupka, P.

AU - Chang, Z.

AU - Chattopadhyay, S.

AU - Chen, H. F.

AU - Chen, J. H.

AU - Chen, J. Y.

AU - Chen, L.

AU - Cheng, J.

AU - Cherney, Michael G.

AU - Chikanian, A.

AU - Christie, W.

AU - Chung, P.

AU - Chwastowski, J.

AU - Codrington, M. J M

AU - Corliss, R.

AU - Cramer, J. G.

AU - Crawford, H. J.

AU - Cui, X.

AU - Davila Leyva, A.

AU - De Silva, L. C.

AU - Debbe, R. R.

AU - Dedovich, T. G.

AU - Deng, J.

AU - Derradi De Souza, R.

AU - Dhamija, S.

AU - Didenko, L.

AU - Ding, F.

AU - Dion, A.

AU - Djawotho, P.

AU - Dong, X.

AU - Drachenberg, J. L.

AU - Draper, J. E.

AU - Du, C. M.

AU - Dunkelberger, L. E.

AU - Dunlop, J. C.

AU - Efimov, L. G.

AU - Elnimr, M.

AU - Engelage, J.

AU - Eppley, G.

AU - Eun, L.

AU - Evdokimov, O.

AU - Fatemi, R.

AU - Fazio, S.

AU - Fedorisin, J.

AU - Fersch, R. G.

AU - Filip, P.

AU - Finch, E.

AU - Fisyak, Y.

AU - Gagliardi, C. A.

AU - Gangadharan, D. R.

AU - Geurts, F.

AU - Gibson, A.

AU - Gliske, S.

AU - Gorbunov, Y. N.

AU - Grebenyuk, O. G.

AU - Grosnick, D.

AU - Gupta, S.

AU - Guryn, W.

AU - Haag, B.

AU - Hajkova, O.

AU - Hamed, A.

AU - Han, L. X.

AU - Harris, J. W.

AU - Hays-Wehle, J. P.

AU - Heppelmann, S.

AU - Hirsch, A.

AU - Hoffmann, G. W.

AU - Hofman, D. J.

AU - Horvat, S.

AU - Huang, B.

AU - Huang, H. Z.

AU - Huck, P.

AU - Humanic, T. J.

AU - Huo, L.

AU - Igo, G.

AU - Jacobs, W. W.

AU - Jena, C.

AU - Joseph, J.

AU - Judd, E. G.

AU - Kabana, S.

AU - Kang, K.

AU - Kapitan, J.

AU - Kauder, K.

AU - Ke, H. W.

AU - Keane, D.

AU - Kechechyan, A.

AU - Kesich, A.

AU - Kettler, D.

AU - Kikola, D. P.

AU - Kiryluk, J.

AU - Kisiel, A.

AU - Kizka, V.

AU - Klein, S. R.

AU - Koetke, D. D.

AU - Kollegger, T.

AU - Konzer, J.

AU - Koralt, I.

AU - Koroleva, L.

AU - Korsch, W.

AU - Kotchenda, L.

AU - Kravtsov, P.

AU - Krueger, K.

AU - Kumar, L.

AU - Lamont, M. A C

AU - Landgraf, J. M.

AU - Lapointe, S.

AU - Lauret, J.

AU - Lebedev, A.

AU - Lednicky, R.

AU - Lee, J. H.

AU - Leight, W.

AU - Levine, M. J.

AU - Li, C.

AU - Li, L.

AU - Li, W.

AU - Li, X.

AU - Li, X.

AU - Li, Y.

AU - Li, Z. M.

AU - Lima, L. M.

AU - Lisa, M. A.

AU - Liu, F.

AU - Ljubicic, T.

AU - Llope, W. J.

AU - Longacre, R. S.

AU - Lu, Y.

AU - Luo, X.

AU - Luszczak, A.

AU - Ma, G. L.

AU - Ma, Y. G.

AU - Madagodagettige Don, D. M M D

AU - Mahapatra, D. P.

AU - Majka, R.

AU - Mall, O. I.

AU - Margetis, S.

AU - Markert, C.

AU - Masui, H.

AU - Matis, H. S.

AU - McDonald, D.

AU - McShane, T. S.

AU - Mioduszewski, S.

AU - Mitrovski, M. K.

AU - Mohammed, Y.

AU - Mohanty, B.

AU - Mondal, M. M.

AU - Morozov, B.

AU - Munhoz, M. G.

AU - Mustafa, M. K.

AU - Naglis, M.

AU - Nandi, B. K.

AU - Nasim, Md

AU - Nayak, T. K.

AU - Nogach, L. V.

AU - Novak, J.

AU - Odyniec, G.

AU - Ogawa, A.

AU - Oh, K.

AU - Ohlson, A.

AU - Okorokov, V.

AU - Oldag, E. W.

AU - Oliveira, R. A N

AU - Olson, D.

AU - Ostrowski, P.

AU - Pachr, M.

AU - Page, B. S.

AU - Pal, S. K.

AU - Pan, Y. X.

AU - Pandit, Y.

AU - Panebratsev, Y.

AU - Pawlak, T.

AU - Pawlik, B.

AU - Pei, H.

AU - Perkins, C.

AU - Peryt, W.

AU - Pile, P.

AU - Planinic, M.

AU - Pluta, J.

AU - Plyku, D.

AU - Poljak, N.

AU - Porter, J.

AU - Poskanzer, A. M.

AU - Powell, C. B.

AU - Prindle, D.

AU - Pruneau, C.

AU - Pruthi, N. K.

AU - Przybycien, M.

AU - Pujahari, P. R.

AU - Putschke, J.

AU - Qiu, H.

AU - Raniwala, R.

AU - Raniwala, S.

AU - Ray, R. L.

AU - Redwine, R.

AU - Reed, R.

AU - Riley, C. K.

AU - Ritter, H. G.

AU - Roberts, J. B.

AU - Rogachevskiy, O. V.

AU - Romero, J. L.

AU - Ross, J. F.

AU - Ruan, L.

AU - Rusnak, J.

AU - Sahoo, N. R.

AU - Sakrejda, I.

AU - Salur, S.

AU - Sandacz, A.

AU - Sandweiss, J.

AU - Sangaline, E.

AU - Sarkar, A.

AU - Schambach, J.

AU - Scharenberg, R. P.

AU - Schmah, A. M.

AU - Schmidke, B.

AU - Schmitz, N.

AU - Schuster, T. R.

AU - Seele, J.

AU - Seger, Janet E.

AU - Seyboth, P.

AU - Shah, N.

AU - Shahaliev, E.

AU - Shao, M.

AU - Sharma, B.

AU - Sharma, M.

AU - Shi, S. S.

AU - Shou, Q. Y.

AU - Sichtermann, E. P.

AU - Singaraju, R. N.

AU - Skoby, M. J.

AU - Smirnov, D.

AU - Smirnov, N.

AU - Solanki, D.

AU - Sorensen, P.

AU - Desouza, U. G.

AU - Spinka, H. M.

AU - Srivastava, B.

AU - Stanislaus, T. D S

AU - Steadman, S. G.

AU - Stevens, J. R.

AU - Stock, R.

AU - Strikhanov, M.

AU - Stringfellow, B.

AU - Suaide, A. A P

AU - Suarez, M. C.

AU - Sumbera, M.

AU - Sun, X. M.

AU - Sun, Y.

AU - Sun, Z.

AU - Surrow, B.

AU - Svirida, D. N.

AU - Symons, T. J M

AU - Szanto De Toledo, A.

AU - Takahashi, J.

AU - Tang, A. H.

AU - Tang, Z.

AU - Tarini, L. H.

AU - Tarnowsky, T.

AU - Thein, D.

AU - Thomas, J. H.

AU - Tian, J.

AU - Timmins, A. R.

AU - Tlusty, D.

AU - Tokarev, M.

AU - Trainor, T. A.

AU - Trentalange, S.

AU - Tribble, R. E.

AU - Tribedy, P.

AU - Trzeciak, B. A.

AU - Tsai, O. D.

AU - Turnau, J.

AU - Ullrich, T.

AU - Underwood, D. G.

AU - Van Buren, G.

AU - Van Nieuwenhuizen, G.

AU - Vanfossen, J. A.

AU - Varma, R.

AU - Vasconcelos, G. M S

AU - Videbæk, F.

AU - Viyogi, Y. P.

AU - Vokal, S.

AU - Voloshin, S. A.

AU - Vossen, A.

AU - Wada, M.

AU - Wang, F.

AU - Wang, G.

AU - Wang, H.

AU - Wang, J. S.

AU - Wang, Q.

AU - Wang, X. L.

AU - Wang, Y.

AU - Webb, G.

AU - Webb, J. C.

AU - Westfall, G. D.

AU - Whitten, C.

AU - Wieman, H.

AU - Wissink, S. W.

AU - Witt, R.

AU - Witzke, W.

AU - Wu, Y. F.

AU - Xiao, Z.

AU - Xie, W.

AU - Xin, K.

AU - Xu, H.

AU - Xu, N.

AU - Xu, Q. H.

AU - Xu, W.

AU - Xu, Y.

AU - Xu, Z.

AU - Xue, L.

AU - Yang, Y.

AU - Yang, Y.

AU - Yepes, P.

AU - Yi, Y.

AU - Yip, K.

AU - Yoo, I. K.

AU - Zawisza, M.

AU - Zbroszczyk, H.

AU - Zhang, J. B.

AU - Zhang, S.

AU - Zhang, W. M.

AU - Zhang, X. P.

AU - Zhang, Y.

AU - Zhang, Z. P.

AU - Zhao, F.

AU - Zhao, J.

AU - Zhong, C.

AU - Zhu, X.

AU - Zhu, Y. H.

AU - Zoulkarneeva, Y.

PY - 2012/8/8

Y1 - 2012/8/8

N2 - We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e +e - decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e +e - invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K +K - and J/ψ→e +e -. Our results suggest a new upper limit of the branching ratio of the η→e +e - of 1.7×10 -5 at the 90% confidence level.

AB - We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e +e - decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e +e - invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K +K - and J/ψ→e +e -. Our results suggest a new upper limit of the branching ratio of the η→e +e - of 1.7×10 -5 at the 90% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=84864965637&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864965637&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.86.024906

DO - 10.1103/PhysRevC.86.024906

M3 - Article

VL - 86

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 2

M1 - 024906

ER -