Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p + p collisions at s=500 GeV

L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, N. N. Ajitanand, I. Alekseev, D. M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E. C. Aschenauer, M. U. Ashraf, A. Attri, G. S. Averichev, V. Bairathi, K. Barish, A. Behera, R. BellwiedA. Bhasin, A. K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, J. Bouchet, J. D. Brandenburg, A. V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J. M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J. H. Chen, X. Chen, X. Chen, J. Cheng, Michael G. Cherney, W. Christie, G. Contin, H. J. Crawford, T. G. Dedovich, J. Deng, I. M. Deppner, A. A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J. L. Drachenberg, J. E. Draper, J. C. Dunlop, L. G. Efimov, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, P. Federicova, J. Fedorisin, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C. E. Flores, J. Fujita, L. Fulek, C. A. Gagliardi, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D. S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A. I. Hamad, A. Hamed, A. Harlenderova, J. W. Harris, L. He, S. Heppelmann, S. Heppelmann, N. Herrmann, A. Hirsch, S. Horvat, X. Huang, H. Z. Huang, T. Huang, B. Huang, T. J. Humanic, P. Huo, G. Igo, W. W. Jacobs, A. Jentsch, J. Jia, K. Jiang, S. Jowzaee, E. G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, Z. Khan, D. P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L. K. Kosarzewski, A. F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J. H. Kwasizur, R. Lacey, J. M. Landgraf, K. D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, W. Li, C. Li, X. Li, Y. Li, J. Lidrych, T. Lin, M. A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W. J. Llope, M. Lomnitz, R. S. Longacre, X. Luo, S. Luo, L. Ma, Y. G. Ma, G. L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H. S. Matis, D. Mayes, K. Meehan, J. C. Mei, Z. W. Miller, N. G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M. M. Mondal, D. A. Morozov, M. K. Mustafa, Md Nasim, T. K. Nayak, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, S. B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. A. Okorokov, D. Olvitt, B. S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N. K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. Ramachandran, R. L. Ray, R. Reed, M. J. Rehbein, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, J. D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N. R. Sahoo, P. K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A. M. Schmah, W. B. Schmidke, N. Schmitz, B. R. Schweid, Janet E. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, M. Shao, W. Q. Shen, S. S. Shi, Z. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, M. Simko, S. Singha, M. J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, P. Sorensen, H. M. Spinka, B. Srivastava, T. D.S. Stanislaus, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, X. Sun, X. M. Sun, Y. Sun, B. Surrow, D. N. Svirida, Z. Tang, A. H. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, B. A. Trzeciak, O. D. Tsai, B. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A. N. Vasiliev, F. Videbæk, S. Vokal, S. A. Voloshin, A. Vossen, G. Wang, Y. Wang, Y. Wang, F. Wang, G. Webb, J. C. Webb, L. Wen, G. D. Westfall, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, Z. G. Xiao, G. Xie, W. Xie, N. Xu, Y. F. Xu, Q. H. Xu, Z. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I. K. Yoo, H. Zbroszczyk, W. Zha, J. B. Zhang, J. Zhang, S. Zhang, J. Zhang, S. Zhang, Z. Zhang, Y. Zhang, L. Zhang, X. P. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, X. Zhu, Z. Zhu, M. Zyzak

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons. This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.

Original languageEnglish (US)
Pages (from-to)332-339
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume780
DOIs
StatePublished - May 10 2018

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inelastic scattering
pions
collisions
polarization
nucleons
partons
momentum transfer
fragmentation
mesons
luminosity
asymmetry
quarks
scalars

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p + p collisions at s=500 GeV. / Adamczyk, L.; Adams, J. R.; Adkins, J. K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Ajitanand, N. N.; Alekseev, I.; Anderson, D. M.; Aoyama, R.; Aparin, A.; Arkhipkin, D.; Aschenauer, E. C.; Ashraf, M. U.; Attri, A.; Averichev, G. S.; Bairathi, V.; Barish, K.; Behera, A.; Bellwied, R.; Bhasin, A.; Bhati, A. K.; Bhattarai, P.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Bordyuzhin, I. G.; Bouchet, J.; Brandenburg, J. D.; Brandin, A. V.; Brown, D.; Bryslawskyj, J.; Bunzarov, I.; Butterworth, J.; Caines, H.; Calderón de la Barca Sánchez, M.; Campbell, J. M.; Cebra, D.; Chakaberia, I.; Chaloupka, P.; Chang, Z.; Chankova-Bunzarova, N.; Chatterjee, A.; Chattopadhyay, S.; Chen, J. H.; Chen, X.; Chen, X.; Cheng, J.; Cherney, Michael G.; Christie, W.; Contin, G.; Crawford, H. J.; Dedovich, T. G.; Deng, J.; Deppner, I. M.; Derevschikov, A. A.; Didenko, L.; Dilks, C.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Efimov, L. G.; Elsey, N.; Engelage, J.; Eppley, G.; Esha, R.; Esumi, S.; Evdokimov, O.; Ewigleben, J.; Eyser, O.; Fatemi, R.; Fazio, S.; Federic, P.; Federicova, P.; Fedorisin, J.; Feng, Z.; Filip, P.; Finch, E.; Fisyak, Y.; Flores, C. E.; Fujita, J.; Fulek, L.; Gagliardi, C. A.; Geurts, F.; Gibson, A.; Girard, M.; Grosnick, D.; Gunarathne, D. S.; Guo, Y.; Gupta, A.; Guryn, W.; Hamad, A. I.; Hamed, A.; Harlenderova, A.; Harris, J. W.; He, L.; Heppelmann, S.; Heppelmann, S.; Herrmann, N.; Hirsch, A.; Horvat, S.; Huang, X.; Huang, H. Z.; Huang, T.; Huang, B.; Humanic, T. J.; Huo, P.; Igo, G.; Jacobs, W. W.; Jentsch, A.; Jia, J.; Jiang, K.; Jowzaee, S.; Judd, E. G.; Kabana, S.; Kalinkin, D.; Kang, K.; Kapukchyan, D.; Kauder, K.; Ke, H. W.; Keane, D.; Kechechyan, A.; Khan, Z.; Kikoła, D. P.; Kim, C.; Kisel, I.; Kisiel, A.; Kochenda, L.; Kocmanek, M.; Kollegger, T.; Kosarzewski, L. K.; Kraishan, A. F.; Krauth, L.; Kravtsov, P.; Krueger, K.; Kulathunga, N.; Kumar, L.; Kvapil, J.; Kwasizur, J. H.; Lacey, R.; Landgraf, J. M.; Landry, K. D.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, J. H.; Li, W.; Li, C.; Li, X.; Li, Y.; Lidrych, J.; Lin, T.; Lisa, M. A.; Liu, Y.; Liu, H.; Liu, F.; Liu, P.; Ljubicic, T.; Llope, W. J.; Lomnitz, M.; Longacre, R. S.; Luo, X.; Luo, S.; Ma, L.; Ma, Y. G.; Ma, G. L.; Ma, R.; Magdy, N.; Majka, R.; Mallick, D.; Margetis, S.; Markert, C.; Matis, H. S.; Mayes, D.; Meehan, K.; Mei, J. C.; Miller, Z. W.; Minaev, N. G.; Mioduszewski, S.; Mishra, D.; Mizuno, S.; Mohanty, B.; Mondal, M. M.; Morozov, D. A.; Mustafa, M. K.; Nasim, Md; Nayak, T. K.; Nelson, J. M.; Nemes, D. B.; Nie, M.; Nigmatkulov, G.; Niida, T.; Nogach, L. V.; Nonaka, T.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Oh, K.; Okorokov, V. A.; Olvitt, D.; Page, B. S.; Pak, R.; Pandit, Y.; Panebratsev, Y.; Pawlik, B.; Pei, H.; Perkins, C.; Pluta, J.; Poniatowska, K.; Porter, J.; Posik, M.; Pruthi, N. K.; Przybycien, M.; Putschke, J.; Quintero, A.; Ramachandran, S.; Ray, R. L.; Reed, R.; Rehbein, M. J.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Roth, J. D.; Ruan, L.; Rusnak, J.; Rusnakova, O.; Sahoo, N. R.; Sahu, P. K.; Salur, S.; Sandweiss, J.; Saur, M.; Schambach, J.; Schmah, A. M.; Schmidke, W. B.; Schmitz, N.; Schweid, B. R.; Seger, Janet E.; Sergeeva, M.; Seto, R.; Seyboth, P.; Shah, N.; Shahaliev, E.; Shanmuganathan, P. V.; Shao, M.; Shen, W. Q.; Shi, S. S.; Shi, Z.; Shou, Q. Y.; Sichtermann, E. P.; Sikora, R.; Simko, M.; Singha, S.; Skoby, M. J.; Smirnov, N.; Smirnov, D.; Solyst, W.; Sorensen, P.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D.S.; Stewart, D. J.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A.P.; Sugiura, T.; Sumbera, M.; Summa, B.; Sun, X.; Sun, X. M.; Sun, Y.; Surrow, B.; Svirida, D. N.; Tang, Z.; Tang, A. H.; Taranenko, A.; Tarnowsky, T.; Tawfik, A.; Thäder, J.; Thomas, J. H.; Timmins, A. R.; Tlusty, D.; Todoroki, T.; Tokarev, M.; Trentalange, S.; Tribble, R. E.; Tribedy, P.; Tripathy, S. K.; Trzeciak, B. A.; Tsai, O. D.; Tu, B.; Ullrich, T.; Underwood, D. G.; Upsal, I.; Van Buren, G.; van Nieuwenhuizen, G.; Vasiliev, A. N.; Videbæk, F.; Vokal, S.; Voloshin, S. A.; Vossen, A.; Wang, G.; Wang, Y.; Wang, Y.; Wang, F.; Webb, G.; Webb, J. C.; Wen, L.; Westfall, G. D.; Wieman, H.; Wissink, S. W.; Witt, R.; Wu, Y.; Xiao, Z. G.; Xie, G.; Xie, W.; Xu, N.; Xu, Y. F.; Xu, Q. H.; Xu, Z.; Yang, Y.; Yang, C.; Yang, S.; Yang, Q.; Ye, Z.; Yi, L.; Yip, K.; Yoo, I. K.; Zbroszczyk, H.; Zha, W.; Zhang, J. B.; Zhang, J.; Zhang, S.; Zhang, J.; Zhang, S.; Zhang, Z.; Zhang, Y.; Zhang, L.; Zhang, X. P.; Zhao, J.; Zhong, C.; Zhou, C.; Zhou, L.; Zhu, X.; Zhu, Z.; Zyzak, M.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 780, 10.05.2018, p. 332-339.

Research output: Contribution to journalArticle

Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bairathi, V, Barish, K, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bryslawskyj, J, Bunzarov, I, Butterworth, J, Caines, H, Calderón de la Barca Sánchez, M, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, JH, Chen, X, Chen, X, Cheng, J, Cherney, MG, Christie, W, Contin, G, Crawford, HJ, Dedovich, TG, Deng, J, Deppner, IM, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Heppelmann, S, Herrmann, N, Hirsch, A, Horvat, S, Huang, X, Huang, HZ, Huang, T, Huang, B, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikoła, DP, Kim, C, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Krauth, L, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, W, Li, C, Li, X, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, Y, Liu, H, Liu, F, Liu, P, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, L, Ma, YG, Ma, GL, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Mayes, D, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nemes, DB, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Olvitt, D, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Pruthi, NK, Przybycien, M, Putschke, J, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, JE, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Shen, WQ, Shi, SS, Shi, Z, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stewart, DJ, Strikhanov, M, Stringfellow, B, Suaide, AAP, Sugiura, T, Sumbera, M, Summa, B, Sun, X, Sun, XM, Sun, Y, Surrow, B, Svirida, DN, Tang, Z, Tang, AH, Taranenko, A, Tarnowsky, T, Tawfik, A, Thäder, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Tu, B, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbæk, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, Y, Wang, F, Webb, G, Webb, JC, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xu, N, Xu, YF, Xu, QH, Xu, Z, Yang, Y, Yang, C, Yang, S, Yang, Q, Ye, Z, Yi, L, Yip, K, Yoo, IK, Zbroszczyk, H, Zha, W, Zhang, JB, Zhang, J, Zhang, S, Zhang, J, Zhang, S, Zhang, Z, Zhang, Y, Zhang, L, Zhang, XP, Zhao, J, Zhong, C, Zhou, C, Zhou, L, Zhu, X, Zhu, Z & Zyzak, M 2018, 'Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p + p collisions at s=500 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 780, pp. 332-339. https://doi.org/10.1016/j.physletb.2018.02.069
Adamczyk, L. ; Adams, J. R. ; Adkins, J. K. ; Agakishiev, G. ; Aggarwal, M. M. ; Ahammed, Z. ; Ajitanand, N. N. ; Alekseev, I. ; Anderson, D. M. ; Aoyama, R. ; Aparin, A. ; Arkhipkin, D. ; Aschenauer, E. C. ; Ashraf, M. U. ; Attri, A. ; Averichev, G. S. ; Bairathi, V. ; Barish, K. ; Behera, A. ; Bellwied, R. ; Bhasin, A. ; Bhati, A. K. ; Bhattarai, P. ; Bielcik, J. ; Bielcikova, J. ; Bland, L. C. ; Bordyuzhin, I. G. ; Bouchet, J. ; Brandenburg, J. D. ; Brandin, A. V. ; Brown, D. ; Bryslawskyj, J. ; Bunzarov, I. ; Butterworth, J. ; Caines, H. ; Calderón de la Barca Sánchez, M. ; Campbell, J. M. ; Cebra, D. ; Chakaberia, I. ; Chaloupka, P. ; Chang, Z. ; Chankova-Bunzarova, N. ; Chatterjee, A. ; Chattopadhyay, S. ; Chen, J. H. ; Chen, X. ; Chen, X. ; Cheng, J. ; Cherney, Michael G. ; Christie, W. ; Contin, G. ; Crawford, H. J. ; Dedovich, T. G. ; Deng, J. ; Deppner, I. M. ; Derevschikov, A. A. ; Didenko, L. ; Dilks, C. ; Dong, X. ; Drachenberg, J. L. ; Draper, J. E. ; Dunlop, J. C. ; Efimov, L. G. ; Elsey, N. ; Engelage, J. ; Eppley, G. ; Esha, R. ; Esumi, S. ; Evdokimov, O. ; Ewigleben, J. ; Eyser, O. ; Fatemi, R. ; Fazio, S. ; Federic, P. ; Federicova, P. ; Fedorisin, J. ; Feng, Z. ; Filip, P. ; Finch, E. ; Fisyak, Y. ; Flores, C. E. ; Fujita, J. ; Fulek, L. ; Gagliardi, C. A. ; Geurts, F. ; Gibson, A. ; Girard, M. ; Grosnick, D. ; Gunarathne, D. S. ; Guo, Y. ; Gupta, A. ; Guryn, W. ; Hamad, A. I. ; Hamed, A. ; Harlenderova, A. ; Harris, J. W. ; He, L. ; Heppelmann, S. ; Heppelmann, S. ; Herrmann, N. ; Hirsch, A. ; Horvat, S. ; Huang, X. ; Huang, H. Z. ; Huang, T. ; Huang, B. ; Humanic, T. J. ; Huo, P. ; Igo, G. ; Jacobs, W. W. ; Jentsch, A. ; Jia, J. ; Jiang, K. ; Jowzaee, S. ; Judd, E. G. ; Kabana, S. ; Kalinkin, D. ; Kang, K. ; Kapukchyan, D. ; Kauder, K. ; Ke, H. W. ; Keane, D. ; Kechechyan, A. ; Khan, Z. ; Kikoła, D. P. ; Kim, C. ; Kisel, I. ; Kisiel, A. ; Kochenda, L. ; Kocmanek, M. ; Kollegger, T. ; Kosarzewski, L. K. ; Kraishan, A. F. ; Krauth, L. ; Kravtsov, P. ; Krueger, K. ; Kulathunga, N. ; Kumar, L. ; Kvapil, J. ; Kwasizur, J. H. ; Lacey, R. ; Landgraf, J. M. ; Landry, K. D. ; Lauret, J. ; Lebedev, A. ; Lednicky, R. ; Lee, J. H. ; Li, W. ; Li, C. ; Li, X. ; Li, Y. ; Lidrych, J. ; Lin, T. ; Lisa, M. A. ; Liu, Y. ; Liu, H. ; Liu, F. ; Liu, P. ; Ljubicic, T. ; Llope, W. J. ; Lomnitz, M. ; Longacre, R. S. ; Luo, X. ; Luo, S. ; Ma, L. ; Ma, Y. G. ; Ma, G. L. ; Ma, R. ; Magdy, N. ; Majka, R. ; Mallick, D. ; Margetis, S. ; Markert, C. ; Matis, H. S. ; Mayes, D. ; Meehan, K. ; Mei, J. C. ; Miller, Z. W. ; Minaev, N. G. ; Mioduszewski, S. ; Mishra, D. ; Mizuno, S. ; Mohanty, B. ; Mondal, M. M. ; Morozov, D. A. ; Mustafa, M. K. ; Nasim, Md ; Nayak, T. K. ; Nelson, J. M. ; Nemes, D. B. ; Nie, M. ; Nigmatkulov, G. ; Niida, T. ; Nogach, L. V. ; Nonaka, T. ; Nurushev, S. B. ; Odyniec, G. ; Ogawa, A. ; Oh, K. ; Okorokov, V. A. ; Olvitt, D. ; Page, B. S. ; Pak, R. ; Pandit, Y. ; Panebratsev, Y. ; Pawlik, B. ; Pei, H. ; Perkins, C. ; Pluta, J. ; Poniatowska, K. ; Porter, J. ; Posik, M. ; Pruthi, N. K. ; Przybycien, M. ; Putschke, J. ; Quintero, A. ; Ramachandran, S. ; Ray, R. L. ; Reed, R. ; Rehbein, M. J. ; Ritter, H. G. ; Roberts, J. B. ; Rogachevskiy, O. V. ; Romero, J. L. ; Roth, J. D. ; Ruan, L. ; Rusnak, J. ; Rusnakova, O. ; Sahoo, N. R. ; Sahu, P. K. ; Salur, S. ; Sandweiss, J. ; Saur, M. ; Schambach, J. ; Schmah, A. M. ; Schmidke, W. B. ; Schmitz, N. ; Schweid, B. R. ; Seger, Janet E. ; Sergeeva, M. ; Seto, R. ; Seyboth, P. ; Shah, N. ; Shahaliev, E. ; Shanmuganathan, P. V. ; Shao, M. ; Shen, W. Q. ; Shi, S. S. ; Shi, Z. ; Shou, Q. Y. ; Sichtermann, E. P. ; Sikora, R. ; Simko, M. ; Singha, S. ; Skoby, M. J. ; Smirnov, N. ; Smirnov, D. ; Solyst, W. ; Sorensen, P. ; Spinka, H. M. ; Srivastava, B. ; Stanislaus, T. D.S. ; Stewart, D. J. ; Strikhanov, M. ; Stringfellow, B. ; Suaide, A. A.P. ; Sugiura, T. ; Sumbera, M. ; Summa, B. ; Sun, X. ; Sun, X. M. ; Sun, Y. ; Surrow, B. ; Svirida, D. N. ; Tang, Z. ; Tang, A. H. ; Taranenko, A. ; Tarnowsky, T. ; Tawfik, A. ; Thäder, J. ; Thomas, J. H. ; Timmins, A. R. ; Tlusty, D. ; Todoroki, T. ; Tokarev, M. ; Trentalange, S. ; Tribble, R. E. ; Tribedy, P. ; Tripathy, S. K. ; Trzeciak, B. A. ; Tsai, O. D. ; Tu, B. ; Ullrich, T. ; Underwood, D. G. ; Upsal, I. ; Van Buren, G. ; van Nieuwenhuizen, G. ; Vasiliev, A. N. ; Videbæk, F. ; Vokal, S. ; Voloshin, S. A. ; Vossen, A. ; Wang, G. ; Wang, Y. ; Wang, Y. ; Wang, F. ; Webb, G. ; Webb, J. C. ; Wen, L. ; Westfall, G. D. ; Wieman, H. ; Wissink, S. W. ; Witt, R. ; Wu, Y. ; Xiao, Z. G. ; Xie, G. ; Xie, W. ; Xu, N. ; Xu, Y. F. ; Xu, Q. H. ; Xu, Z. ; Yang, Y. ; Yang, C. ; Yang, S. ; Yang, Q. ; Ye, Z. ; Yi, L. ; Yip, K. ; Yoo, I. K. ; Zbroszczyk, H. ; Zha, W. ; Zhang, J. B. ; Zhang, J. ; Zhang, S. ; Zhang, J. ; Zhang, S. ; Zhang, Z. ; Zhang, Y. ; Zhang, L. ; Zhang, X. P. ; Zhao, J. ; Zhong, C. ; Zhou, C. ; Zhou, L. ; Zhu, X. ; Zhu, Z. ; Zyzak, M. / Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p + p collisions at s=500 GeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 ; Vol. 780. pp. 332-339.
@article{2018897ccaf241ed8bde82f3be563f82,
title = "Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p↑ + p collisions at s=500 GeV",
abstract = "The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons. This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.",
author = "L. Adamczyk and Adams, {J. R.} and Adkins, {J. K.} and G. Agakishiev and Aggarwal, {M. M.} and Z. Ahammed and Ajitanand, {N. N.} and I. Alekseev and Anderson, {D. M.} and R. Aoyama and A. Aparin and D. Arkhipkin and Aschenauer, {E. C.} and Ashraf, {M. U.} and A. Attri and Averichev, {G. S.} and V. Bairathi and K. Barish and A. Behera and R. Bellwied and A. Bhasin and Bhati, {A. K.} and P. Bhattarai and J. Bielcik and J. Bielcikova and Bland, {L. C.} and Bordyuzhin, {I. G.} and J. Bouchet and Brandenburg, {J. D.} and Brandin, {A. V.} and D. Brown and J. Bryslawskyj and I. Bunzarov and J. Butterworth and H. Caines and {Calder{\'o}n de la Barca S{\'a}nchez}, M. and Campbell, {J. M.} and D. Cebra and I. Chakaberia and P. Chaloupka and Z. Chang and N. Chankova-Bunzarova and A. Chatterjee and S. Chattopadhyay and Chen, {J. H.} and X. Chen and X. Chen and J. Cheng and Cherney, {Michael G.} and W. Christie and G. Contin and Crawford, {H. J.} and Dedovich, {T. G.} and J. Deng and Deppner, {I. M.} and Derevschikov, {A. A.} and L. Didenko and C. Dilks and X. Dong and Drachenberg, {J. L.} and Draper, {J. E.} and Dunlop, {J. C.} and Efimov, {L. G.} and N. Elsey and J. Engelage and G. Eppley and R. Esha and S. Esumi and O. Evdokimov and J. Ewigleben and O. Eyser and R. Fatemi and S. Fazio and P. Federic and P. Federicova and J. Fedorisin and Z. Feng and P. Filip and E. Finch and Y. Fisyak and Flores, {C. E.} and J. Fujita and L. Fulek and Gagliardi, {C. A.} and F. Geurts and A. Gibson and M. Girard and D. Grosnick and Gunarathne, {D. S.} and Y. Guo and A. Gupta and W. Guryn and Hamad, {A. I.} and A. Hamed and A. Harlenderova and Harris, {J. W.} and L. He and S. Heppelmann and S. Heppelmann and N. Herrmann and A. Hirsch and S. Horvat and X. Huang and Huang, {H. Z.} and T. Huang and B. Huang and Humanic, {T. J.} and P. Huo and G. Igo and Jacobs, {W. W.} and A. Jentsch and J. Jia and K. Jiang and S. Jowzaee and Judd, {E. G.} and S. Kabana and D. Kalinkin and K. Kang and D. Kapukchyan and K. Kauder and Ke, {H. W.} and D. Keane and A. Kechechyan and Z. Khan and Kikoła, {D. P.} and C. Kim and I. Kisel and A. Kisiel and L. Kochenda and M. Kocmanek and T. Kollegger and Kosarzewski, {L. K.} and Kraishan, {A. F.} and L. Krauth and P. Kravtsov and K. Krueger and N. Kulathunga and L. Kumar and J. Kvapil and Kwasizur, {J. H.} and R. Lacey and Landgraf, {J. M.} and Landry, {K. D.} and J. Lauret and A. Lebedev and R. Lednicky and Lee, {J. H.} and W. Li and C. Li and X. Li and Y. Li and J. Lidrych and T. Lin and Lisa, {M. A.} and Y. Liu and H. Liu and F. Liu and P. Liu and T. Ljubicic and Llope, {W. J.} and M. Lomnitz and Longacre, {R. S.} and X. Luo and S. Luo and L. Ma and Ma, {Y. G.} and Ma, {G. L.} and R. Ma and N. Magdy and R. Majka and D. Mallick and S. Margetis and C. Markert and Matis, {H. S.} and D. Mayes and K. Meehan and Mei, {J. C.} and Miller, {Z. W.} and Minaev, {N. G.} and S. Mioduszewski and D. Mishra and S. Mizuno and B. Mohanty and Mondal, {M. M.} and Morozov, {D. A.} and Mustafa, {M. K.} and Md Nasim and Nayak, {T. K.} and Nelson, {J. M.} and Nemes, {D. B.} and M. Nie and G. Nigmatkulov and T. Niida and Nogach, {L. V.} and T. Nonaka and Nurushev, {S. B.} and G. Odyniec and A. Ogawa and K. Oh and Okorokov, {V. A.} and D. Olvitt and Page, {B. S.} and R. Pak and Y. Pandit and Y. Panebratsev and B. Pawlik and H. Pei and C. Perkins and J. Pluta and K. Poniatowska and J. Porter and M. Posik and Pruthi, {N. K.} and M. Przybycien and J. Putschke and A. Quintero and S. Ramachandran and Ray, {R. L.} and R. Reed and Rehbein, {M. J.} and Ritter, {H. G.} and Roberts, {J. B.} and Rogachevskiy, {O. V.} and Romero, {J. L.} and Roth, {J. D.} and L. Ruan and J. Rusnak and O. Rusnakova and Sahoo, {N. R.} and Sahu, {P. K.} and S. Salur and J. Sandweiss and M. Saur and J. Schambach and Schmah, {A. M.} and Schmidke, {W. B.} and N. Schmitz and Schweid, {B. R.} and Seger, {Janet E.} and M. Sergeeva and R. Seto and P. Seyboth and N. Shah and E. Shahaliev and Shanmuganathan, {P. V.} and M. Shao and Shen, {W. Q.} and Shi, {S. S.} and Z. Shi and Shou, {Q. Y.} and Sichtermann, {E. P.} and R. Sikora and M. Simko and S. Singha and Skoby, {M. J.} and N. Smirnov and D. Smirnov and W. Solyst and P. Sorensen and Spinka, {H. M.} and B. Srivastava and Stanislaus, {T. D.S.} and Stewart, {D. J.} and M. Strikhanov and B. Stringfellow and Suaide, {A. A.P.} and T. Sugiura and M. Sumbera and B. Summa and X. Sun and Sun, {X. M.} and Y. Sun and B. Surrow and Svirida, {D. N.} and Z. Tang and Tang, {A. H.} and A. Taranenko and T. Tarnowsky and A. Tawfik and J. Th{\"a}der and Thomas, {J. H.} and Timmins, {A. R.} and D. Tlusty and T. Todoroki and M. Tokarev and S. Trentalange and Tribble, {R. E.} and P. Tribedy and Tripathy, {S. K.} and Trzeciak, {B. A.} and Tsai, {O. D.} and B. Tu and T. Ullrich and Underwood, {D. G.} and I. Upsal and {Van Buren}, G. and {van Nieuwenhuizen}, G. and Vasiliev, {A. N.} and F. Videb{\ae}k and S. Vokal and Voloshin, {S. A.} and A. Vossen and G. Wang and Y. Wang and Y. Wang and F. Wang and G. Webb and Webb, {J. C.} and L. Wen and Westfall, {G. D.} and H. Wieman and Wissink, {S. W.} and R. Witt and Y. Wu and Xiao, {Z. G.} and G. Xie and W. Xie and N. Xu and Xu, {Y. F.} and Xu, {Q. H.} and Z. Xu and Y. Yang and C. Yang and S. Yang and Q. Yang and Z. Ye and L. Yi and K. Yip and Yoo, {I. K.} and H. Zbroszczyk and W. Zha and Zhang, {J. B.} and J. Zhang and S. Zhang and J. Zhang and S. Zhang and Z. Zhang and Y. Zhang and L. Zhang and Zhang, {X. P.} and J. Zhao and C. Zhong and C. Zhou and L. Zhou and X. Zhu and Z. Zhu and M. Zyzak",
year = "2018",
month = "5",
day = "10",
doi = "10.1016/j.physletb.2018.02.069",
language = "English (US)",
volume = "780",
pages = "332--339",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

TY - JOUR

T1 - Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p↑ + p collisions at s=500 GeV

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Ajitanand, N. N.

AU - Alekseev, I.

AU - Anderson, D. M.

AU - Aoyama, R.

AU - Aparin, A.

AU - Arkhipkin, D.

AU - Aschenauer, E. C.

AU - Ashraf, M. U.

AU - Attri, A.

AU - Averichev, G. S.

AU - Bairathi, V.

AU - Barish, K.

AU - Behera, A.

AU - Bellwied, R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bhattarai, P.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Bouchet, J.

AU - Brandenburg, J. D.

AU - Brandin, A. V.

AU - Brown, D.

AU - Bryslawskyj, J.

AU - Bunzarov, I.

AU - Butterworth, J.

AU - Caines, H.

AU - Calderón de la Barca Sánchez, M.

AU - Campbell, J. M.

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chang, Z.

AU - Chankova-Bunzarova, N.

AU - Chatterjee, A.

AU - Chattopadhyay, S.

AU - Chen, J. H.

AU - Chen, X.

AU - Chen, X.

AU - Cheng, J.

AU - Cherney, Michael G.

AU - Christie, W.

AU - Contin, G.

AU - Crawford, H. J.

AU - Dedovich, T. G.

AU - Deng, J.

AU - Deppner, I. M.

AU - Derevschikov, A. A.

AU - Didenko, L.

AU - Dilks, C.

AU - Dong, X.

AU - Drachenberg, J. L.

AU - Draper, J. E.

AU - Dunlop, J. C.

AU - Efimov, L. G.

AU - Elsey, N.

AU - Engelage, J.

AU - Eppley, G.

AU - Esha, R.

AU - Esumi, S.

AU - Evdokimov, O.

AU - Ewigleben, J.

AU - Eyser, O.

AU - Fatemi, R.

AU - Fazio, S.

AU - Federic, P.

AU - Federicova, P.

AU - Fedorisin, J.

AU - Feng, Z.

AU - Filip, P.

AU - Finch, E.

AU - Fisyak, Y.

AU - Flores, C. E.

AU - Fujita, J.

AU - Fulek, L.

AU - Gagliardi, C. A.

AU - Geurts, F.

AU - Gibson, A.

AU - Girard, M.

AU - Grosnick, D.

AU - Gunarathne, D. S.

AU - Guo, Y.

AU - Gupta, A.

AU - Guryn, W.

AU - Hamad, A. I.

AU - Hamed, A.

AU - Harlenderova, A.

AU - Harris, J. W.

AU - He, L.

AU - Heppelmann, S.

AU - Heppelmann, S.

AU - Herrmann, N.

AU - Hirsch, A.

AU - Horvat, S.

AU - Huang, X.

AU - Huang, H. Z.

AU - Huang, T.

AU - Huang, B.

AU - Humanic, T. J.

AU - Huo, P.

AU - Igo, G.

AU - Jacobs, W. W.

AU - Jentsch, A.

AU - Jia, J.

AU - Jiang, K.

AU - Jowzaee, S.

AU - Judd, E. G.

AU - Kabana, S.

AU - Kalinkin, D.

AU - Kang, K.

AU - Kapukchyan, D.

AU - Kauder, K.

AU - Ke, H. W.

AU - Keane, D.

AU - Kechechyan, A.

AU - Khan, Z.

AU - Kikoła, D. P.

AU - Kim, C.

AU - Kisel, I.

AU - Kisiel, A.

AU - Kochenda, L.

AU - Kocmanek, M.

AU - Kollegger, T.

AU - Kosarzewski, L. K.

AU - Kraishan, A. F.

AU - Krauth, L.

AU - Kravtsov, P.

AU - Krueger, K.

AU - Kulathunga, N.

AU - Kumar, L.

AU - Kvapil, J.

AU - Kwasizur, J. H.

AU - Lacey, R.

AU - Landgraf, J. M.

AU - Landry, K. D.

AU - Lauret, J.

AU - Lebedev, A.

AU - Lednicky, R.

AU - Lee, J. H.

AU - Li, W.

AU - Li, C.

AU - Li, X.

AU - Li, Y.

AU - Lidrych, J.

AU - Lin, T.

AU - Lisa, M. A.

AU - Liu, Y.

AU - Liu, H.

AU - Liu, F.

AU - Liu, P.

AU - Ljubicic, T.

AU - Llope, W. J.

AU - Lomnitz, M.

AU - Longacre, R. S.

AU - Luo, X.

AU - Luo, S.

AU - Ma, L.

AU - Ma, Y. G.

AU - Ma, G. L.

AU - Ma, R.

AU - Magdy, N.

AU - Majka, R.

AU - Mallick, D.

AU - Margetis, S.

AU - Markert, C.

AU - Matis, H. S.

AU - Mayes, D.

AU - Meehan, K.

AU - Mei, J. C.

AU - Miller, Z. W.

AU - Minaev, N. G.

AU - Mioduszewski, S.

AU - Mishra, D.

AU - Mizuno, S.

AU - Mohanty, B.

AU - Mondal, M. M.

AU - Morozov, D. A.

AU - Mustafa, M. K.

AU - Nasim, Md

AU - Nayak, T. K.

AU - Nelson, J. M.

AU - Nemes, D. B.

AU - Nie, M.

AU - Nigmatkulov, G.

AU - Niida, T.

AU - Nogach, L. V.

AU - Nonaka, T.

AU - Nurushev, S. B.

AU - Odyniec, G.

AU - Ogawa, A.

AU - Oh, K.

AU - Okorokov, V. A.

AU - Olvitt, D.

AU - Page, B. S.

AU - Pak, R.

AU - Pandit, Y.

AU - Panebratsev, Y.

AU - Pawlik, B.

AU - Pei, H.

AU - Perkins, C.

AU - Pluta, J.

AU - Poniatowska, K.

AU - Porter, J.

AU - Posik, M.

AU - Pruthi, N. K.

AU - Przybycien, M.

AU - Putschke, J.

AU - Quintero, A.

AU - Ramachandran, S.

AU - Ray, R. L.

AU - Reed, R.

AU - Rehbein, M. J.

AU - Ritter, H. G.

AU - Roberts, J. B.

AU - Rogachevskiy, O. V.

AU - Romero, J. L.

AU - Roth, J. D.

AU - Ruan, L.

AU - Rusnak, J.

AU - Rusnakova, O.

AU - Sahoo, N. R.

AU - Sahu, P. K.

AU - Salur, S.

AU - Sandweiss, J.

AU - Saur, M.

AU - Schambach, J.

AU - Schmah, A. M.

AU - Schmidke, W. B.

AU - Schmitz, N.

AU - Schweid, B. R.

AU - Seger, Janet E.

AU - Sergeeva, M.

AU - Seto, R.

AU - Seyboth, P.

AU - Shah, N.

AU - Shahaliev, E.

AU - Shanmuganathan, P. V.

AU - Shao, M.

AU - Shen, W. Q.

AU - Shi, S. S.

AU - Shi, Z.

AU - Shou, Q. Y.

AU - Sichtermann, E. P.

AU - Sikora, R.

AU - Simko, M.

AU - Singha, S.

AU - Skoby, M. J.

AU - Smirnov, N.

AU - Smirnov, D.

AU - Solyst, W.

AU - Sorensen, P.

AU - Spinka, H. M.

AU - Srivastava, B.

AU - Stanislaus, T. D.S.

AU - Stewart, D. J.

AU - Strikhanov, M.

AU - Stringfellow, B.

AU - Suaide, A. A.P.

AU - Sugiura, T.

AU - Sumbera, M.

AU - Summa, B.

AU - Sun, X.

AU - Sun, X. M.

AU - Sun, Y.

AU - Surrow, B.

AU - Svirida, D. N.

AU - Tang, Z.

AU - Tang, A. H.

AU - Taranenko, A.

AU - Tarnowsky, T.

AU - Tawfik, A.

AU - Thäder, J.

AU - Thomas, J. H.

AU - Timmins, A. R.

AU - Tlusty, D.

AU - Todoroki, T.

AU - Tokarev, M.

AU - Trentalange, S.

AU - Tribble, R. E.

AU - Tribedy, P.

AU - Tripathy, S. K.

AU - Trzeciak, B. A.

AU - Tsai, O. D.

AU - Tu, B.

AU - Ullrich, T.

AU - Underwood, D. G.

AU - Upsal, I.

AU - Van Buren, G.

AU - van Nieuwenhuizen, G.

AU - Vasiliev, A. N.

AU - Videbæk, F.

AU - Vokal, S.

AU - Voloshin, S. A.

AU - Vossen, A.

AU - Wang, G.

AU - Wang, Y.

AU - Wang, Y.

AU - Wang, F.

AU - Webb, G.

AU - Webb, J. C.

AU - Wen, L.

AU - Westfall, G. D.

AU - Wieman, H.

AU - Wissink, S. W.

AU - Witt, R.

AU - Wu, Y.

AU - Xiao, Z. G.

AU - Xie, G.

AU - Xie, W.

AU - Xu, N.

AU - Xu, Y. F.

AU - Xu, Q. H.

AU - Xu, Z.

AU - Yang, Y.

AU - Yang, C.

AU - Yang, S.

AU - Yang, Q.

AU - Ye, Z.

AU - Yi, L.

AU - Yip, K.

AU - Yoo, I. K.

AU - Zbroszczyk, H.

AU - Zha, W.

AU - Zhang, J. B.

AU - Zhang, J.

AU - Zhang, S.

AU - Zhang, J.

AU - Zhang, S.

AU - Zhang, Z.

AU - Zhang, Y.

AU - Zhang, L.

AU - Zhang, X. P.

AU - Zhao, J.

AU - Zhong, C.

AU - Zhou, C.

AU - Zhou, L.

AU - Zhu, X.

AU - Zhu, Z.

AU - Zyzak, M.

PY - 2018/5/10

Y1 - 2018/5/10

N2 - The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons. This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.

AB - The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons. This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.

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U2 - 10.1016/j.physletb.2018.02.069

DO - 10.1016/j.physletb.2018.02.069

M3 - Article

AN - SCOPUS:85043576764

VL - 780

SP - 332

EP - 339

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -