An update from STAR - Using strangeness to probe relativistic heavy ion collisions

STAR Collaboration

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An overview of the strangeness measurements made by the STAR collaboration at RHIC for Au-Au collisions at √SN N = 130 200 GeV plus p-p collisions at √SN N = 200 GeV is presented. A wealth of information has been generated on the kinematics and scale of strange particle production by this experiment. When viewed in combination a picture emerges of particles demonstrating a surprisingly high degree of collective motion, suggestive of strong internal pressure within the source which builds up rapidly. The non-resonance yields are consistent with statistical hadron formation. Although there appears to be a rapid decoupling of the source, resonance particle measurements show signs of rescattering during the hadronic phase. Meanwhile the observed suppression of high momentum probes and their large azimuthal asymmetry indicate that this hot dense matter has significant interactions with particles moving through it.

Original languageEnglish
JournalJournal of Physics G: Nuclear and Particle Physics
Volume30
Issue number1
DOIs
StatePublished - Jan 1 2004

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strangeness
ionic collisions
probes
nonresonance
collisions
internal pressure
particle production
decoupling
kinematics
asymmetry
retarding
momentum
interactions

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

An update from STAR - Using strangeness to probe relativistic heavy ion collisions. / STAR Collaboration.

In: Journal of Physics G: Nuclear and Particle Physics, Vol. 30, No. 1, 01.01.2004.

Research output: Contribution to journalArticle

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abstract = "An overview of the strangeness measurements made by the STAR collaboration at RHIC for Au-Au collisions at √SN N = 130 200 GeV plus p-p collisions at √SN N = 200 GeV is presented. A wealth of information has been generated on the kinematics and scale of strange particle production by this experiment. When viewed in combination a picture emerges of particles demonstrating a surprisingly high degree of collective motion, suggestive of strong internal pressure within the source which builds up rapidly. The non-resonance yields are consistent with statistical hadron formation. Although there appears to be a rapid decoupling of the source, resonance particle measurements show signs of rescattering during the hadronic phase. Meanwhile the observed suppression of high momentum probes and their large azimuthal asymmetry indicate that this hot dense matter has significant interactions with particles moving through it.",
author = "{STAR Collaboration} and Helen Caines and J. Adams and C. Adler and Z. Ahammed and J. Amonett and Anderson, {B. D.} and M. Anderson and D. Arkhipkin and Averichev, {G. S.} and J. Balewski and O. Barannikova and Barnby, {L. S.} and J. Baudot and S. Bekele and Belaga, {V. V.} and R. Bellwied and J. Berger and H. Bichsel and A. Billmeier and Bland, {L. C.} and Blyth, {C. O.} and Bonner, {B. E.} and A. Boucham and A. Brandin and A. Bravar and Cadman, {R. V.} and Cai, {X. Z.} and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and A. Cardenas and J. Carroll and J. Castillo and M. Castro and D. Cebra and P. Chaloupka and S. Chattopadhyay and Chen, {H. F.} and Y. Chen and Chernenko, {S. P.} and Cherney, {Michael G.} and A. Chikanian and B. Choi and W. Christie and Coffin, {J. P.} and Cormier, {T. M.} and Corral, {M. M.} and Cramer, {J. G.} and Crawford, {H. J.} and Derevschikov, {A. A.} and L. Didenko and Seger, {Janet E.}",
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AU - STAR Collaboration

AU - Caines, Helen

AU - Adams, J.

AU - Adler, C.

AU - Ahammed, Z.

AU - Amonett, J.

AU - Anderson, B. D.

AU - Anderson, M.

AU - Arkhipkin, D.

AU - Averichev, G. S.

AU - Balewski, J.

AU - Barannikova, O.

AU - Barnby, L. S.

AU - Baudot, J.

AU - Bekele, S.

AU - Belaga, V. V.

AU - Bellwied, R.

AU - Berger, J.

AU - Bichsel, H.

AU - Billmeier, A.

AU - Bland, L. C.

AU - Blyth, C. O.

AU - Bonner, B. E.

AU - Boucham, A.

AU - Brandin, A.

AU - Bravar, A.

AU - Cadman, R. V.

AU - Cai, X. Z.

AU - Calderón De La Barca Sánchez, M.

AU - Cardenas, A.

AU - Carroll, J.

AU - Castillo, J.

AU - Castro, M.

AU - Cebra, D.

AU - Chaloupka, P.

AU - Chattopadhyay, S.

AU - Chen, H. F.

AU - Chen, Y.

AU - Chernenko, S. P.

AU - Cherney, Michael G.

AU - Chikanian, A.

AU - Choi, B.

AU - Christie, W.

AU - Coffin, J. P.

AU - Cormier, T. M.

AU - Corral, M. M.

AU - Cramer, J. G.

AU - Crawford, H. J.

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AU - Didenko, L.

AU - Seger, Janet E.

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N2 - An overview of the strangeness measurements made by the STAR collaboration at RHIC for Au-Au collisions at √SN N = 130 200 GeV plus p-p collisions at √SN N = 200 GeV is presented. A wealth of information has been generated on the kinematics and scale of strange particle production by this experiment. When viewed in combination a picture emerges of particles demonstrating a surprisingly high degree of collective motion, suggestive of strong internal pressure within the source which builds up rapidly. The non-resonance yields are consistent with statistical hadron formation. Although there appears to be a rapid decoupling of the source, resonance particle measurements show signs of rescattering during the hadronic phase. Meanwhile the observed suppression of high momentum probes and their large azimuthal asymmetry indicate that this hot dense matter has significant interactions with particles moving through it.

AB - An overview of the strangeness measurements made by the STAR collaboration at RHIC for Au-Au collisions at √SN N = 130 200 GeV plus p-p collisions at √SN N = 200 GeV is presented. A wealth of information has been generated on the kinematics and scale of strange particle production by this experiment. When viewed in combination a picture emerges of particles demonstrating a surprisingly high degree of collective motion, suggestive of strong internal pressure within the source which builds up rapidly. The non-resonance yields are consistent with statistical hadron formation. Although there appears to be a rapid decoupling of the source, resonance particle measurements show signs of rescattering during the hadronic phase. Meanwhile the observed suppression of high momentum probes and their large azimuthal asymmetry indicate that this hot dense matter has significant interactions with particles moving through it.

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