Rapidity and centrality dependence of proton and antiproton production from197Au+197Au collisions at √SNN=130 GeV

STAR Collaboration

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from 197Au+197Au collisions at √SNN=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of |y| <0.5 and 0.35<pt<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within |y|<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.

Original languageEnglish (US)
Article number041901
JournalPhysical Review C - Nuclear Physics
Volume70
Issue number4
DOIs
StatePublished - Oct 1 2004

Fingerprint

antiprotons
mass distribution
transverse momentum
collisions
protons
expansion
heavy ions
momentum

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

@article{9dd0cc34a6264b4c9c32f478222cb703,
title = "Rapidity and centrality dependence of proton and antiproton production from197Au+197Au collisions at √SNN=130 GeV",
abstract = "We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from 197Au+197Au collisions at √SNN=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of |y| <0.5 and 0.35t<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within |y|<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.",
author = "{STAR Collaboration} and J. Adams and C. Adler and Aggarwal, {M. M.} and Z. Ahammed and J. Amonett and Anderson, {B. D.} and M. Anderson and D. Arkhipkin and Averichev, {G. S.} and Badyal, {S. K.} 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 Bezverkhny, {B. I.} and S. Bhardwaj and P. Bhaskar and Bhati, {A. K.} and H. Bichsel and A. Billmeier and Bland, {L. C.} and Blyth, {C. O.} and Bonner, {B. E.} and M. Botje and A. Boucham and A. Brandin and A. Bravar and Cadman, {R. V.} and Cai, {X. Z.} and H. Caines 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 M. Cherney and A. Chikanian and B. Choi and W. Christie and Steven Heppelmann",
year = "2004",
month = "10",
day = "1",
doi = "10.1103/PhysRevC.70.041901",
language = "English (US)",
volume = "70",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "4",

}

Rapidity and centrality dependence of proton and antiproton production from197Au+197Au collisions at √SNN=130 GeV. / STAR Collaboration.

In: Physical Review C - Nuclear Physics, Vol. 70, No. 4, 041901, 01.10.2004.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Rapidity and centrality dependence of proton and antiproton production from197Au+197Au collisions at √SNN=130 GeV

AU - STAR Collaboration

AU - Adams, J.

AU - Adler, C.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Amonett, J.

AU - Anderson, B. D.

AU - Anderson, M.

AU - Arkhipkin, D.

AU - Averichev, G. S.

AU - Badyal, S. K.

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 - Bezverkhny, B. I.

AU - Bhardwaj, S.

AU - Bhaskar, P.

AU - Bhati, A. K.

AU - Bichsel, H.

AU - Billmeier, A.

AU - Bland, L. C.

AU - Blyth, C. O.

AU - Bonner, B. E.

AU - Botje, M.

AU - Boucham, A.

AU - Brandin, A.

AU - Bravar, A.

AU - Cadman, R. V.

AU - Cai, X. Z.

AU - Caines, H.

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, M.

AU - Chikanian, A.

AU - Choi, B.

AU - Christie, W.

AU - Heppelmann, Steven

PY - 2004/10/1

Y1 - 2004/10/1

N2 - We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from 197Au+197Au collisions at √SNN=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of |y| <0.5 and 0.35t<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within |y|<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.

AB - We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from 197Au+197Au collisions at √SNN=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of |y| <0.5 and 0.35t<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within |y|<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.

UR - http://www.scopus.com/inward/record.url?scp=11144334151&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11144334151&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.70.041901

DO - 10.1103/PhysRevC.70.041901

M3 - Article

VL - 70

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 4

M1 - 041901

ER -