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

doi:10.1103/PhysRevC.70.041901

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

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from ¹⁹⁷Au+¹⁹⁷Au collisions at √S_NN=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<p_t<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 language	English
Article number	041901
Pages (from-to)	041901-1-041901-6
Journal	Physical Review C - Nuclear Physics
Volume	70
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.70.041901
State	Published - Oct 1 2004

Bibliographical note

Funding Information:
We thank Dr. W. Busza, Dr. M. Gyulassy, and Dr. V. Topor-Pop for exciting discussions. We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; SFOM of the Czech Republic, DAE, DST, and CSIR of the Government of India; and the Swiss NSF.

Publisher Copyright:
© 2004 The American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevC.70.041901

Cite this

@article{8604e2e0de874bef8b70ccd2fb180f32,

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 = "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 R. Fatemi",

note = "Funding Information: We thank Dr. W. Busza, Dr. M. Gyulassy, and Dr. V. Topor-Pop for exciting discussions. We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; SFOM of the Czech Republic, DAE, DST, and CSIR of the Government of India; and the Swiss NSF. Publisher Copyright: {\textcopyright} 2004 The American Physical Society.",

year = "2004",

month = oct,

day = "1",

doi = "10.1103/PhysRevC.70.041901",

language = "English",

volume = "70",

pages = "041901--1--041901--6",

number = "4",

}

TY - JOUR

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

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 - Fatemi, R.

N1 - Funding Information: We thank Dr. W. Busza, Dr. M. Gyulassy, and Dr. V. Topor-Pop for exciting discussions. We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; SFOM of the Czech Republic, DAE, DST, and CSIR of the Government of India; and the Swiss NSF. Publisher Copyright: © 2004 The American Physical Society.

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

AN - SCOPUS:11144334151

SN - 0556-2813

VL - 70

SP - 041901-1-041901-6

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 041901

ER -