Antiparticle to particle ratios and identified hadron spectra in Cu plus Cu and Au plus Au collisions

被引：4

作者：

Veres, Gabor I.

机构：

[1] MIT, Cambridge, MA 02139 USA

[2] Eotvos Lorand Univ, H-1117 Budapest, Hungary

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2007年 / 34卷 / 08期

关键词：

D O I：

10.1088/0954-3899/34/8/S165

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

New results on antiparticle to particle ratios in Cu+Cu and Au+Au collisions at root(NN)-N-S = 62.4 and 200 GeV from the PHOBOS experiment at RHIC are presented. Transverse momentum spectra of pions, kaons, protons and antiprotons from Au+Au collisions at root(NN)-N-S = 62.4 GeV close to mid-rapidity are also discussed. Antiparticle to particle ratios are found to be remarkably independent of the collision centrality in both colliding systems. The collision energy dependence of the (p) over bar /p ratios is very significant in Cu+Cu collisions. Baryons are found to have substantially harder transverse momentum spectra than mesons. The p(T) region in which the proton to pion ratio reaches unity in central Au+Au collisions at root(NN)-N-S = 62.4 GeV fits into a smooth trend as a function of collision energy. The observed particle yields at very low p(T) are comparable to extrapolations from higher p(T) for kaons, protons and antiprotons. The net proton yield at mid-rapidity is found to be proportional to the number of participant nucleons in Au+Au collisions at 62.4 and 200 GeV energies.

引用

页码：S1103 / S1107

页数：5

共 50 条

[41] Parameterization and Study of Elliptic Flow Coefficient for Au plus Au and Cu plus Cu Collisions at RHIC energy 200 GeV/A
Kumar, Somani Ajit
Bright, Keswani
Sudhir, Bhardwaj
Ashish, Agnihotri
2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2017), 2018, 1953
[42] Identified charged particle distributions in Au plus Au collisions at √sNN=9.2 GeV
Bashir, Inam-ul
Uddin, Saeed
Bhat, Riyaz Ahmed
Bashir, Waseem
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2015, 30 (24):
[43] Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at √sNN=200 GeV
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Alekseev, I.
Alford, J.
Anderson, B. D.
Anson, C. D.
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Barnby, L. S.
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.
Braidot, E.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Codrington, M. J. M.
PHYSICAL REVIEW LETTERS, 2012, 108 (06)
[44] Reconstructed Jet Measurements in p plus p, d plus Au and Cu plus Au collisions using PHENIX
Patel, Milap
10TH INTERNATIONAL CONFERENCE ON HARD AND ELECTROMAGNETIC PROBES OF HIGH-ENERGY NUCLEAR COLLISIONS, HARDPROBES2020, 2021,
[45] Anisotropic flow in √sNN=200 GeV Cu+Cu and Au plus Au collisions at PHENIX
Masui, H.
NUCLEAR PHYSICS A, 2006, 774 : 511 - 514
[46] Identified charged-hadron production in p + Al, 3He+Au, and Cu plus v Au collisions at √sNN=200 GeV and in U plus U collisions at √sNN=193 GeV
Abdulameer, N. J.
Acharya, U.
Adare, A.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Akimoto, R.
Alexander, J.
Alfred, M.
Andrieux, V.
Aoki, K.
Apadula, N.
Asano, H.
Atomssa, E. T.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Bai, X.
Bandara, N. S.
Bannier, B.
Barish, K. N.
Bathe, S.
Baublis, V.
Baumann, C.
Baumgart, S.
Bazilevsky, A.
Beaumier, M.
Beckman, S.
Belmont, R.
Berdnikov, A.
Berdnikov, Y.
Bichon, L.
Black, D.
Blankenship, B.
Blau, D. S.
Bok, J. S.
Borisov, V.
Boyle, K.
Brooks, M. L.
Bryslawskyj, J.
Buesching, H.
Bumazhnov, V.
Butsyk, S.
Campbell, S.
Roman, V. Canoa
Cervantes, R.
Chen, C. -H.
Chen, D.
Chiu, M.
PHYSICAL REVIEW C, 2024, 109 (05)
[47] System size dependence of cluster properties from two-particle angular correlations in Cu plus Cu and Au plus Au collisions at √sNN=200 GeV
Alver, B.
Back, B.
Baker, M. D.
Ballintijn, M.
Barton, D. S.
Betts, R. R.
Bindel, R.
Busza, W.
Chai, Z.
Chetluru, V.
Garcia, E.
Gburek, T.
Gulbrandsen, K.
Hamblen, J.
Harnarine, I.
Henderson, C.
Hofman, D. J.
Hollis, R. S.
Holynski, R.
Holzman, B.
Iordanova, A.
Kane, J. L.
Kulinich, P.
Kuo, C. M.
Li, W.
Lin, W. T.
Loizides, C.
Manly, S.
Mignerey, A. C.
Nouicer, R.
Olszewski, A.
Pak, R.
Reed, C.
Richardson, E.
Roland, C.
Roland, G.
Sagerer, J.
Sedykh, I.
Smith, C. E.
Stankiewicz, M. A.
Steinberg, P.
Stephans, G. S. F.
Sukhanov, A.
Szostak, A.
Tonjes, M. B.
Trzupek, A.
van Nieuwenhuizen, G. J.
Vaurynovich, S. S.
Verdier, R.
Veres, G. I.
PHYSICAL REVIEW C, 2010, 81 (02):
[48] Thermodynamic properties at the kinetic freeze-out in the Au plus Au and Cu plus Cu collisions at the RHIC using the Tsallis distribution
Wu, Wei-Hao
Tao, Jun-Qi
Zheng, Hua
Zhang, Wen-Chao
Liu, Xing-Quan
Zhu, Li-Lin
Bonasera, Aldo
NUCLEAR SCIENCE AND TECHNIQUES, 2023, 34 (10)
[49] System size dependence of hadron pT spectra in p plus p and Au plus Au collisions at √sNN=200 GeV
Khandai, P. K.
Sett, P.
Shukla, P.
Singh, V.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2014, 41 (02)
[50] Photons from quark and hadron phases in Au plus Au collisions
Long Jia-Li
He Ze-Jun
Ma Yu-Gang
Guan Na-Na
CHINESE PHYSICS LETTERS, 2008, 25 (09) : 3188 - 3191

← 1 2 3 4 5 →