Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at root s(NN)=200 GeV

doi:10.1103/PhysRevLett.108.072302

	Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at root s(NN)=200 GeV
	Agakishiev, G.1; Aggarwal, M. M.31; Ahammed, Z.49; Alakhverdyants, A. V.1; Alekseev, I.17; Alford, J.19; Anderson, B. D.19; Anson, C. D.29; Arkhipkin, D.4; Averichev, G. S.1
刊名	PHYSICAL REVIEW LETTERS
	2012-02-14
卷号	108
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.108.072302
文献子类	Article
英文摘要	We report transverse momentum (p(T) <= 15 GeV/c) spectra of pi(+/-), K-+/-, p, (p) over bar, K-0(S), and rho(0) at midrapidity in p + p and Au + Au collisions at root s(NN) = 200 GeV. Perturbative QCD calculations are consistent with pi(+/-) spectra in p + p collisions but do not reproduce K and p((p) over bar) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p(T) provide experimental evidence for varying quark and gluon jet contributions to high-p(T) hadron yields. The relative hadron abundances in Au + Au at p(T) >= 8 GeV/c are measured to be similar to the p + p results, despite the expected Casimir effect for parton energy loss.
资助项目	Science and Technology Facilities Council[ST/J000140/1]
WOS关键词	QUARK-GLUON PLASMA ; STAR ; SPECTRA ; COLLABORATION ; PERSPECTIVE ; MATTER ; TPC
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000300247100003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48975]
专题	中国科学院近代物理研究所
通讯作者	Agakishiev, G.
作者单位	1.Joint Inst Nucl Res, Dubna 141980, Russia 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, Sao Paulo, Brazil 9.Univ Illinois, Chicago, IL 60607 USA 10.Creighton Univ, Omaha, NE 68178 USA
推荐引用方式 GB/T 7714	Agakishiev, G.,Aggarwal, M. M.,Ahammed, Z.,et al. Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at root s(NN)=200 GeV[J]. PHYSICAL REVIEW LETTERS,2012,108.
APA	Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Alekseev, I..,...&STAR Collaboration.(2012).Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at root s(NN)=200 GeV.PHYSICAL REVIEW LETTERS,108.
MLA	Agakishiev, G.,et al."Identified Hadron Compositions in p plus p and Au plus Au Collisions at High Transverse Momenta at root s(NN)=200 GeV".PHYSICAL REVIEW LETTERS 108(2012).