Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at root(S)(NN)=200 GeV

doi:10.1103/PhysRevLett.97.152301

	Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at root(S)(NN)=200 GeV
	Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Anderson, M.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.
刊名	PHYSICAL REVIEW LETTERS
	2006-10-13
卷号	97 页码:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.97.152301
英文摘要	Transverse momentum spectra of pi(+/-), p, and (p) over bar p up to 12 GeV/c at midrapidity in centrality selected Au + Au collisions at root s(NN) = 200 GeV are presented. In central Au + Au collisions, both pi(+/-) and p((p) over bar) show significant suppression with respect to binary scaling at p(T) greater than or similar to 4 GeV/c. Protons and antiprotons are less suppressed than pi(+/-), in the range 1.5 less than or similar to p(T) less than or similar to 6 GeV/c. The pi(-)/pi(+) and (p) over bar /p ratios show at most a weak pT dependence and no significant centrality dependence. The p/pi ratios in central Au + Au collisions approach the values in p + p and d + Au collisions at p(T) greater than or similar to 5 GeV/c. The results at high p(T) indicate that the partonic sources of pi(+/-), p, and (p) over bar have similar energy loss when traversing the nuclear medium.
WOS关键词	HADRON SPECTRA ; FRAGMENTATION FUNCTIONS ; D+AU COLLISIONS ; QUARK ; P+P
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000241247700022
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/26115]
专题	中国科学院近代物理研究所
通讯作者	Abelev, B. I.
作者单位	1.Yale Univ, New Haven, CT 06520 USA 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.CALTECH, Pasadena, CA 91125 USA 6.Univ Calif Berkeley, Berkeley, CA 94720 USA 7.Univ Calif Davis, Davis, CA 95616 USA 8.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 9.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 10.Univ Illinois, Chicago, IL USA
推荐引用方式 GB/T 7714	Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at root(S)(NN)=200 GeV[J]. PHYSICAL REVIEW LETTERS,2006,97:6.
APA	Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Anderson, B. D..,Anderson, M..,...&Zuo, J. X..(2006).Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at root(S)(NN)=200 GeV.PHYSICAL REVIEW LETTERS,97,6.
MLA	Abelev, B. I.,et al."Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at root(S)(NN)=200 GeV".PHYSICAL REVIEW LETTERS 97(2006):6.