Signal of the pion string at high-energy collisions

	Signal of the pion string at high-energy collisions
	黄涛(理); Li YD(李云德); Mao H(毛虎); Zhang XM(张新民); Huang, T; Li, YD; Mao, H; Nagasawa, M; Zhang, XM
刊名	PHYSICAL REVIEW C
	2005
卷号	71 期号:1 页码:14902
通讯作者	Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China ; Kanagawa Univ, Fac Sci, Dept Informat Sci, Kanagawa 2591293, Japan ; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
英文摘要	We study the possible signals of a pion string associated with the QCD chiral phase transition in LHC Pb-Pb collision at energy roots=5.5 TeV. In terms of the Kibble-Zurek mechanism we discuss the production and evolution of the pion string. The pion string is not topologically stable; it decays into neutral pions and sigma mesons that in turn decay into pions. Our results show that all the neutral pions from the pion string are distributed at the low momentum and the ratio of neutral to charged pions from the pion string violates the isospin symmetry. For the momentum spectra of the total pions, the signal from the sigma particle decay from the pion string will be affected by the large decay width of the sigma significantly.
学科主题	Physics
类目[WOS]	Physics, Nuclear
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000226701900039
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240448]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Huang T,Li YD,Mao H,et al. Signal of the pion string at high-energy collisions[J]. PHYSICAL REVIEW C,2005,71(1):14902.
APA	黄涛.,李云德.,毛虎.,张新民.,Huang, T.,...&Zhang, XM.(2005).Signal of the pion string at high-energy collisions.PHYSICAL REVIEW C,71(1),14902.
MLA	黄涛,et al."Signal of the pion string at high-energy collisions".PHYSICAL REVIEW C 71.1(2005):14902.