CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Production and ratio of pi, K, p, and Lambda in Pb plus Pb collisions at root s(NN)=2.76 TeV
Zhang, S; Han, LX; Ma, YG; Chen, JH; Zhong, C; ygma@sinap.ac.cn
2014
Source PublicationPHYSICAL REVIEW C
ISSN0556-2813
Volume89Issue:3
AbstractThe particle production and their ratios for pi, K, p, and Lambda are studied in Pb + Pb collisions at root s(NN) = 2.76 TeV based on a blast-wave model with thermal equilibrium mechanism. The transverse momentum spectra of the above-mentioned particles at the kinetic freeze-out stage are discussed. The modification of the inverse slope of pion transverse momentum spectrum due to resonance decay has also been investigated. In addition, we found that the antiparticles-to-particles ratio as well as the kaons-to-pions ratio agree with the data by the LHC-ALICE Collaboration reasonably well, while the p/pi ratio is overestimated by a factor of 1.5, similar to those from other thermal model calculations. It is found that the ratios of p/pi and K/pi are dominated by the radial flow but slightly affected by the baryon chemical potential. Our study thus constrains the parameters at the chemical and kinetic freeze-out stages within the framework of thermal model in Pb + Pb collisions at root s(NN) = 2.76 TeV, and will help us better understand the properties of the dense and hot matter created in high-energy heavy-ion collisions at freeze-out stage.
KeywordNucleus-nucleus Collisions Heavy-ion Collisions Quark-gluon Plasma Equilibration Collaboration Perspective Therminator Generator Flow Lhc
Indexed BySCI
Language英语
WOS IDWOS:000334294500008
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14337
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorygma@sinap.ac.cn
Recommended Citation
GB/T 7714
Zhang, S,Han, LX,Ma, YG,et al. Production and ratio of pi, K, p, and Lambda in Pb plus Pb collisions at root s(NN)=2.76 TeV[J]. PHYSICAL REVIEW C,2014,89(3).
APA Zhang, S,Han, LX,Ma, YG,Chen, JH,Zhong, C,&ygma@sinap.ac.cn.(2014).Production and ratio of pi, K, p, and Lambda in Pb plus Pb collisions at root s(NN)=2.76 TeV.PHYSICAL REVIEW C,89(3).
MLA Zhang, S,et al."Production and ratio of pi, K, p, and Lambda in Pb plus Pb collisions at root s(NN)=2.76 TeV".PHYSICAL REVIEW C 89.3(2014).
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