Determination of Tsallis parameters for K∗(892)± mesons in inelastic pp, pPb and PbPb collisions

被引：0

作者：

Ul Abidin, Zain ^{[1
]}

Tabassam, Uzma ^{[1
]}

Ali, Muhammad ^{[1
]}

机构：

[1] COMSATS Univ, Dept Phys, Islamabad Campus,Pk Rd, Islamabad 44000, Pakistan

来源：

MODERN PHYSICS LETTERS A | 2023年 / 38卷 / 32N33期

关键词：

Transverse momentum; chemical potential; effective temperature; Tsallis distribution function; color coherence;

D O I：

10.1142/S0217732323501481

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Doubly differential transverse momentum spectra of strange mesons K*(892)(0) and K*(892)(+/-) within rapidity interval of |y|<0.5 are studied by using Monte Carlo event generators in pp, pPb and PbPb collisions at different center-of-mass energies. The predictions of simulations are compared to the ALICE data. The fitting of doubly differential transverse momentum spectra of ALICE data is performed by using Tsallis distribution function. To check the quality of the fitting, chemical potential is also set to zero value. The extracted values of the non-extensive parameter (q), a chemical potential mu and effective Tsallis temperature T for different particle species have been obtained from the thermodynamically consistent Tsallis distribution function. It is observed that the effective Tsallis temperature increases at different center-of-mass energies. The predictions of the MC event generators, i.e. PYTHIA8 CR and HIJING 2.0 are compared to the ALICE data, deviations are observed which may be due to the reshuffling of parton colors and string fragmentation.

引用

页数：12

共 6 条

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