Particle species and collision energy dependencies of the midrapidity average transverse momenta of identified charged particles in Au+Au and Pb+Pb collisions in (Snn)1/2 = 62-5020GeV energy range at RHIC and LHC

Olimov, Khusniddin K.; Liu, Fu‐Hu; Musaev, Kobil A.; Olimov, Alisher K.; Tukhtaev, Boburbek J.; Saidkhanov, Nasir Sh.; Yuldashev, B. S.; Olimov, K.; Gulamov, K. G.

doi:10.1142/s0218301321500294

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…The observation is that the temperature T decreases from central to peripheral collisions for all collision systems and energies as expected. This trend is universal and is consistent with the average momentum dependence of centrality [56]. The system can survive for a longer time in central collisions than in peripheral collisions since more nucleons are affected and more particles are produced in the collisions.…”

Section: Resultssupporting

confidence: 82%

The Novel Scaling of Tsallis Parameters from the Transverse Momentum Spectra of Charged Particles in Heavy-Ion Collisions

Tao

Wang

et al. 2022

Particles

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The transverse momentum (pT) spectra of charged particles measured in Au + Au collisions from the beam energy scan (BES) program, Cu + Cu collisions at sNN=62.4, 200 GeV at the RHIC and Pb + Pb, Xe + Xe collisions at the LHC are investigated in the framework of Tsallis thermodynamics. The theory can describe the experimental data well for all the collision systems, energies and centralities investigated. The collision energy and centrality dependence of the Tsallis distribution parameters, i.e., the temperature T and the nonextensive parameter q, for the A + A collisions are also studied and discussed. A novel scaling between the temperature divided by the natural logarithm of collision energy (T/lns) and the nonextensive parameter q is presented.

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Section: Resultssupporting

confidence: 82%

The Novel Scaling of Tsallis Parameters from the Transverse Momentum Spectra of Charged Particles in Heavy-Ion Collisions

Tao

Wang

et al. 2022

Particles

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“…In general case, i.e., as other conditions (such as collision energy and collision system) are not changed, the larger system means more intensive particle excitation (i.e., higher stochastic momentum or higher temperature) and more expansion (i.e., more radial flow). Experimental observation have shown that p T of hadrons generally positively responds to the dN ch /dy at given collision energy and collision system [14,15,17,18,21,22,[38][39][40]. Therefore, we take dN ch /dy as the main relevant ingredients parameterizing p T of hadrons.…”

Section: IVmentioning

confidence: 99%

Averaged transverse momentum correlations of hadrons in relativistic heavy-ion collisions

Feng,

Shao,

Song

2022

Preprint

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We compile experimental data for the averaged transverse momentum ( pT ) of proton, Λ, Ξ − , Ω − and φ at mid-rapidity in Au+Au collisions at 200, 39, 27, 19.6, 11.5, 7.7 GeV and in Pb+Pb collisions at √ sNN = 2.76 TeV, and find that experimental data of these hadrons exhibit systematic correlations. We apply a quark combination model with equal-velocity combination approximation to derive analytic formulas of hadronic pT in the case of exponential form of quark pT spectra at hadronization. We use them to successfully explain the systematic correlations exhibited in pT data of pΛ, ΛΞ − , Ξ − Ω − and Ξ − φ pairs. We also use them to successfully explain the regularity observed in pT of these hadrons as the function of (dN ch /dy)/(Npart/2) at mid-rapidity in central heavy-ion collisions at both RHIC and LHC energies. Our results suggest that the constituent quark degrees of freedom and the equal-velocity combination of these constituent quarks at hadronization play important role in understanding the production of baryons and φ meson at these RHIC and LHC energies.

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“…In general case, i.e., as other conditions (such as collision energy and collision system) are not changed, the larger system means more intensive particle excitation (i.e., higher stochastic momentum or higher temperature) and more expansion (i.e., more radial flow). Experimental observation have shown that the p T of hadrons generally positively responds to the dN ch /dy at given collision energy and collision system [14,15,17,18,21,22,[46][47][48]. Therefore, we take dN ch /dy as the main relevant ingredient parameterizing p T of hadrons.…”

Section: IVmentioning

confidence: 99%

Averaged transverse momentum correlations of hadrons in relativistic heavy-ion collisions

Feng

Shao

2022

Phys. Rev. C

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We compile experimental data for the averaged transverse momentum ( pT ) of proton, Λ, Ξ − , Ω − and φ at mid-rapidity in Au+Au collisions at 200, 39, 27, 19.6, 11.5, 7.7 GeV and in Pb+Pb collisions at √ sNN = 2.76 TeV, and find that experimental data of these hadrons exhibit systematic correlations. We apply a quark combination model with equal-velocity combination approximation to derive analytic formulas of hadronic pT in the case of exponential form of quark pT spectra at hadronization. We use them to successfully explain the systematic correlations exhibited in pT data of pΛ, ΛΞ − , Ξ − Ω − and Ξ − φ pairs. We also use them to successfully explain the regularity observed in pT of these hadrons as the function of (dN ch /dy)/(0.5Npart) at mid-rapidity in central heavy-ion collisions at both RHIC and LHC energies. Our results suggest that the constituent quark degrees of freedom and the equal-velocity combination of these constituent quarks at hadronization play an important role in understanding pT correlations of baryons and φ meson in heavy-ion collisions at these RHIC and LHC energies.

show abstract

Particle species and collision energy dependencies of the midrapidity average transverse momenta of identified charged particles in Au+Au and Pb+Pb collisions in (Snn)1/2 = 62-5020GeV energy range at RHIC and LHC

Cited by 7 publications

References 23 publications

The Novel Scaling of Tsallis Parameters from the Transverse Momentum Spectra of Charged Particles in Heavy-Ion Collisions

The Novel Scaling of Tsallis Parameters from the Transverse Momentum Spectra of Charged Particles in Heavy-Ion Collisions

Averaged transverse momentum correlations of hadrons in relativistic heavy-ion collisions

Averaged transverse momentum correlations of hadrons in relativistic heavy-ion collisions

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