Initial- and final-state temperatures of emission source from differential cross-section in squared momentum transfer in high energy collisions

Wang, Qi; Liu, Fu-Hu; Olimov, Khusniddin K.

doi:10.48550/arxiv.2104.14271

Cited by 2 publications

(2 citation statements)

References 53 publications

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“…The inter-particle dissociation grows after further expansion of the system, where the elastic collisions between the particles cease which leads to the kinetic freeze-out stage and there is no longer change in the p T spectra after this stage. Various hydrodynamical models can be used to extract the kinetic freeze-out properties [5,6,[9][10][11][12][13]. The kinetic freeze-out temperature (T 0 ) and radial flow velocity (β) characterizes the kinetic freeze-out stage, and it carry the signatures of the transverse expansion of the system.…”

Section: Introductionmentioning

confidence: 99%

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

Ajaz¹,

Peng²,

Ajaz³

et al. 2022

J. Phys. G: Nucl. Part. Phys.

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We analyze the transverse momentum (pT ) spectra, 1=Nev[(1/2pT ) d2N/dydpT ], of kaon, proton, deuteron and triton in different centrality events in gold-gold (Au-Au) collisions at Relativistic Heavy Ion Collisions (RHIC) by Hagedorn thermal model and extracted the excitation function of effective temperature, kinetic freeze-out volume, initial temperature and kinetic freeze-out temperature. We perceived that the effective temperature, initial temperature and kinetic freeze-out temperature sharply increases from 7.7 GeV to 14.5 GeV and then remain static from 14.5-39 GeV, and this consistency may disclose that the onset energy of the phase transition of partial deconfinement and the whole deconfinement are 14.5 and 39 GeV respectively. The kinetic freeze-out volume and mean transverse momentum grows with the rise of collision energy. Furthermore, the different extracted temperatures are observed in the order of time evolution of the interacting system, and they (as well as kinetic freeze-out volume) have an increasing trend from peripheral to central collisions. We also observed the mass dependence of the effective temperature and kinetic freeze-out volume where former increases while the later decreases for heavier particles, which indicates the early freeze-out of the heavier particles.

show abstract

Section: Introductionmentioning

confidence: 99%

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

Ajaz¹,

Peng²,

Ajaz³

et al. 2022

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

show abstract

“…The inter-particle dissociation grows after further expansion of the system, where the elastic collisions between the particles cease which leads to the kinetic freeze-out stage and there is no longer change in the p T spectra after this stage. Various hydrodynamical models can be used be used to extract the kinetic freeze-out properties [5,6,9,10,11,12,13]. The kinetic freeze-out temperature (T 0 ) and radial flow velocity (β) characterizes the kinetic freeze-out stage, and it carry the signatures of the transverse expansion of the system.…”

Section: Introductionmentioning

confidence: 99%

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

Waqas,

Peng,

Ajaz

et al. 2022

Preprint

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We analyze the transverse momentum (p T ) spectra, 1/N ev [(1/2πp T ) d 2 N /dydp T ], of kaon, proton, deuteron and triton in different centrality events in gold-gold (Au-Au) collisions at Relativistic Heavy Ion Collisions (RHIC) by Hagedorn thermal model and extracted the excitation function of effective temperature, kinetic freezeout volume, initial temperature and kinetic freeze-out temperature. We perceived that the effective temperature, initial temperature and kinetic freeze-out temperature sharply increases from 7.7 GeV to 14.5 GeV and then remain static from 14.5-39 GeV, and this consistency may disclose that the onset energy of the phase transition of partial deconfinement and the whole deconfinement are 14.5 and 39 GeV respectively. The kinetic freeze-out volume and mean transverse momentum grows with the rise of collision energy. Furthermore, the different extracted temperatures are observed in the order of time evolution of the interacting system, and they (as well as kinetic freeze-out volume) have an increasing trend from peripheral to central collisions. We also observed the mass dependence of the effective temperature and kinetic freeze-out volume where former increases while the later decreases for heavier particles, which indicates the early freeze-out of the heavier particles.

show abstract

Initial- and final-state temperatures of emission source from differential cross-section in squared momentum transfer in high energy collisions

Cited by 2 publications

References 53 publications

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

Extraction of different temperatures and kinetic freeze-out volume in high energy collisions

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