Transverse momentum and pseudorapidity distributions of final-state particles and spatial structure pictures of an interacting system in p-Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV

Liu, Fu‐Hu; Wei, Hua-Rong; Lacey, R.

doi:10.1140/epja/i2015-15043-x

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…We use the Tsallis-Pareto-type function and give up using the Tsallis distribution in the present work due to the fact that the former has few applications and the latter has many applications in the community. In particular, we have used the Tsallis distribution in our previous works [43][44][45]. To show the variousness in the fitting functions, we use the Tsallis-Pareto-type function in the present work.…”

Section: Resultsmentioning

confidence: 99%

Chemical potentials of light hadrons and quarks from yield ratios of negative to positive particles in high energy pp collisions

Wei

Liu

2019

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

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We describe the transverse momentum spectra of π ± , K ± , p, andp produced in protonproton (pp) collisions at different collision energies by using a Tsallis-Pareto-type function, and obtain the yield ratios, k π , k K , and k p , of negative to positive particles from the fitting results of transverse momentum spectra and the extracted normalization constants. The transverse momentum dependent and energy dependent chemical potentials of light hadrons (π, K, and p) and quarks (u, d, and s) in pp collisions are then extracted successively from the yield ratios. The six types of transverse momentum dependent chemical potentials show the trend of being close to zero in low-p T region and away from zero in high-p T region. Meanwhile, the energy dependent chemical potentials seem to decrease slightly with the increase of the collision energy, and the limiting values of the six types of chemical potentials are zero at very high energy in pp collisions, which confirms that the partonic interactions possibly play an important role at RHIC and LHC, especially at LHC.

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Section: Resultsmentioning

confidence: 99%

Chemical potentials of light hadrons and quarks from yield ratios of negative to positive particles in high energy pp collisions

Wei

Liu

2019

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

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Pseudorapidity distribution of charged particles and spatial structure pictures of interacting system in central d–Au collisions at RHIC energy

Liu

Cui

2015

Indian J Phys

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Kinetic freeze-out temperature and flow velocity extracted from transverse momentum spectra of final-state light flavor particles produced in collisions at RHIC and LHC

2016

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Abstract:The transverse momentum spectra of final-state light flavor particles produced in proton-proton (p-p), copper-copper (Cu-Cu), gold-gold (Au-Au), lead-lead (PbPb), and proton-lead (p-Pb) collisions for different centralities at relativistic heavy ion collider (RHIC) and large hadron collider (LHC) energies are studied in the framework of a multisource thermal model. The experimental data measured by the STAR, CMS, and ALICE Collaborations are consistent with the results calculated by the multi-component Erlang distribution and Tsallis Statistics. The effective temperature and real temperature (kinetic freeze-out temperature) of interacting system at the stage of kinetic freeze-out, the mean transverse flow velocity and mean flow velocity of particles, and the relationships between them are extracted. The dependences of effective temperature and mean (transverse) momentum on rest mass, moving mass, centrality, and center-of-mass energy, and the dependences of kinetic freeze-out temperature and mean (transverse) flow velocity on centrality, center-of-mass energy, and system size are obtained.

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Transverse momentum and pseudorapidity distributions of final-state particles and spatial structure pictures of an interacting system in p-Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV

Cited by 3 publications

References 34 publications

Chemical potentials of light hadrons and quarks from yield ratios of negative to positive particles in high energy pp collisions

Chemical potentials of light hadrons and quarks from yield ratios of negative to positive particles in high energy pp collisions

Pseudorapidity distribution of charged particles and spatial structure pictures of interacting system in central d–Au collisions at RHIC energy

Kinetic freeze-out temperature and flow velocity extracted from transverse momentum spectra of final-state light flavor particles produced in collisions at RHIC and LHC

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