De-confinement in small systems: Clustering of color sources in high multiplicity p̄p collisions at s = 1.8TeV

Gutay, L.; Hirsch, A.; Scharenberg, R. P.; Srivastava, B.; Pajares, C.

doi:10.1142/s0218301315501013

Cited by 47 publications

(32 citation statements)

References 46 publications

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“…7, but it shows the de-pendences of initial temperature (a)(c) T i1 and (b)(d) T i2 on (a)(b) m 0 and (c)(d) C, where T i1 (T i2 ) is obtained by the root-mean-square p T divided by √ 2, i.e. p 2 T 1 /2 ( p 2 T 2 /2) according to [37,38,39]. The symbols represent the results obtained from the fitting functions (Eqs.…”

Section: Resultsmentioning

confidence: 99%

Initial, effective, and kinetic freeze-out temperatures from transverse momentum spectra in high-energy proton(deuteron)–nucleus and nucleus–nucleus collisions

Waqas

Liu

2020

Eur. Phys. J. Plus

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The transverse momentum spectra of charged particles produced in proton(deuteron)-nucleus and nucleus-nucleus collisions at high energies are analyzed by the Hagedorn thermal model and the standard distribution in terms of multi-component. The experimental data measured in central and peripheral gold-gold (Au-Au) and deuteron-gold (d-Au) collisions by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC), as well as in central and peripheral lead-lead (Pb-Pb) and proton-lead (p-Pb) collisions by the ALICE Collaboration at the Large Hadron Collider (LHC) are fitted by the two models. The initial, effective, and kinetic freeze-out temperatures are then extracted from the fitting to the transverse momentum spectra. It is shown that the initial temperature is larger than the effective temperature, and the effective temperature is larger than the kinetic freezeout temperature. The three types of temperatures in central collisions are comparable with those in peripheral collisions, and those at the LHC are comparable with those at the RHIC.

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Section: Resultsmentioning

confidence: 99%

Initial, effective, and kinetic freeze-out temperatures from transverse momentum spectra in high-energy proton(deuteron)–nucleus and nucleus–nucleus collisions

Waqas

Liu

2020

Eur. Phys. J. Plus

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“…According to refs. [37][38][39], if the initial temperature ( i T ) of the interacting system is approximately described by 2…”

Section: Resultsmentioning

confidence: 99%

Rapidity Dependent Transverse Momentum Spectra of Heavy Quarkonia Produced in Small Collision Systems at the LHC

Gao

Liu

2019

Advances in High Energy Physics

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The rapidity dependent transverse momentum spectra of heavy quarkonia ( ⁄ and Υ mesons) produced in small collision systems such as proton-proton (pp) and proton-lead (p-Pb) collisions at center-of-mass energy (per nucleon pair) NN ( ) s s  5-13 TeV are described by a two-component statistical model which is based on the Tsallis statistics and inverse power-law. The experimental data measured by the LHCb Collaboration at the Large Hadron Collider (LHC) are well fitted by the model results. The related parameters are obtained and the dependences of parameters on rapidity are analyzed.

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“…The decreasing trend of F (ξ) is due to the production of high string density, which reveals more suppression of color charges in comparison to lower collisions energies and centralities. F (ξ) in heavy-ion collisions is presented as a function of dN ch /dη scaled with the transverse overlap area S N , which are estimated by using the Glauber model [11] along with the results in highmultiplicity non-jet pp collisions at √ s = 1.8 TeV from FNAL (Fermi National Accelerator Laboratory) E735 experiment [23] in figure 3. It is observed that F (ξ) falls onto a universal scaling curve for hadron-hadron and nucleus-nucleus collisions.…”

Section: Resultsmentioning

confidence: 99%

Energy and centrality dependent study of deconfinement phase transition in a color string percolation approach at RHIC energies

Sahoo

Tiwari

et al. 2018

Eur. Phys. J. A

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We take the experimental data for transverse momentum spectra of identified charged hadrons in different centrality classes for nucleus-nucleus (A+A) collisions at various Relativistic Heavy-Ion Collider (RHIC) energies measured by the STAR collaboration. We analyse these data in the framework of color string percolation model (CSPM) in order to extract various percolation parameters at different centralities at RHIC energies to study the effect of collision geometry and collision energy. We use these parameters to study the centrality dependent behaviour of initial temperature of the percolation cluster, energy density, average transverse momentum, shear viscosity to entropy density ratio (η/s) and trace anomaly for different energies at RHIC from √ sNN = 19.6 to 200 GeV. These observables are found to strongly depend on centrality at various collision energies. The critical percolation density, which is related to the deconfinement phase transition is achieved in the most central nucleus-nucleus collisions, while it fails in the peripheral collisions. A universal scaling is observed in color suppression factor and initial temperatures when studied as a function of charged particle pseudorapidity distribution scaled by nuclear overlap area at RHIC energies. The minimum of η/s is observed in the most central collisions at √ sNN = 130 and 200 GeV.PACS numbers: 25.75.Gz,25.75.Nq,12.38.Mh * Corresponding Author Email: Raghunath.Sahoo@cern.ch average transverse momentum, shear viscosity to entropy density ratio, and trace anomaly at RHIC energies. The paper runs as follows. First, we present the formulation and methodology in section II. In section III, we present the results and discussions. Finally, the findings of this work are summarized in section IV.

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De-confinement in small systems: Clustering of color sources in high multiplicity p̄p collisions at s = 1.8TeV

Cited by 47 publications

References 46 publications

Initial, effective, and kinetic freeze-out temperatures from transverse momentum spectra in high-energy proton(deuteron)–nucleus and nucleus–nucleus collisions

Initial, effective, and kinetic freeze-out temperatures from transverse momentum spectra in high-energy proton(deuteron)–nucleus and nucleus–nucleus collisions

Rapidity Dependent Transverse Momentum Spectra of Heavy Quarkonia Produced in Small Collision Systems at the LHC

Energy and centrality dependent study of deconfinement phase transition in a color string percolation approach at RHIC energies

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