Pion, Kaon, and Proton Production in Central Pb-Pb Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi>NN</mml:mi></mml:msub></mml:msqrt><mml:mo mathvariant="bold">=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>

Alme, J.; Erdal, H. A.; Helstrup, H.; Hetland, Kristin Fanebust; Kileng, B.; Altinpinar, S.; Djuvsland, Ø.; Fehlker, D.; Haaland, Ø.; Huang, M.; Langoy, R.; Lien, J.; Liu, Lijiao; Nystrand, J.; Røed, K.; Röhrich, D.; Skjerdal, K.; Szostak, A.; Ullaland, K.; Øvrebekk, G.; Wagner, B.; Yang, S.; Dordic, O.; Eyyubova, G.; Kvaerno, H.; Lindal, S.; Løvhøiden, G.; Milošević, J.; Nilsson, M. S.; Qvigstad, H.; Richter, Matthias; Skaali, T. B.; Tveter, Trine Spedstad; Wikne, J.; Abelev, B.; Adam, J.; Adamová, D.; Adare, A.; Aggarwal, M. M.; Rinella, G. Aglieri; Agocs, A. G.; Agostinelli, A.; Salazar, S. Aguilar; Ahammed, Z.; Masoodi, A. Ahmad; Ahn, S. U.; Akindinov, A.; Aleksandrov, D.; Alessandro, B.; Alfaro, Molina

doi:10.1103/physrevlett.109.252301

Cited by 196 publications

(105 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This finding disagrees with claims that SHM alone does not describe the particle multiplicity data obtained in relativistic heavy-ion collisions at LHC [5,6]. In the chemical nonequilibrium SHM approach, we allow quark pair yield parameter γ q for light quarks, a feature we presented as a necessary model refinement for the past 15 yr [7][8][9].…”

Section: Introductionmentioning

confidence: 64%

Hadron production and quark-gluon plasma hadronization in Pb-Pb collisions atsNN=2.76 TeV

et al. 2013

View full text Add to dashboard Cite

We show that all central rapidity hadron yields measured in Pb-Pb collisions at √ s NN = 2.76 TeV are well described by the chemical nonequilibrium statistical hadronization model (SHM), where the chemically equilibrated quark-gluon plasma source breaks up directly into hadrons. SHM parameters are obtained as a function of centrality of colliding ions, and we compare CERN Large Hadron Collider (LHC) results with Brookhaven National Laboratory Relativistic Heavy Ion Collider (RHIC) results. We predict yields of unobserved hadrons and address antimatter production. The physical properties of the quark-gluon plasma fireball particle source show universality of hadronization conditions at LHC and RHIC.

show abstract

Section: Introductionmentioning

confidence: 64%

Hadron production and quark-gluon plasma hadronization in Pb-Pb collisions atsNN=2.76 TeV

et al. 2013

View full text Add to dashboard Cite

show abstract

“…At LHC energies the afterburner "post-freeze-out" stage is the longest, and so there is a special interest to check the chemical freeze-out hypotheses within the dynamical models for these energies. The ALICE Collaboration has already noted [8,9] that annihilation processes at the afterburner stage, which are taken into account in the hydrokinetic model (HKM) [10], noticeably improve agreement with (anti)proton spectra/yield at the LHC. The analysis of the role of inelastic processes at the post-hydrodynamic stage in formation of the particle yield is ongoing (see, e.g., [11]).…”

Section: Introductionmentioning

confidence: 99%

Particle production at energies available at the CERN Large Hadron Collider within an evolutionary model

Sinyukov

Shapoval

2018

Phys. Rev. C

View full text Add to dashboard Cite

The particle yields and particle number ratios in Pb+Pb collisions at the CERN Large Hadron Collider (LHC) energy √ s NN = 2.76 TeV are described within the integrated hydrokinetic model (iHKM) at two different equations of state (EoS) for quark-gluon matter and the two corresponding hadronization temperatures T = 165 MeV and T = 156 MeV. The role of particle interactions at the final afterburner stage of the collision in the particle production is investigated by means of comparison of the results of full iHKM simulations with those where the annihilation and other inelastic processes (except for resonance decays) are switched off after hadronization/particlization, similarly as in the thermal models. An analysis supports the picture of continuous chemical freeze-out in the sense that the corrections to the sudden chemical freeze-out results, which arise because of the inelastic reactions at the subsequent evolution times, are noticeable and improve the description of particle number ratios. An important observation is that, although the particle number ratios with switched-off inelastic reactions are quite different at different particlization temperatures which are adopted for different equations of state to reproduce experimental data, the complete iHKM calculations bring very close results in both cases.

show abstract

“…In this section, a simultaneous fit to the π , K, p, d, and 3 He spectra in the centrality range 0-20% using in addition data from [41,49] is discussed. Since the BW model is not expected to describe eventual hard contributions that may set in at higher p T , the fit ranges have been limited.…”

Section: A Description Of Spectra Via Blast-wave Fitsmentioning

confidence: 99%

“…Figure 16 shows the d/p and the 3 He /p ratios as a function of the average charged particle multiplicity per event. The proton yields are taken from [41,49]. The observed values of about 3.6 × 10 −3 for the d/p ratio and about 9.3 × 10…”

Section: A Description Of Spectra Via Blast-wave Fitsmentioning

confidence: 99%

See 1 more Smart Citation

Production of light nuclei and anti-nuclei inppand Pb-Pb collisions at energies available at the CERN Large Hadron Collider

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

Phys. Rev. C

Self Cite

179

172

View full text Add to dashboard Cite

The production of (anti-)deuteron and (anti-) 3 He nuclei in Pb-Pb collisions at √ s NN = 2.76 TeV has been studied using the ALICE detector at the LHC. The spectra exhibit a significant hardening with increasing centrality. Combined blast-wave fits of several particles support the interpretation that this behavior is caused by an increase of radial flow. The integrated particle yields are discussed in the context of coalescence and thermal-statistical model expectations. The particle ratios, 3 He /d and 3 He /p, in Pb-Pb collisions are found to be in agreement with a common chemical freeze-out temperature of T chem ≈ 156 MeV. These ratios do not vary with centrality which is in agreement with the thermal-statistical model. In a coalescence approach, it excludes models in which nucleus production is proportional to the particle multiplicity and favors those in which it is proportional to the particle density instead. In addition, the observation of 31 anti-tritons in Pb-Pb collisions is reported. For comparison, the deuteron spectrum in pp collisions at √ s = 7 TeV is also presented. While the p/π ratio is similar in pp and Pb-Pb collisions, the d/p ratio in pp collisions is found to be lower by a factor of 2.2 than in Pb-Pb collisions.

show abstract

Pion, Kaon, and Proton Production in Central Pb-Pb Collisions atsNN=2.76 TeV

Cited by 196 publications

References 53 publications

Hadron production and quark-gluon plasma hadronization in Pb-Pb collisions atsNN=2.76 TeV

Hadron production and quark-gluon plasma hadronization in Pb-Pb collisions atsNN=2.76 TeV

Particle production at energies available at the CERN Large Hadron Collider within an evolutionary model

Production of light nuclei and anti-nuclei inppand Pb-Pb collisions at energies available at the CERN Large Hadron Collider

Contact Info

Product

Resources

About