The Reality of Fairies

Hanratty, John; Kelly, John; Yeats, W. B.; McCormack, W. J.

doi:10.2307/20625746

Cited by 2 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(iii) T eq decreases with centrality. This trend is similar to that of the kinetic freezeout temperature T kin returned from the combined blast-wave fit on the pion, kaon and [25,26,27,28,36,37]. The curves represent the combined fit.…”

Section: Resultssupporting

confidence: 73%

“…However, the ALICE collaboration have presented the Λ p T spectra at 0-5%, 5-10%, 10-20%, 20-40%, 40-60% and 60-80% centralities in Pb-Pb collisions at this energy [27]. Moreover, the preliminary result of the Λ p T spectra in pp collisions at 2.76 TeV is available [28]. Thus the Λ R AA spectra at these centralities can be constructed using equation (1).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nuclear modification factor in Pb–Pb and p-Pb collisions using Boltzmann transport equation

Qiao¹,

Che²,

Gu³

et al. 2020

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

View full text Add to dashboard Cite

We investigate the nuclear modification factor (R AA ) of identified particles as a function of transverse momentum (p T ) in Pb-Pb collisions at √ s NN = 2.76 and 5.02 TeV, as well as p-Pb collision at 5.02 TeV in the framework of Boltzmann transport equation with relaxation time approximation. In this framework, the initial distribution of particles is chosen as the Tsallis distribution and the local equilibrium distribution as the Boltzmann-Gibbs blast-wave distribution. The nonextensive parameter q pp , the Tsallis temperature T pp and the equilibrium temperature T eq are set to be in common for all particles, while the ratio of kinetic freeze-out time to relaxation time t f /τ is different for different particles when we performed a combined fit to the R AA spectra of different particles at a given centrality. We observe that the fitted curves describe the spectra well up to p T ≈ 3 GeV/c. q pp and T eq (t f /τ ) decrease (increases) with centrality nonlinearly, while T pp is almost independent of centrality. The dependence of the rate at which q pp , T eq or t f /τ changes with centrality on the energy and the size of the colliding system is discussed.

show abstract

Section: Resultssupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Nuclear modification factor in Pb–Pb and p-Pb collisions using Boltzmann transport equation

Qiao¹,

Che²,

Gu³

et al. 2020

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

View full text Add to dashboard Cite

show abstract

“…They are publicly available in refs. [6,7]. The φ spectra at 0.9, 2.76 and 7 TeV were published by the ALICE collaboration [8][9][10].…”

Section: Methods To Search For the Scaling Behaviourmentioning

confidence: 99%

“…However, the investigation of their spectra is an important ingredient in understanding the mechanism of particle production in high energy colli-sions. Thus, in this paper, we will focus on the p T spectra of K 0 S , Λ, Ξ and φ produced in pp collisions at 0.9, 2.76 and 7 TeV [5][6][7][8][9][10]. The p T spectra of Ω are not considered in this work, as their spectra at 0.9 TeV are not available so far.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Universal scaling of strange particle pT spectra in pp collisions

Yang

Wang

et al. 2018

Eur. Phys. J. A

View full text Add to dashboard Cite

As a complementary study to that performed on the transverse momentum (pT) spectra of charged pions, kaons and protons in proton-proton (pp) collisions at LHC energies 0.9, 2.76 and 7 TeV, we present a scaling behaviour in the pT spectra of strange particles (K 0 S , Λ, Ξ and φ) at these three energies. This scaling behaviour is exhibited when the spectra are expressed in a suitable scaling variable z = pT/K, where the scaling parameter K is determined by the quality factor method and increases with the center of mass energy ( √ s). The rates at which K increases with ln √ s for these strange particles are found to be identical within errors. In the framework of the colour string percolation model, we argue that these strange particles are produced through the decay of clusters that are formed by the colour strings overlapping. We observe that the strange mesons and baryons are produced from clusters with different size distributions, while the strange mesons (baryons) K 0 S and φ (Λ and Ξ) originate from clusters with the same size distributions. The cluster's size distributions for strange mesons are more dispersed than those for strange baryons. The scaling behaviour of the pT spectra for these strange particles can be explained by the colour string percolation model in a quantitative way.

show abstract

The Reality of Fairies

Cited by 2 publications

References 0 publications

Nuclear modification factor in Pb–Pb and p-Pb collisions using Boltzmann transport equation

Nuclear modification factor in Pb–Pb and p-Pb collisions using Boltzmann transport equation

Universal scaling of strange particle pT spectra in pp collisions

Contact Info

Product

Resources

About