Higher-moment singularities explored by net-proton nonstatistical fluctuations

Zhou, D.; Limphirat, A.; Yan, Yu-Liang; Cheng, Yun; Yan, Yupeng; Cai, X.; Csernai, L. P.; Sa, Ben-Hao

doi:10.1103/physrevc.85.064916

Cited by 26 publications

(44 citation statements)

References 52 publications

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“…In general, the cross section we have obtained for J/ψπ → (DD * + c.c.) reaction has a comparable or smaller magnitude at low CM energies than other ones [13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37]. As CM energy grows, the high-energy behavior of the presented findings show a more pronounced decrease of magnitude of cross section than those with any kind of control of high-energy behavior.…”

Section: Resultsmentioning

confidence: 43%

“…In this sense, a large amount of effort has been dedicated to estimate the charmonia interactions with light hadrons (mainly involving π and ρ mesons) using different approaches [13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37]. Most of these analyses explore the J/ψ − π reactions with reasonable results, and can be classified in the following sort: interactions based on effective hadron Lagrangians [15,16,17,18,19,20,22,27,28,34,36,37] and constituent quark-model framework [13,14,17,21,24,25,33,35].…”

Section: Introductionmentioning

confidence: 99%

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Impact of unitarization on the J/ψ-light meson cross section

2018

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Hidden charm mesons continue playing an essential role as relevant probes to understand the evolution of partonic matter. It is expected that the charmonia that survived the quark-gluon plasma phase suffer collisions with other particles composing the hadronic matter. In this work, we intend to contribute on this subject by presenting an updated study about the interactions of J/ψ with surrounding hadronic medium. The meson-meson interactions are described with a SU (4) effective Lagrangian, and within the framework of unitarized coupled channel amplitudes projected onto s-wave. The symmetry is explicitly broken to SU (3) by suppression of the interactions driven by charmed mesons. We calculate the cross sections for J/ψ scattering by light pseudoscalar mesons (π, K, η) and vector mesons (ρ, K * , ω), as well as their inverse processes. Keeping the validity of this present approach in the low CM energy range, the most relevant channels are evaluated and a comparison of the findings with existing literature is performed.

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Section: Resultsmentioning

confidence: 43%

Section: Introductionmentioning

confidence: 99%

Impact of unitarization on the J/ψ-light meson cross section

2018

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“…(7) is straightforward to determine (see Eqs. (9) and (10)). We further note that the kernel of the Fourier integral depends on the volume so that with increasing volume it becomes an ever steeper function localized aroundμ B = 0.…”

Section: Resultsmentioning

confidence: 94%

Net-baryon multiplicity distribution consistent with lattice QCD

Bzdak

Koch

2019

Phys. Rev. C

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We determine the net-baryon multiplicity distribution which reproduces all cumulants measured so far by lattice QCD. We present the dependence on the volume and temperature of this distribution. We find that for temperatures and volumes encountered in heavy ion reactions, the multiplicity distribution is very close to the Skellam distribution, making the experimental determination of it rather challenging. We further provide estimates for the statistics required to measure cumulants of the net-baryon and net-proton distributions.

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“…• The net-proton, net-baryon, and net-charge multiplicity nonstatistical fluctuations in the relativistic nuclear collisions are successfully investigated in [10,11].…”

Section: Introductionmentioning

confidence: 99%

An upgraded issue of the parton and hadron cascade model, PACIAE 2.2

Zhou

Yan

et al. 2015

Computer Physics Communications

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The parton and hadron cascade model PACIAE 2.1 (cf. Comput. Phys. Commun. 184 (2013) 1476) has been upgraded to the new issue of PACIAE 2.2. By this new issue the lepton-nucleon and lepton-nucleus (inclusive) deep inelastic scatterings can also be investigated. As an example, the PACIAE 2.2 model is enabled to calculate the specific charged hadron multiplicity in the e − +p and e − +D semi-inclusive deep-inelastic scattering at 27.6 GeV electron beam energy. The calculated results are well comparing with the corresponding HERMES data. Additionally, the effect of model parameters α and β in the Lund string fragmentation function on the multiplicity is studied.Keywords: relativistic nuclear collision; (inclusive) deep inelastic scattering, PYTHIA model; PACIAE model. The lepton inclusive and semi-inclusive deep inelastic scattering (DIS and SIDIS) off nuclear target have greatly contributed to the parton structure of hadron, the parametrization of parton distribution function (PDF), and the extraction of fragmentation function (FF). Unfortunately, the PACIAE 2.1 model is unable to describe the lepton-nucleon and lepton-nucleus DIS (SIDIS), the corresponding upgrade is highly required. Solution method: The parton and hadron cascade model of PACIAE 2.1 is upgraded to PACIAE 2.2 with the possibility of investigating the lepton-nucleon and lepton-nucleus DIS (SIDIS). In the PACIAE 2.2 model the lepton-nucleon and lepton-nucleus DIS are treated the same as proton-nucleon and proton-nucleus collisions in PACIAE 2.1, respectively. However, the lepton-nucleon DIS cross section is used instead of the nucleon-nucleon cross section in the initiation stage of the PACIAE model. Reasons for the new version: In order that the PACIAE 2.2 model is now also able to simulate the lepton-nucleon and lepton-nucleus DIS. Summary of revisions: In the PACIAE 2.2 model the lepton-nucleon and leptonnucleus DIS are dealt with the same way as the proton-nucleon and proton-nucleus collisions in PACIAE 2.1, respectively. However, the lepton-nucleon DIS cross section is employed instead of nucleon-nucleon cross section. Restrictions: Depend on the problem studied. 2 PACIAE 2.2a is for the elementary collision, such as pp,pp, and e + e − collisions, as well as the lepton-nucleon DIS, with input file of usux.dat. PACIAE 2.2b and PACIAE 2.2c are for the nuclear-nucleus collision of p+A and A+B as well as the lepton-nucleus DIS with input file of usu.dat. PACIAE 2.2b and 2.2c are similar in the physical contents but are different in the topological structure (see text for the details). PROGRAM SUMMARY

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Higher-moment singularities explored by net-proton nonstatistical fluctuations

Cited by 26 publications

References 52 publications

Impact of unitarization on the J/ψ-light meson cross section

Impact of unitarization on the J/ψ-light meson cross section

Net-baryon multiplicity distribution consistent with lattice QCD

An upgraded issue of the parton and hadron cascade model, PACIAE 2.2

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