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相关论文: Thermal description of hadron production in e+e- c…

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We present a new model for the description of heavy-flavor hadronization in high-energy nuclear (and possibly hadronic) collisions, where the process takes place not in the vacuum, but in the presence of other color charges. We explore its…

高能物理 - 唯象学 · 物理学 2022-11-23 Andrea Beraudo , Arturo De Pace , Marco Monteno , Marzia Nardi , Daniel Pablos , Francesco Prino

After a brief survey of the remarkable accomplishments of the current heavy ion collision experiments up to 200A GeV, we address in depth the role of strange particle production in the search for new phases of matter in these collisions. In…

核理论 · 物理学 2021-05-24 Johann Rafelski , Jean Letessier , Ahmed Tounsi

We apply the target rest frame formalism to photon + heavy quark production cross section in hadronic collisions at high energies. We investigate the dependence of the production cross section on the photon and quark rapidities and…

高能物理 - 唯象学 · 物理学 2010-12-23 M. A. Betemps , M. V. T. Machado

We examine the stability of hadron resonance gas models by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. Hadron…

高能物理 - 唯象学 · 物理学 2010-04-29 S. Chatterjee , R. M. Godbole , Sourendu Gupta

The statistical production of antibaryons is considered within the canonical ensemble formulation. We demonstrate that the antibaryon suppression in small systems due to the exact baryon number conservation is rather different in the…

高能物理 - 唯象学 · 物理学 2009-10-31 Mark I. Gorenstein , Marek Gazdzicki , Walter Greiner

We study the production and dynamics of heavy quarks in the parton cascade model for relativistic heavy ion collisions. The model is motivated by the QCD parton picture and describes the dynamics of an ultra-relativistic heavy-ion collision…

核理论 · 物理学 2018-01-03 Dinesh K. Srivastava , Steffen A. Bass , Rupa Chatterjee

We use a recently completed O(alpha_s^2) fixed-order calculation of the heavy-flavour production cross section in e+e- collisions to compute the heavy-quark fragmentation function. We fit the result of our calculation, convoluted with a…

高能物理 - 唯象学 · 物理学 2009-10-31 Paolo Nason , Carlo Oleari

The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies from 183 to 209 GeV. The differential…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL collaboration

We show that the transverse-mass and rapidity spectra of protons and pions produced in Au-Au collisions at sqrt(sNN) = 2.4 GeV can be well reproduced in a thermodynamic model assuming single freeze-out of particles from a spherically…

核理论 · 物理学 2021-02-23 Sz. Harabasz , W. Florkowski , T. Galatyuk , M. Gumberidze , R. Ryblewski , P. Salabura , J. Stroth

Measurements of heavy flavor production in heavy-ion collisions have played an important role in understanding the properties of the quark-gluon plasma created in such collision. Due to their large masses, heavy flavor quarks present unique…

核实验 · 物理学 2017-03-08 Rongrong Ma

Particle and photon production is analyzed in the presence of transverse flow using two approximations to describe the properties of the hadronic medium, one containing only $\pi, \rho, \omega$, and $\eta$ mesons (simplified equation of…

核理论 · 物理学 2008-11-26 J. Cleymans , K. Redlich , D. Srivastava

Two-photon processes in relativistic heavy-ion collisions have emerged as a critical probe of quantum electrodynamics in ultra-intense electromagnetic fields, with recent focus extending beyond dileptons to hadronic final states. At…

高能物理 - 唯象学 · 物理学 2026-02-26 Luobing Wang , Xinbai Li , Zebo Tang , Xin Wu , Wangmei Zha

A statistical model for decay and formation of heavy hadronic resonances is formulated. The resonance properties become increasingly uncertain with increasing resonance mass. Drawing on analogy with the situation in low-energy nuclear…

核理论 · 物理学 2009-11-11 Subrata Pal , Pawel Danielewicz

The reaction e+ e- -> e+ e- gamma* gamma* -> e+ e- hadrons is analysed for quasi-real virtual photons using data collected by the L3 detector during the LEP high energy runs at sqrt(s) = 183 and 189 GeV. Preliminary results on the cross…

高能物理 - 实验 · 物理学 2007-05-23 Akos Csilling

Heavy quarks, produced at early stages of heavy-ion collisions, are an excellent probe of the Quark-Gluon Plasma (QGP) also created in these collisions. Electrons from open heavy-flavor hadron decays (HFE) are good proxies for heavy quarks,…

高能物理 - 唯象学 · 物理学 2024-04-16 Shenghui Zhang , Rongrong Ma , Yuanjing Ji , Zebo Tang , Qian Yang , Yifei Zhang , Wangwei Zha

Production of resonances is considered in the framework of the single-freeze-out model of ultra-relativistic heavy ion collisions. The formalism involves the virial expansion, where the probability to form a resonance in a two-body channel…

核理论 · 物理学 2009-11-10 Wojciech Broniowski , Wojciech Florkowski , Brigitte Hiller

Critical behaviors of quark-hadron phase transition in high-energy heavy-ion collisions are investigated with the aim of identifying hadronic observables. The surface of the plasma cylinder is mapped onto a 2D lattice. The Ising model is…

核理论 · 物理学 2009-11-06 Rudolph C. Hwa

Predictions for light charged hadron production data in the current fragmentation region of deeply inelastic scattering from the H1 and ZEUS experiments are calculated using perturbative Quantum Chromodynamics at next-to-leading order, and…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Albino , B. A. Kniehl , G. Kramer , C. Sandoval

Recently, significant enhancements of J/$\psi$ and $e^{+} e^{-}$ pair production at very low transverse momenta were observed by the STAR and ALICE collaboration in peripheral hadronic A+A collisions. The anomaly excesses point to evidence…

高能物理 - 唯象学 · 物理学 2019-01-07 Wangmei Zha , Lijuan Ruan , Zebo Tang , Zhangbu Xu , Shuai Yang

The production/absorption rate of particles in compressed and heated asymmetric matter is studied using a Relativistic Mean Field (RMF) transport model with an isospin dependent collision term. Just from energy conservation in the…

核理论 · 物理学 2008-11-26 G. Ferini , M. Colonna , T. Gaitanos , M. Di Toro
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