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Related papers: A model for net-baryon rapidity distribution

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Proton rapidity distributions have been measured by the NA49 collaboration in 40 and 158 GeV/nucleon Pb+Pb collisions as function of collision centrality. We find that the shape and the yield per wounded nucleon in the mid-rapidity region…

Nuclear Experiment · Physics 2014-11-20 H. Stroebele

We develop a (3+1)-dimensional hybrid evolution model for heavy-ion collisions with dynamical sources for the energy-momentum tensor and baryon current. During an initial pre-equilibrium stage based on UrQMD, the four-momenta and baryon…

Nuclear Theory · Physics 2019-01-23 Lipei Du , Ulrich Heinz , Gojko Vujanovic

A new striking feature of hadron production in nuclear collisions is the large stopping of the participating nucleons in hadron-nucleus and nucleus-nucleus collisions. This enhanced baryon stopping can be understood introducing new diquark…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Ranft , R. Engel , S. Roesler

We argue that most commonly used models for nuclear scattering at ultra-relativistic energies do not treat energy conservation in a consistent fashion. Demanding theoretical consistency as a minimal requirement for a realistic model, we…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. J. Drescher , M. Hladik , S. Ostapchenko , T. Pierog , K. Werner

We investigate the fluctuations of the net-baryon number near the critical point of the liquid-gas phase transition. We use the parity doublet model in the mean-field approximation fixed to the zero-temperature properties of nuclear matter…

Nuclear Theory · Physics 2025-08-06 Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

We introduce a method to reconstruct full rapidity distributions of charged particle multiplicity and net proton yields, crucial for constraining the longitudinal dynamics of nuclear matter created in the beam energy scan program. Employing…

High Energy Physics - Phenomenology · Physics 2024-07-09 Lipei Du

We have constructed an equation of state which smoothly interpolates between an excluded volume hadron resonance gas at low energy density to a plasma of quarks and gluons at high energy density. This crossover equation of state agrees very…

Nuclear Theory · Physics 2016-09-21 J. Kapusta , M. Albright , C. Young

Higher moments of multiplicity fluctuations of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the canonical ensemble. Exact conservation of three charges, baryon number, electric…

Nuclear Theory · Physics 2017-09-27 Jing-Hua Fu

Recent theory progresses in (3+1)D dynamical descriptions of relativistic nuclear collisions at finite baryon density are reviewed. Heavy-ion collisions at different collision energies produce strongly coupled nuclear matter to probe the…

Nuclear Theory · Physics 2022-02-16 Chun Shen

The production of charmed and beauty hadrons in proton-proton collisions at high energies are analyzed within the modified quark-gluon string model (QGSM) including the internal motion of quarks in colliding hadrons. We present some…

High Energy Physics - Phenomenology · Physics 2009-10-13 G. I. Lykasov , V. V. Lyubushkin , T. V. Lyubushkina , V. A. Bednyakov

We calculate the net baryon rapidity distribution in Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC) in the framework of the Parton Cascade Model (PCM). Parton rescattering and fragmentation leads to a substantial increase in…

Nuclear Theory · Physics 2009-11-07 Steffen A. Bass , Berndt Müller , Dinesh K. Srivastava

We suggest a new theoretical method to describe the baryon clusterization of nuclei in hadron-nucleus reactions. As an example we have explored the nuclei production in $\pi^-+C$ and $\pi^-+W$ collisions at p$_{lab}$=1.7 GeV by using the…

Nuclear Theory · Physics 2024-10-01 A. Ergun , N. Buyukcizmeci , A. Kittiratpattana , T. Reichert , A. S. Botvina , M. Bleicher

I discuss the role and impact of net-baryon number conservation in measurements of net proton fluctuations in heavy-ion collisions. I show that the magnitude of the fluctuations is entirely determined by the strength of two particle…

Nuclear Theory · Physics 2019-09-18 Claude A Pruneau

We suggest to use net-baryon rapidity distributions in central relativistic heavy-ion collisions at SPS, RHIC and LHC energies in order to probe saturation physics. Within the color glass condensate framework based on small-coupling QCD,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Yacine Mehtar-Tani , Georg Wolschin

To explore the structure of the QCD phase diagram in high baryon density domain, several high-energy nuclear collision experiments in a wide range of beam energies are currently performed or planned using many accelerator facilities. In…

Constituent quarks in a nucleon are the essential elements in the standard ``quark model" associated with the electric charge, spin, mass, and baryon number of a nucleon. Quantum Chromodynamics (QCD) describes nucleon as a composite object…

High Energy Physics - Phenomenology · Physics 2025-03-10 Niseem Magdy , Abhay Deshpande , Roy Lacey , Wenliang Li , Prithwish Tribedy , Zhangbu Xu

The binomial acceptance correction procedure is studied for particle number distributions detected in high energy reactions in finite regions of the momentum space. We present acceptance correction formulas for scaled variance, skewness,…

High Energy Physics - Phenomenology · Physics 2020-03-25 Oleh Savchuk , Roman V. Poberezhnyuk , Volodymyr Vovchenko , Mark I. Gorenstein

The string melting version of a multi-phase transport model is often applied to high-energy heavy-ion collisions since the dense matter thus formed is expected to be in parton degrees of freedom. In this work we improve its quark…

Nuclear Theory · Physics 2017-07-26 Yuncun He , Zi-Wei Lin

We present a model for the structure of baryons in which the valence partons interact through a linear potential. This model can be derived from QCD in the approximation where the transverse momenta are ignored. We compare the parton…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. S. Krishnaswami , S. G. Rajeev

The production of charmed and beauty baryons in proton-proton collisions at high energies is analyzed within the modified quark-gluon string model. We present some predictions for the experiments on the forward beauty baryon production in…

High Energy Physics - Phenomenology · Physics 2010-12-09 V. A. Bednyakov , G. I. Lykasov , V. V. Lyubushkin