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Related papers: Multiplicity Dependence in the Non-Extensive Hadro…

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The scaling properties of the final state charged hadron and mean jet multiplicity distributions, calculated by deep residual neural network architectures with different complexities are presented. The parton-level input of the neural…

High Energy Physics - Phenomenology · Physics 2023-03-10 Gábor Bíró , Gergely Gábor Barnaföldi

Experiments at the Large Hadron Collider (LHC) have measured multiplicity distributions in p+p and p+Pb collisions at a new domain of collision energy. Based on considering an energy-dependent broadening of the nucleon's density…

High Energy Physics - Phenomenology · Physics 2015-01-07 Hongmin Wang , Zhao-Yu Hou , Xian-Jing Sun

We investigate the multiplicity dependence of the transverse momentum $p_T$ spectra of hadrons produced in high-energy collisions. We propose that the partonic distribution be parameterized by its non-extensive entropy and the parton…

High Energy Physics - Phenomenology · Physics 2024-07-10 L. S. Moriggi , G. S. Ramos , M. V. T. Machado

The energy and centrality dependence of the charged multiplicity per participant nucleon is shown to be able to differentiate between final-state saturation and fixed scale pQCD models of initial entropy production in high-energy heavy-ion…

Nuclear Theory · Physics 2009-10-09 Xin-Nian Wang , Mikols Gyulassy

The HIJING (Heavy-ion Jet Interaction Generator) Monte Carlo model is updated with the latest parton distributions functions (PDF) and new set of the parameters in the two-component mini-jet model that controls total $p+p$ cross section and…

High Energy Physics - Phenomenology · Physics 2011-02-18 Wei-Tian Deng , Xin-Nian Wang , Rong Xu

We study the multiplicity dependence of jet structures in pp collisions using Monte Carlo event generators. We give predictions for multiplicity-differential jet structures and present evidence for a non-trivial jet shape dependence on…

High Energy Physics - Phenomenology · Physics 2019-03-22 Zoltán Varga , Róbert Vértesi , Gergely Gábor Barnaföldi

We study the event multiplicity dependence of the jet structure in pp collisions. We present evidence for jet shape modification due to multi-parton interactions using PYTHIA and HIJING++ Monte Carlo (MC) event generators as an input to our…

High Energy Physics - Phenomenology · Physics 2019-04-30 Zoltán Varga , Róbert Vértesi , Gergely Gábor Barnaföldi

We derive a simple analytical scaling function which embodies the predictions of high density QCD on the energy, centrality, rapidity, and atomic number dependences of hadron multiplicities in nuclear collisions. Both centrality and…

Nuclear Theory · Physics 2008-11-26 D. Kharzeev , E. Levin

This work presents an analysis of event-by-event multiplicity fluctuations as a sensitive tool for diagnosing the state of matter produced in relativistic heavy-ion collisions. Using a modified version of the HIJING Monte Carlo generator,…

High Energy Physics - Phenomenology · Physics 2026-03-12 Y. A. Rusak , L. F. Babichev

A study investigating a possible jet shape dependence on the charged event multiplicity was performed on collision samples generated by Monte-Carlo (MC) event generators PYTHIA and HIJING++. We calculated the integral jet shape and found a…

High Energy Physics - Phenomenology · Physics 2019-05-31 Z. Varga , R. Vertesi , G. G. Barnafoldi

The recently published first measurement of charged hadron multiplicity density at mid-rapidity $dN_{ch}/d\eta=1584 \pm 4 ({\rm stat.}) \pm 76 ({\rm sys.})$ in central $Pb+Pb$ collisions at $\sqrt{s} = 2.76$ TeV by the ALICE Experiment at…

Nuclear Theory · Physics 2011-08-19 Wei-tian Deng , Xin-Nian Wang , Rong Xu

The multihadron production in nucleus-nucleus collisions and its interrelation with that in (anti)proton-proton interactions are studied by exploring the charged particle mean multiplicity collision-energy and centrality dependencies in the…

High Energy Physics - Phenomenology · Physics 2016-04-05 Edward K. G. Sarkisyan , Aditya Nath Mishra , Raghunath Sahoo , Alexander S. Sakharov

The results of a Machine Learning-based method is presented here to investigate the scaling properties of the final state charged hadron and mean jet multiplicity distributions. Deep residual neural network architectures with different…

High Energy Physics - Phenomenology · Physics 2022-10-20 Gábor Bíró , Bence Tankó-Bartalis , Gergely Gábor Barnaföldi

The paper contains a description of a first attempt to understand the extremely inelastic high energy hadron collisions, when the multiplicity of produced hadrons considerably exceeds its mean value. Problems with existing model predictions…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Manjavidze , A. Sissakian

First calculated results with the new HIJING++ are presented for identified hadron production in high-energy heavy ion collisions. The recently developed HIJING++ version is based on the latest version of PYTHIA8 and contains all the…

The collision system and multiplicity dependence of chemical freeze-out temperature ($T_{\rm ch}$) and strangeness saturation factor ($\gamma_{s}$) are obtained by studying the particle ratios at the Large Hadron Collider (LHC) energies.…

High Energy Physics - Phenomenology · Physics 2019-09-02 Rutuparna Rath , Arvind Khuntia , Raghunath Sahoo

We present preliminary results with HIJING++ (3.1.1) for identified hadron production in high-energy heavy ion collisions at LHC energies. The recently developed HIJING++ version is based on the latest version of PYTHIA8 and contains all…

A class of simple superposition models based on the Glauber picture of multiple collisions is compared with the data on the centrality dependence of the multiplicity distributions in a central rapidity bin. We show how the results depend on…

High Energy Physics - Phenomenology · Physics 2010-12-23 K. Fialkowski , R. Wit

Atomic number ($A$) and energy ($\roots$) scaling exponents of multiplicity and transverse energy in heavy ion collisions are analytically derived in the perturbative QCD + saturation model. The exponents depend on the small-$x$ behaviour…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. J. Eskola , K. Kajantie , K. Tuominen

Femtoscopic measurements at a variety of facilities have established a clear dependence of spatial scales with event multiplicity and particle transverse mass ($m_T$) in heavy ion collisions from $\sqrt(s_{NN}) \sim 2-200 GeV$. The…

Nuclear Experiment · Physics 2009-04-24 Zbigniew Chajȩcki
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