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Related papers: Nuclear Modification Factor Using Tsallis Non-exte…

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The biological effect of one single radiation dose on a living tissue has been described by several radiobiological models. However, the fractionated radiotherapy requires to account for a new magnitude: time. In this paper we explore the…

Tissues and Organs · Quantitative Biology 2013-01-10 O. Sotolongo-Grau , Daniel Rodriguez-Perez , Oscar Sotolongo-Costa , J. C. Antoranz

We present charm and bottom nuclear modification factors for RHIC and LHC using Standard Model perturbative QCD and recent AdS/CFT string drag energy loss models. We find that extreme extrapolations to LHC mask potential experimentally…

High Energy Physics - Phenomenology · Physics 2008-11-26 W. A. Horowitz , M. Gyulassy

We use recent nuclear parton distributions, among them the Hirai--Kumano--Nagai (HKN) and Eskola--Paukkunen--Salgado (EPS08) parameterizations, in our pQCD-improved parton model to calculate the nuclear modification factor, R_{AA'}(p_T), at…

High Energy Physics - Phenomenology · Physics 2008-05-23 G. G. Barnaföldi , G. Fai , P. Lévai , B. A. Cole , G. Papp

We extract a target-side Cu transverse-momentum profile from fixed-target $p$--Cu Drell--Yan data by holding a momentum-space proton reference fixed and training only an asymmetric Cu kernel in the small-$q_T$ region. In the supported…

High Energy Physics - Phenomenology · Physics 2026-05-08 I. P. Fernando , D. Keller

The nuclear modification factors R_{AA} and R_{CP} have been used to measure medium-induced suppression in heavy-ion collisions at sqrt{s_{NN}} = 200GeV which was among the earliest evidence for the existence of a strongly interacting…

Nuclear Experiment · Physics 2019-08-13 Stephen P. Horvat

We review the ubiquitous presence in multiparticle production processes of quasi-power law distributions (i.e., distributions following pure power laws for large values of the argument but remaining finite, usually exponential, for small…

High Energy Physics - Phenomenology · Physics 2016-01-20 Grzegorz Wilk , Zbigniew Włodarczyk

Large p_T transverse momentum distributions exhibit apparently a power-like behavior. We argue that, under closer inspection, this behavior is in fact decorated with some log-periodic oscillations. Assuming that this is genuine effect and…

High Energy Physics - Phenomenology · Physics 2014-03-25 Grzegorz Wilk , Zbigniew Wlodarczyk

In order to improve the teaching of the course of statistical physics in universities, in this article we introduce nonextensive statistics, a new statistical theory about complex systems. We study the two modification coefficients a and b…

General Physics · Physics 2018-09-12 Lining Zheng , Jiulin Du

Within the Tsallis thermodynamics' framework, and using scaling properties of the entropy, we derive a generalization of the Gibbs-Duhem equation. The analysis suggests a transformation of variables that allows standard thermodynamics to be…

Statistical Mechanics · Physics 2009-11-07 Eduard Vives , Antoni Planes

For the generalized statistical mechanics based on the Tsallis entropy, a variational perturbation approximation method with the principle of minimal sensitivity is developed by calculating the generalized free energy up to the third order…

Statistical Mechanics · Physics 2007-05-23 Wen-Fa Lu

The Tsallis distribution has been used recently to fit the transverse momentum distributions of identified particles by the STAR and PHENIX collaborations at the Relativistic Heavy Ion Collider and by the ALICE and CMS collaborations at the…

High Energy Physics - Phenomenology · Physics 2015-05-30 J. Cleymans , D. Worku

We discuss the possibility of implementing axiomatic nonextensive statistics, where it is conjectured that the phase-space volume determines the (non)extensive entropy, on the particle production at NICA energies. Both Boltzmann-Gibbs and…

Nuclear Theory · Physics 2016-08-23 Abdel Nasser Tawfik

The relationship between the parton transverse momentum and longitudinal momentum, which is obtained by analysing the hadron tensor in the deep inelastic scattering (DIS) process, indicates that the transverse size of partons in a nucleon…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jian-Jun Yang , Guang-Lie Li

Charged-current cross sections are calculated for quasielastic neutrino and antineutrino scattering using a relativistic meson-nucleon model. We examine how nuclear-structure effects, such as relativistic random-phase-approximation (RPA)…

Nuclear Theory · Physics 2009-09-25 Hungchong Kim , J. Piekarewicz , C. J. Horowitz

The transverse momentum distributions of charged particles in p-Pb collisions as sqrt{s_{NN}} = 5.02 TeV measured by the ALICE collaboration are fitted using Tsallis statistics. The use of a thermodynamically consistent form of this…

High Energy Physics - Phenomenology · Physics 2013-11-14 M. D. Azmi , J. Cleymans

The study of higher-order moments of a distribution and its cumulants constitute a sensitive tool to investigate the correlations between the particle produced in high energy interactions. In our previous work we have used the Tsallis $q$…

High Energy Physics - Phenomenology · Physics 2020-07-02 S. Sharma , G. Chaudhary , K. Sandeep , A. Singla , M. Kaur

Neutral pion ($\pi^{0}$) and $\eta$ meson production cross sections were measured up to unprecedentedly high transverse momenta ($p_{\rm T}$) in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 TeV. The mesons were reconstructed via their…

Nuclear Experiment · Physics 2022-04-08 ALICE Collaboration

The nonextensive entropic measure proposed by Tsallis introduces a parameter, q, which is not defined but rather must be determined. The value of q is typically determined from a piece of data and then fixed over the range of interest. On…

Statistical Mechanics · Physics 2014-08-08 J. M. Conroy , H. G. Miller

Heavy quark observables are applied to probe the initial energy density distribution with violation of longitudinal boost invariance produced in relativistic heavy-ion collisions. Using an improved Langevin model coupled to a…

Nuclear Theory · Physics 2023-01-25 Ze-Fang Jiang , Shanshan Cao , Wen-Jing Xing , Xiaowen Li , Ben-Wei Zhang

The influence of non-extensive Tsallis statistics on the hadron phase structure has been investigated using the Polyakov-quark-meson (PQM) model. The analysis examines the non-extensive effects on the temperature dependence of PQM order…

High Energy Physics - Phenomenology · Physics 2024-04-19 Abdel Magied Diab