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The baryon distribution is studied by using a parton cascade model which is based on pQCD incorporating hard partonic scattering and dynamical hadronization scheme. In order to study baryon distribution,baryonic cluster formation is newly…

Nuclear Theory · Physics 2007-05-23 Yasushi Nara

Within the framework of the effective theory for ultrasoft field modes a problem of interacting an energetic color particle with ultrasoft fluctuations in hot gluon plasma is considered. The procedure of calculation of certain effective…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. A. Markova , Yu. A. Markov

We analyse the multiplicity distributions of charged particles at Tevatron (p\bar p) and LHC (pp) energies in the framework of the independent pair parton interactions (IPPI) model. It is shown that the number of soft pair parton…

High Energy Physics - Phenomenology · Physics 2015-05-28 I. M. Dremin , V. A. Nechitailo

Parton distribution functions are crucial to understand the internal kinematics of hadrons. There are currently a large number of distribution functions on the market, and thanks to today's technology, performing computational analysis of…

High Energy Physics - Phenomenology · Physics 2022-01-07 David F. Rentería-Estrada , Roger J. Hernández-Pinto , German F. R. Sborlini

Double parton scattering (DPS) describes two colliding hadrons having interactions in the form of two hard processes, each initiated by a separate pair of partons. Just as for single parton scattering, the resummation of soft gluon exchange…

High Energy Physics - Phenomenology · Physics 2017-07-05 M. G. A. Buffing

In a consistently formulated pQCD framework incorporating non-zero mass heavy quark partons, there is still the freedom to define parton distributions obeying either mass-independent or mass-dependent evolution equations, contrary to…

High Energy Physics - Phenomenology · Physics 2009-10-30 Fredrick I. Olness , Randall J. Scalise

We discuss strategies for using lattice QCD to investigate some topics in strong interaction phenomenology which are usually related to soft pomeron exchange. These include hadronic cross-sections at high energies and diffractive scattering…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. S. Henty , C. Parrinello , D. G. Richards , J. I. Skullerud

We discuss the production of soft photons in high energy hadron-hadron collisions. We present a model where quarks and antiquarks in the hadrons emit ``synchrotron light'' when being deflected by the chromomagnetic fields of the QCD vacuum,…

High Energy Physics - Phenomenology · Physics 2009-10-28 G. W. Botz , P. Haberl , O. Nachtmann

In this paper we consider the soft processes at LHC energies in the framework of the Constituent Quark Model (CQM). We show that this rather naive model is able to describe all available soft data at lower energies and to predict the…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Bondarenko , E. Levin

Modified quark fragmentation functions in deeply inelastic $eA$ collisions and their QCD evolution equations are derived for the first time in the framework of multiple parton scattering. Induced radiation gives rise to additional terms in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Xiaofeng Guo , Xin-Nian Wang

The hadronization of an expanding partonic fireball is studied within the Parton-Hadron-Strings Dynamics (PHSD) approach which is based on a dynamical quasiparticle model (DQPM) matched to reproduce lattice QCD results in thermodynamic…

High Energy Physics - Phenomenology · Physics 2008-11-26 W. Cassing , E. L. Bratkovskaya

The hadronization of an expanding partonic fireball is studied within the Parton-Hadron-Strings Dynamics (PHSD) approach which is based on a dynamical quasiparticle model (DQPM) matched to reproduce lattice QCD results in thermodynamic…

Nuclear Theory · Physics 2015-05-13 W. Cassing , E. L. Bratkovskaya , Y. -. Z. Xing

We investigate hard exclusive reactions on the nucleon with soft pion emission. A parametrization of corresponding hadronic matrix elements in terms of parton distributions for final pion-nucleon state is provided. These distributions are…

High Energy Physics - Phenomenology · Physics 2009-09-29 Maxim V. Polyakov , Simone Stratmann

We emphasize the sizeable effects of absorption on high-energy `soft' processes, and, hence, the necessity to include multi-Pomeron-Pomeron interactions in the usual multi-channel eikonal description. We present a model which includes a…

High Energy Physics - Phenomenology · Physics 2009-03-24 M. G. Ryskin , A. D. Martin , V. A. Khoze

A new generation of parton distribution functions with increased precision and quantitative estimates of uncertainties is presented. This work includes a full treatment of available experimental correlated systematic errors for both new and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wu-Ki Tung

Photon emission arising in the course of transition between the states of quark-gluon and hadron plasma has been considered. Single-photon distributions and two-photon correlations in central rapidity region have been calculated for heavy…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. V. Andreev

An essential prerequisite for quark-gluon plasma production in nuclear collisions is cross-talk between the partons from different nucleons in the colliding nuclei. The initial density of partons is determined by the parton distribution…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Satz

With the use of MARTINI, a model which considers evolving QCD jets against a fluid dynamical background, it is shown that the introduction of formation time to the parton shower after the initial hard scattering is essential for a…

High Energy Physics - Phenomenology · Physics 2024-07-30 Rouzbeh Modarresi-Yazdi , Shuzhe Shi , Charles Gale , Sangyong Jeon

Partons are effective degrees of freedom describing the structure of hadrons involved in high-energy collisions. Familiar theories of partons are QCD light-front quantization and soft-collinear effective theory, both of which are…

High Energy Physics - Phenomenology · Physics 2020-08-12 Xiangdong Ji

Parton convolution models have been used extensively in describing the sea quarks in the nucleon and explaining quark distributions in nuclei (the EMC effect). From effective field theory point of view, we construct the parton convolution…

High Energy Physics - Phenomenology · Physics 2009-11-07 Jiunn-Wei Chen , Xiangdong Ji