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Going from lower to higher multiplicity events in proton-proton and proton-lead collisions, the data show a stronger than linear growth of the D-meson normalized yields. In this contribution we try to understand this behavior using a Monte…

High Energy Physics - Phenomenology · Physics 2026-03-26 R. Terra , A. V. Giannini , F. S. Navarra

This work presents a three-dimensional dynamical initialization model for relativistic heavy-ion collisions, implementing local energy-momentum conservation and baryon charge fluctuations at string junctions. Constraining parameters using…

Nuclear Theory · Physics 2022-06-22 Chun Shen , Björn Schenke

It is known that the proton is overpopulated by gluons and is characterized as a highly dense medium at high collision energies. From this, the formation of a new state of matter called Color Glass Condensate (CGC) is expected, and an open…

High Energy Physics - Phenomenology · Physics 2024-12-18 Yuri N. Lima , Andre V. Giannini , Victor P. B. Goncalves

In this paper we propose the analysis of the heavy quark photoproduction associated with a leading neutron in hadronic collisions at the LHC as an alternative to probe the pion gluon distribution in a kinematical range not covered by…

High Energy Physics - Phenomenology · Physics 2026-03-19 Victor P. Goncalves , Juciene T. de Souza , Diego Spiering

Proton-proton collisions at new high energies ($\sqrt {s}=$2.36 and 7 TeV) at LHC resulted into a greater mean multiplicities ($<e n >$) of charged particles in the mid-rapidity region than estimated $< n >$s by different models and event…

High Energy Physics - Phenomenology · Physics 2012-02-21 Premomoy Ghosh

A possible signal of new phenomena emerging in the global characteristics of multiparticle production in hadron interactions at TeV energies is studied. The multiplicity distributions of charged particles measured in proton-proton…

High Energy Physics - Phenomenology · Physics 2015-06-15 I. Zborovský

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

During the early development of Quantum Chromodynamics, it was proposed that baryon number could be carried by a non-perturbative Y-shaped topology of gluon fields, called the gluon junction, rather than by the valence quarks as in the QCD…

The study of multiparticle correlations and collectivity in the hot and dense matter created in collisions of heavy-ions as well as those of smaller systems such as proton--heavy-ion collisions has progressed to the point where detailed…

High Energy Physics - Phenomenology · Physics 2018-01-31 K. Dusling , M. Mace , R. Venugopalan

A new geometrical scaling method with gluon saturation rapidity limit is proposed to study the gluon saturation feature of the central rapidity region of relativistic nuclear collisions. The net-baryon number is essentially transported by…

High Energy Physics - Phenomenology · Physics 2012-02-13 Shuang LI , Sheng-Qin Feng

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

In this work we study charmonium production in high multiplicity proton-proton collisions. We investigate the role of the spatial distribution of partons in the protons and assume that the proton has a Y shape. In this configuration quarks…

High Energy Physics - Phenomenology · Physics 2023-06-27 R. Terra , F. S. Navarra

The fact that quark-quark, quark-gluon and gluon-gluon interactions are different sources of particle production in proton-proton collision at high energy is investigated in this work. The variation of the multiplicity and pseudo-rapidity…

High Energy Physics - Phenomenology · Physics 2015-07-21 F. H. Sawy , M. T. Ghoneim , M. T. Hussein

In scattering experiments, high-virtuality partons, i.e., quarks and gluons, initiate a series of additional parton emissions to create collimated sprays of particles known as jets. This paper presents a measurement of the Lund jet plane…

Nuclear Experiment · Physics 2026-02-11 CMS Collaboration

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

We initialize the Quantum Chromodynamic conserved charges of baryon number, strangeness, and electric charge arising from gluon splitting into quark-antiquark pairs for the initial conditions of relativistic heavy-ion collisions. A new…

Event geometry and initial state correlations have been invoked as possible explanations of long range azimuthal correlations observed in high multiplicity p+p and p+Pb collisions. We study the rapidity dependence of initial state momentum…

Nuclear Theory · Physics 2022-06-01 Bjoern Schenke , Soeren Schlichting , Pragya Singh

The topological presentation of pomeron exchange at the proton-proton collision of high energy is cylinder that is covered with the net of quark-gluon exchanges. I suggest that the process of double diffraction dissociation (DD) can be…

High Energy Physics - Phenomenology · Physics 2019-09-19 Olga I. Piskounova

The upcoming p+Pb run at the LHC will probe the nuclear gluon distribution at very small Bjorken x (from $x \sim 10^{-4}$ at mid-rapidity down to $x \sim 10^{-6}$ in the proton fragmentation region) and will allow to test approaches based…

High Energy Physics - Phenomenology · Physics 2012-10-23 Adrian Dumitru , Dmitri E. Kharzeev , Eugene M. Levin , Yasushi Nara

Recently, Liou, Mueller and Munier have argued that proton-nucleus collisions at the LHC may give access to the full statistics of the event-by-event fluctuations of the gluon density in the proton. Indeed, the number of particles produced…

High Energy Physics - Phenomenology · Physics 2017-09-19 Laura Dominé , Cédric Lorcé , Stéphane Munier , Simon Pekar
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