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We study parton-branching solutions of QCD evolution equations and present a method to construct both collinear and transverse momentum dependent (TMD) parton densities from this approach. We work with next-to-leading-order (NLO) accuracy…

高能物理 - 唯象学 · 物理学 2018-02-14 F. Hautmann , H. Jung , A. Lelek , V. Radescu , R. Zlebcik

An extension of the QED 'return to resonance' mechanism to light meson emission ($\pi$, $\rho$) in (anti)proton collisions with a hadronic target (nucleon or nucleus) is proposed. The cross section and the multiplicity distributions are…

高能物理 - 唯象学 · 物理学 2013-06-26 E. A. Kuraev , E. S. Kokoulina , E. Tomasi-Gustafsson

The cross-over region of the quark-gluon plasma (QGP) created in heavy ion collisions is influenced by the nearby deconfinement, chiral and baryon condensation phase transitions. A characteristic signature of the deconfinement transition in…

高能物理 - 格点 · 物理学 2012-11-20 Apoorva Patel

Predictions of the top-pair production cross section in electron-proton (ep) collisions at the future circular collider hadron-electron (FCC-he) and the large hadron electron collider (LHeC) in the leading order (LO) and the next-to-leading…

高能物理 - 唯象学 · 物理学 2023-01-27 G. R. Boroun

We study the fragmentation (far forward/backward) region of heavy ion collisions by considering an at-rest nucleus which is struck by a relativistic sheet of colored glass. By means of a simple classical model, we calculate the subsequent…

高能物理 - 唯象学 · 物理学 2021-05-05 Isobel Kolbé , Mawande Lushozi , Larry D. McLerran , Gongming Yu

A review of the main results of detailed flow analysis in highly central and semi-central heavy ion collisions at SIS energies is presented in the first part of this paper. The influence of the mass of the colliding nuclei and centrality on…

核实验 · 物理学 2009-04-24 M. Petrovici , A. Pop

We analyze the inclusive spectra of hadrons produced in $pp$ collisions at high energies in the mid-rapidity region within the soft QCD and perturbative QCD assuming the possible creation of the soft gluons at low intrinsic transverse…

高能物理 - 唯象学 · 物理学 2015-05-30 G. I. Lykasov , V. A. Bednyakov , A. A. Grinyuk , M. Poghosyan , A. G. Dolbilov

Pion and photon production cross sections are analyzed in proton-proton and proton-nucleus collisions at energies 20 GeV < s^1/2 < 60 GeV. We separate the proton-proton and nuclear contributions to transverse-momentum broadening and suggest…

核理论 · 物理学 2009-10-31 Gabor Papp , Peter Levai , George Fai

We calculate the cross sections of electromagnetic productions of muon and tauon pair productions from the ultra-relativistic heavy ion collisions. Since the Compton wavelengths of muon and tauon are comparable to the radius of the…

高能物理 - 唯象学 · 物理学 2015-08-31 M. Y. Sengul , M. C. Guclu , O. Mercan , N. G. Karakus

Our calculation of the total cross section for inclusive production of $t\bar{t}$ pairs in hadron collisions is summarized. The principal ingredient of this calculation is resummation of the universal leading-logarithm effects of gluon…

高能物理 - 唯象学 · 物理学 2008-02-03 Edmond L. Berger , Harry Contopanagos

Inclusive production of a quarkonium $\eta_{c,b}$ in hadron collisions at low transverse momentum can be used to extract various Transverse-Momentum-Dependent(TMD) gluon distributions of hadrons, provided the TMD factorization for the…

高能物理 - 唯象学 · 物理学 2016-02-03 J. P. Ma , C. Wang

We present a QCD study of fragmentation processes for light and heavy quarks in the semi-inclusive region of large x. Large logarithmic terms, due to soft-gluon radiation, are evaluated and resummed to all perturbative orders in the QCD…

高能物理 - 唯象学 · 物理学 2010-05-28 M. Cacciari , S. Catani

Based on a multi-phase transport model, the measured jet fragmentation function ratio of Pb+Pb collisions to p+p collisions in CERN Large Hadron Collider experiments is decomposed into two parts, corresponding to the two contributions of…

核理论 · 物理学 2013-09-03 Guo-Liang Ma

We present a model to compute baryon and meson transverse momentum distributions, and their ratios, in relativistic heavy-ion collisions. The model allows to compute the probability to form colorless bound states of either two or three…

高能物理 - 唯象学 · 物理学 2015-06-17 Eleazar Cuautle , Alejandro Ayala

We discuss medium effects on light cluster production in the QCD phase diagram by relating Mott transition lines to those for chemical freeze-out. In heavy-ion collisions at highest energies provided by the LHC, light cluster abundances…

核理论 · 物理学 2025-01-09 D. Blaschke , S. Liebing , G. Röpke , B. Dönigus

We consider the production of inclusive W bosons in variety of high-energy hadronic collisions: p--p, p--$\overline{\rm p}$, p--Pb, and Pb--Pb. In particular, we focus on the resulting distributions of charged leptons from W decay that can…

高能物理 - 唯象学 · 物理学 2017-09-26 François Arleo , Émilien Chapon , Hannu Paukkunen

We discuss the inclusive high-pT charged-particle production in proton-proton collisions at the LHC. The experimental data are compared to the NLO perturbative QCD calculations employing various sets of parton-to-hadron fragmentation…

高能物理 - 唯象学 · 物理学 2014-08-21 David d'Enterria , Kari J. Eskola , Ilkka Helenius , Hannu Paukkunen

We investigate the validity of the limiting-fragmentation hypothesis in relativistic heavy-ion collisions at energies reached at the Large Hadron Collider (LHC). A phenomenological analysis of central AuAu and PbPb collisions based on a…

高能物理 - 唯象学 · 物理学 2019-06-03 B. Kellers , G. Wolschin

We compute the cross section for photons emitted from sea quarks in proton-nucleus collisions at collider energies. The computation is performed within the dilute-dense kinematics of the Color Glass Condensate (CGC) effective field theory.…

高能物理 - 唯象学 · 物理学 2017-03-08 Sanjin Benic , Kenji Fukushima , Oscar Garcia-Montero , Raju Venugopalan

Energetic quarks and gluons lose energy as they traverse the hot and dense medium created in high-energy heavy-ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC). The nuclear…

核理论 · 物理学 2025-04-24 Thomas Marshall , Philip Suh , Gang Wang , Huan Zhong Huang