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We compute the differential cross-section for inclusive prompt photon$+$quark production in deeply inelastic scattering of electrons off nuclei at small $x$ ($e+A$ DIS) in the framework of the Color Glass Condensate effective field theory.…

High Energy Physics - Phenomenology · Physics 2021-01-18 Isobel Kolbé , Kaushik Roy , Farid Salazar , Bjoern Schenke , Raju Venugopalan

Large angle gluon radiations induced by multiple parton scatterings contribute to dijet production in deeply inelastic scattering off a large nucleus at the Electron-Ion Collider. Within the generalized high-twist approach to multiple…

High Energy Physics - Phenomenology · Physics 2022-03-22 Yuan-Yuan Zhang , Xin-Nian Wang

In asymmetric heavy ion collisions like dA or pA, particle production yields are different in the forward (d- or p-side) and backward (A-side) rapidity directions. The rapidity distribution reflects the geometry and phase-space distribution…

High Energy Physics - Phenomenology · Physics 2008-07-23 G. G. Barnaföldi , A. Adeluyi , G. Fai , P. Lévai , G. Papp

The effects of the final state interaction in slow proton production in semi inclusive deep inelastic scattering processes off nuclei, A(e,e'p)X, are investigated in details within the spectator and target fragmentation mechanisms; in the…

Nuclear Theory · Physics 2009-12-14 V. Palli , C. Ciofi degli Atti , L. P. Kaptari , C. B. Mezzetti , M. Alvioli

We consider within QCD collinear factorization the inclusive process $p+p\to h_1+h_2+X$, where the pair of identified hadrons, $h_1,h_2$, having large transverse momenta is produced in high-energy proton-proton collisions. In particular, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Dmitry Yu. Ivanov , Alessandro Papa

We compute double and triple inclusive gluon production in p-A scattering beyond the so-called "glasma graph" approximation. We consider quantum interference effects and identify in this general setup the terms responsible for the gluon HBT…

High Energy Physics - Phenomenology · Physics 2018-09-26 Tolga Altinoluk , Néstor Armesto , Alex Kovner , Michael Lublinsky

Analytical explanation of the nuclear glory effect, which is similar to the known optical (atmospheric) glory phenomenon, is presented. It is based on the small phase space method for the multiple interaction processes probability estimates…

Nuclear Theory · Physics 2014-12-25 V. B. Kopeliovich , G. K. Matushko , I. K. Potashnikova

A novel observable, the double nuclear modification factor, is proposed to probe simultaneously the initial and final state effects in nucleus-nucleus collisions. An interesting competition between the combinatorial enhancement in the…

Nuclear Theory · Physics 2024-05-30 S. P. Baranov , A. V. Lipatov , M. A. Malyshev , A. M. Snigirev

A pQCD-based model for parton production and equilibration in ultrarelativistic heavy-ion collisions is reviewed. The model combines pQCD processes including initial and final state radiations together with string phenomenology for…

High Energy Physics - Phenomenology · Physics 2015-06-25 Xin-Nian Wang

We calculate $\Lambda$ and $\bar{\Lambda}$ hadron production cross sections in charged lepton semi-inclusive deep-inelastic scattering off nuclear target ($A$, using iron $\mathrm{Fe}$ as an example) and deuteron ($D$) target. The results…

Nuclear Theory · Physics 2018-07-04 Chang Gong , Bo-Qiang Ma

Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles. We argue that these features…

General Relativity and Quantum Cosmology · Physics 2023-01-18 Edward Basso , Daniel J. H. Chung , Edward W. Kolb , Andrew J. Long

The joint study of Double Parton Scatterings, in high energy proton-proton and proton-nucleus collisions, can provide a lot of information on multi-parton correlations. The multi-parton structure is in fact probed in a different way by DPS,…

High Energy Physics - Phenomenology · Physics 2013-12-16 Giorgio Calucci , Simona Salvini , Daniele Treleani

High energy lepton scattering has been the primary tool for mapping out the quark distributions of nucleons and nuclei. Data on the proton and deuteron have shown that there is a fundamental connection between the low and high energy…

Nuclear Experiment · Physics 2014-11-18 J. Arrington , R. Ent , C. E. Keppel , J. Mammei , I. Niculescu

Multiple scattering, induced radiative energy loss and modified fragmentation functions of a heavy quark in nuclear matter are studied within the framework of generalized factorization in perturbative QCD. Modified heavy quark fragmentation…

High Energy Physics - Phenomenology · Physics 2014-11-18 Ben-Wei Zhang , Enke Wang , Xin-Nian Wang

We discuss the process $p+p\to h_1+h_2+X$, where the identified hadrons $h_1$ and $h_2$ have large transverse momenta and are produced in high-energy proton-proton collisions with a large rapidity gap between them. In this case the…

High Energy Physics - Phenomenology · Physics 2011-10-21 Dmitry Yu. Ivanov , Alessandro Papa

I discuss the impact of the the coherent parton radiation on semi-inclusive production of hadrons in deep inelastic scattering at lepton-proton colliders. Such radiation can be consistently described in the $b$-space resummation formalism,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Pavel Nadolsky

The spin-dependent cross sections for semi-inclusive lepton-nucleon scattering are derived in the framework of collinear factorization, including the effects of masses of the target and produced hadron at finite momentum transfer squared…

High Energy Physics - Phenomenology · Physics 2015-10-28 J. V. Guerrero , J. J. Ethier , A. Accardi , S. W. Casper , W. Melnitchouk

The integrated cross sections of high-energy $e^+e^-$ electroproduction by an electron in an atomic field is studied. Importance of various contributions to these cross sections is discussed. It is shown that the Coulomb corrections are…

Nuclear Theory · Physics 2025-01-28 P. A. Krachkov , A. I. Milstein

We study single inclusive hadron production in proton-proton and proton-nucleus collisions in the CGC framework. The parameters in the calculation are obtained by fitting electron-proton deep inelastic scattering data. The obtained…

High Energy Physics - Phenomenology · Physics 2014-06-13 T. Lappi , H. Mäntysaari

PHENIX has measured the centrality dependence of mid-rapidity pion, kaon and proton transverse momentum distributions in d+Au and p+p collisions at sqrt(s_NN) = 200 GeV. The p+p data provide a reference for nuclear effects in d+Au and…

Nuclear Experiment · Physics 2008-11-26 PHENIX Collaboration , S. S. Adler