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Within the colour dipole picture for deep inelastic scattering at small Bjorken $x$, we study the production of a pair of relatively hard jets via coherent diffraction. By "relatively hard" we mean that the transverse momenta of the two…

High Energy Physics - Phenomenology · Physics 2022-07-14 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos , S. Y. Wei

Jet quenching has become an essential signal for the characterization of the medium formed in experiments of heavy-ion collisions. After a brief introduction to the field, we present the full derivation of the medium-induced gluon radiation…

High Energy Physics - Phenomenology · Physics 2014-11-18 Jorge Casalderrey-Solana , Carlos A. Salgado

Theoretical prediction of oscillations of cumulant moments of parton multiplicity distributions inside a jet supported by experimental data in some multiple production processes asks for analysis of the phenomenon for the whole set of…

High Energy Physics - Phenomenology · Physics 2009-10-30 I. M. Dremin , V. A. Nechitailo , M. Biyajima , N. Suzuki

We present a detailed numerical investigation of semi-inclusive forward di-hadron production in proton-nucleus collisions employing the Color Glass Condensate effective theory. We focus on the regime where di-hadrons are produced nearly…

High Energy Physics - Phenomenology · Physics 2025-12-29 Paul Caucal , Zhong-Bo Kang , Piotr Korcyl , Farid Salazar , Björn Schenke , Tomasz Stebel , Raju Venugopalan , Wenbin Zhao

Medium-induced gluon radiation is usually identified as the dominant dynamical mechanism underling the {\it jet quenching} phenomenon observed in heavy-ion collisions. In its actual implementation, multiple medium-induced gluon emissions…

High Energy Physics - Phenomenology · Physics 2010-03-25 N. Armesto , L. Cunqueiro , C. A. Salgado , W. -C. Xiang

We find supersaturation for the intrinsic gluon distribution of nuclei, i.e. the low $x$ unintegrated nuclear gluon distribution peaks at intermediate transverse momenta $k_t=Q_s$ and vanishes at zero $k_t$. Taking into account the…

High Energy Physics - Phenomenology · Physics 2014-11-17 H. -J. Pirner , Feng Yuan

The transverse momentum spectra of hadrons is calculated from the unintegrated gluon distribution (UGD) within the $k_T$-factorization framework at small $x$. Starting from $pp$ collisions, the modification caused by the nuclear medium is…

High Energy Physics - Phenomenology · Physics 2021-03-03 L. S. Moriggi , G. M. Peccini , M. V. T. Machado

A main difficulty in understanding the dynamics of jets produced in the high-density environment of ultrarelativistic heavy ion collision, is to provide a unified description for the two sources of radiation that are a priori expected: the…

High Energy Physics - Phenomenology · Physics 2018-12-14 Paul Caucal , Edmond Iancu , Alfred H. Mueller , Gregory Soyez

We use the EFT developed in \cite{Mehtar-Tani:2025xxd}, to understand the interference driven phenomenon of color decoherence in inclusive jet production in a dense nuclear medium such as Nuclei or Quark Gluon Plasma. Using the…

High Energy Physics - Phenomenology · Physics 2026-03-03 Varun Vaidya

We study the production, in Deep Inelastic Scattering at high energy, of a quark-gluon dijet induced by $t$-channel quark exchange with the target, which goes beyond the eikonal approximation. Throughout this study we follow the Color Glass…

High Energy Physics - Phenomenology · Physics 2023-10-06 Tolga Altinoluk , Nestor Armesto , Guillaume Beuf

Jets provide one of the primary probes of the quark-gluon plasma produced in ultrarelativistic heavy ion collisions and the cold nuclear matter explored in deep inelastic scattering experiments. However, despite important developments in…

High Energy Physics - Phenomenology · Physics 2023-07-24 Wenyang Qian

In the framework of Soft-Collinear Effective Theory, the jet quenching parameter, $\hat{q}$, has been evaluated by adding the effect of Glauber gluon interactions to the propagation of a highly-energetic collinear parton in a medium. The…

High Energy Physics - Phenomenology · Physics 2015-06-11 Michael Benzke , Nora Brambilla , Miguel Angel Escobedo , Antonio Vairo

The merger of two magnetized compact objects, such as neutron stars, forms a compact object which may launch a relativistic and collimated jet. Numerical simulations of the process show that a dense and highly magnetized medium surrounds…

High Energy Astrophysical Phenomena · Physics 2024-06-17 Leonardo Garcia-Garcia , Diego Lopez-Camara , Davide Lazzati

Generalization of z-scaling observed in the inclusive high-pT charged hadron and jet production is proposed. The scaling function psi(z) describing both charged hadrons and jets produced in proton-(anti)proton collisions for various…

High Energy Physics - Phenomenology · Physics 2011-03-23 I. Zborovsky , M. Tokarev

The origin of the breaking of conventional linear k_\perp-factorization for hard processes in a nuclear environment is by now well established. The realization of the nonlinear nuclear k_\perp-factorization which emerges instead was found…

High Energy Physics - Phenomenology · Physics 2009-11-11 N. N. Nikolaev , W. Schäfer , B. G. Zakharov

Detailed insight into the interplay between parton energy loss and the way deconfined medium created in heavy-ion collisions expands is of great importance for improving the understanding of the jet quenching phenomenon. In this paper we…

High Energy Physics - Phenomenology · Physics 2020-07-24 Souvik Priyam Adhya , Carlos A. Salgado , Martin Spousta , Konrad Tywoniuk

We study the evolution and saturation of the gluon distribution function in the quark-gluon plasma as probed by a propagating parton and its effect on the computation of jet quenching or transport parameter $\hat{q}$. For thermal partons,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jorge Casalderrey-Solana , Xin-Nian Wang

Factorization is the central ingredient in any theoretical prediction for collider experiments. We introduce a factorization formalism that can be applied to any desired observable, like event shapes or jet observables, for any number of…

High Energy Physics - Phenomenology · Physics 2009-11-18 Christian W. Bauer , Andrew Hornig , Frank J. Tackmann

We study the transverse momentum distribution of hadrons within jets, where the transverse momentum is defined with respect to the standard jet axis. We consider the case where the jet substructure measurement is performed for an inclusive…

High Energy Physics - Phenomenology · Physics 2017-11-16 Zhong-Bo Kang , Xiaohui Liu , Felix Ringer , Hongxi Xing

We calculate the production of a photon and two jets at forward rapidity in proton-nucleus collisions, within the hybrid dilute-dense framework in the Color Glass Condensate (CGC) formalism. After obtaining the cross section for both the…

High Energy Physics - Phenomenology · Physics 2019-09-04 Tolga Altinoluk , Renaud Boussarie , Cyrille Marquet , Pieter Taels