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Jets are extended multipartonic systems and serve as a powerful tool for investigating the dynamics of emergent phenomena driven by many body QCD interactions. In heavy ion collisions, starting from their production during the perturbative…

High Energy Physics - Phenomenology · Physics 2025-05-26 Balbeer Singh

This paper is a part of a series of works where we in detail examine the concept of Transverse Momentum Dependent (TMD), or k_T, factorization, which is frequently encountered in the literature and is widely used in the phenomenological…

High Energy Physics - Phenomenology · Physics 2012-04-03 Emil Avsar

We analyze three jet production in the central-forward and forward rapidity regions in proton-proton and proton-lead collisions at LHC energies. Our calculation relies on high-energy factorization with a single off-shell gluon obeying small…

High Energy Physics - Phenomenology · Physics 2014-07-11 Andreas van Hameren , Piotr Kotko , Krzysztof Kutak

We derive the transverse momentum dependent (TMD) factorization for heavy quark pair production in deep inelastic scattering, where the total transverse momentum is much smaller than the invariant mass of the pair. The factorization is…

High Energy Physics - Phenomenology · Physics 2015-06-17 Ruilin Zhu , Peng Sun , Feng Yuan

We develop the QCD description of the breakup of photons into forward dijets in small-x deep inelastic scattering off nuclei in the saturation regime. Based on the color dipole approach, we derive a multiple scattering expansion for…

High Energy Physics - Phenomenology · Physics 2009-11-10 N. N. Nikolaev , W. Schäfer , B. G. Zakharov , V. R. Zoller

We propose a new phenomenological approach to establish QCD factorization of jet cross sections in the heavy-ion environment. Starting from a factorization formalism in proton-proton collisions, we introduce medium modified jet functions to…

High Energy Physics - Phenomenology · Physics 2019-07-03 Jian-Wei Qiu , Felix Ringer , Nobuo Sato , Pia Zurita

We discuss Transverse Momentum Dependent (TMD) gluon distributions within high energy factorization at next-to-leading order in the strong coupling within the framework of Lipatov's high energy effective action. We provide a detailed…

High Energy Physics - Phenomenology · Physics 2021-09-22 Martin Hentschinski

We compare results of $k_t$-factorization approach and next-to-leading order collinear-factorization approach for dijet correlations in proton-proton collisions at RHIC energies. We discuss correlations in azimuthal angle as well as…

High Energy Physics - Phenomenology · Physics 2009-04-16 A. Szczurek , A. Rybarska , G. Slipek

We compare results of $k_t$-factorization approach and next-to-leading order collinear-factorization approach for dijet correlations in proton-proton collisions at RHIC energies. We discuss correlations in azimuthal angle as well as…

High Energy Physics - Phenomenology · Physics 2008-11-26 Antoni Szczurek , Anna Rybarska , Gabriela Slipek

Employing the recently developed open quantum system Effective Field Theory framework, we investigate jet production and evolution in a dense nuclear medium in electron-ion/heavy-ion collisions. We confirm that the frequent monitoring of…

High Energy Physics - Phenomenology · Physics 2024-12-30 Balbeer Singh , Varun Vaidya

I report on the recent result of comparison of forward-forward dijet correlations in azimuthal angle as measured by the ATLAS collaboration in the proton-proton and proton-lead collisions to calculations within ITMD factorization framework…

High Energy Physics - Phenomenology · Physics 2019-07-23 Krzysztof Kutak

We investigate associated prompt photon and hadronic jet production at the LHC energies using the $k_T$-factorization approach. Our consideration is based on the $\mathcal O(\alpha\alpha_s^2)$ off-shell gluon-gluon fusion subprocess…

High Energy Physics - Phenomenology · Physics 2019-09-10 A. V. Lipatov , M. A. Malyshev , H. Jung

We investigate inclusive forward single-hadron production in high-energy proton--proton collisions using a CGC-inspired Monte Carlo event generator, MC-CGC. We carried out a systematic study of the sensitivity of the running-coupling…

High Energy Physics - Phenomenology · Physics 2026-05-18 Hirotsugu Fujii , Tetsufumi Hirano , Kazunori Itakura , Yasushi Nara , Shujun Zhao

We consider the associated production of Higgs boson and hadronic jet(s) in $pp$ collisions at the LHC for the first time using the $k_T$-factorization approach. Our analysis is based on the off-shell gluon-gluon fusion subprocess, where…

High Energy Physics - Phenomenology · Physics 2021-05-26 A. V. Lipatov , M. A. Malyshev

The next-to-leading corrections to the jet vertex which is relevant for the Mueller-Navelet jets production in hadronic collisions and for the forward jet cross section in lepton-hadron collisions are presented in the context of a k_t…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. P. Vacca

We discuss the measurement of gluon transverse momentum distribution (TMD) in dijet and heavy hadron pair (HHP) production in semi-inclusive deep inelastic scattering. The factorization of these processes in impact parameter space shows the…

High Energy Physics - Phenomenology · Physics 2022-03-14 Rafael F. del Castillo , Miguel G. Echevarria , Yiannis Makris , Ignazio Scimemi

Transverse-momentum-dependent (TMD) gluon distributions have different operator definitions, depending on the process under consideration. We study that aspect of TMD factorization in the small-x limit, for the various unpolarized TMD gluon…

High Energy Physics - Phenomenology · Physics 2017-01-10 C. Marquet , E. Petreska , C. Roiesnel

We derive a factorization formula for inclusive jet production in heavy-ion collisions using the tools of Effective Field Theory (EFT). We show how physics at widely separated scales in this process can be systematically separated by…

High Energy Physics - Phenomenology · Physics 2025-04-02 Yacine Mehtar-Tani , Felix Ringer , Balbeer Singh , Varun Vaidya

We study the cross section for dijet production via direct photons, as seen at the HERA collider. Rather than assuming the standard factorisation formula for the cross section (where the incoming partons are assumed to be on-shell), we use…

High Energy Physics - Phenomenology · Physics 2009-09-25 J. R Forshaw , R. G. Roberts

The present work is devoted to study the high-energy $QCD$ events, such as the di-jet productions from proton-proton inelastic collisions at the $LHC$ in the forward-center and the forward-forward configurations, using the $unintegrated$…

High Energy Physics - Phenomenology · Physics 2017-08-23 M. Modarres , M. R. Masouminia , R. Aminzadeh-Nik , H. Hosseinkhani