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Related papers: Four-jet production in kt-factorization: single an…

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Jets are collimated clusters of particles formed by the hadronization of partons following a hard interaction. In proton-proton ($pp$) collisions at the Relativistic Heavy Ion Collider (RHIC), jet production is dominated by $gg$ and $qg$…

High Energy Physics - Experiment · Physics 2026-03-31 The STAR Collaboration

We study the photoproduction of isolated prompt photons associated with hadron jets in the framework of the parton Reggeization approach. The main improvements with respect to previous studies in the k_T-factorization framework include the…

High Energy Physics - Phenomenology · Physics 2016-05-20 B. A. Kniehl , M. A. Nefedov , V. A. Saleev

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 introduce the transverse momentum dependent fragmenting jet function (TMDFJF), which appears in factorization theorems for cross sections for jets with an identified hadron. These are functions of $z$, the hadron's longitudinal momentum…

High Energy Physics - Phenomenology · Physics 2017-06-09 Reggie Bain , Yiannis Makris , Thomas Mehen

The measurement of the triple-differential dijet production cross section as a function of the average transverse momentum $p_{T,\textrm{avg}}$, half the rapidity separation $y^{*}$, and the boost $y_{b}$ of the two leading jets in the…

High Energy Physics - Phenomenology · Physics 2019-10-04 Aude Gehrmann-De Ridder , Thomas Gehrmann , E. W. N. Glover , Alexander Huss , Joao Pires

We study the transverse momentum dependent (TMD) parton distributions in the newly proposed quasi-parton distribution function framework in Euclidean space. A soft factor subtraction is found to be essential to make the TMDs calculable on…

High Energy Physics - Phenomenology · Physics 2015-04-16 Xiangdong Ji , Peng Sun , Xiaonu Xiong , Feng Yuan

We discuss hadroproduction of 4-jet final state at the LHC within the double-parton scattering (DPS) mechanism in the context of large-rapidity-distance jets. For planned and/or being currently performed high energy experiments this is the…

High Energy Physics - Phenomenology · Physics 2014-07-14 Rafal Maciula , Antoni Szczurek

We investigate the soft spectator scattering contribution for the FF $F_{1}$. We focus our attention on factorization of the hard-collinear scale $\sim Q\Lambda$ corresponding to transition from SCET-I to SCET-II. We compute the leading…

High Energy Physics - Phenomenology · Physics 2015-06-04 Nikolai Kivel

In this paper we study the factorization and resummation of s-channel single top quark production in the Standard Model at both the Tevatron and the LHC. We show that the production cross section in the threshold limit can be factorized…

High Energy Physics - Phenomenology · Physics 2011-04-04 Hua Xing Zhu , Chong Sheng Li , Jian Wang , Jia Jun Zhang

In this review, we describe the status of transverse momentum dependence (TMD) in double parton scattering (DPS). The different regions of TMD DPS are discussed, and expressions given for the DPS cross section contributions that make use of…

High Energy Physics - Phenomenology · Physics 2019-02-18 Jonathan R. Gaunt , Tomas Kasemets

Two-jet cross sections in deep inelastic scattering at HERA are calculated in next-to-leading order. The QCD corrections are implemented in a new $ep\rightarrow n$ jets event generator, MEPJET, which allows to analyze arbitrary jet…

High Energy Physics - Phenomenology · Physics 2009-10-28 Erwin Mirkes , Dieter Zeppenfeld

In this letter we suggest the generalization of $k_T$-factorization formula for inclusive gluon production for the dense-dense parton system scattering. It turnes out that the soft gluon production with transverse momentum $p_T$ is…

High Energy Physics - Phenomenology · Physics 2010-12-23 Eugene Levin

Results on inclusive jet production in proton-antiproton collisions at sqrt(s) =1.96 TeV based on 1 fb-1 of CDF Run II data are presented. Measurements are preformed using the k_T algorithm in a wide range of jet transverse momentum and jet…

High Energy Physics - Experiment · Physics 2007-05-23 Olga Norniella

Searches for the kinematic selection criteria for estimation of multiple parton interaction fraction in 14 TeV pp collisions are presented using the eikonalization of the cross section implemented in the Herwig++ Monte Carlo event…

High Energy Physics - Phenomenology · Physics 2012-06-21 Miroslav Myska

Motivated by the need to correct the potentially large kinematic errors in approximations used in the standard formulation of perturbative QCD, we reformulate deeply inelastic lepton-proton scattering in terms of gauge invariant, universal…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. C. Collins , T. C. Rogers , A. M. Staśto

We examine both analytically and numerically the validity of factorization for the double dipole scattering amplitude T^{(2)} which appears on the right hand side of the BK--JIMWLK equation. We demonstrate that, if one uses a dilute object…

High Energy Physics - Phenomenology · Physics 2008-11-26 Emil Avsar , Yoshitaka Hatta

We describe how unintegrated parton distributions can be calculated from conventional integrated distributions. We extend and improve the 'last-step' evolution approach, and explain why doubly-unintegrated parton distributions are…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. Watt , A. D. Martin , M. G. Ryskin

Factorization, in the sense defined for inclusive hard scattering, is discussed for diffractive hard scattering. A factorization theorem similar to its inclusive counterpart is presented for diffractive DIS. For hadron-hadron diffractive…

High Energy Physics - Phenomenology · Physics 2009-10-30 Arjun Berera

We discuss production of two pairs of $c \bar c$ in proton-proton collisions at the LHC. Both double-parton scattering (DPS) and single-parton scattering (SPS) contributions are included in the analysis. Each step of DPS is calculated…

High Energy Physics - Phenomenology · Physics 2013-07-01 Antoni Szczurek , Rafal Maciula

We present a study within the kT-factorisation scheme on single bottom quark production at the LHC. In particular, we calculate the rapidity and transverse momentum differential distributions for single bottom quark/anti-quark production.…

High Energy Physics - Phenomenology · Physics 2015-10-28 Grigorios Chachamis , Michal Deak , Martin Hentschinski , German Rodrigo , Agustin Sabio Vera