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We critically examine the definition of dijet cross sections at large rapidity intervals in hadron-hadron collisions, taking proper account of the various cuts applied in a realistic experimental setup. We argue that the dependence of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. R. Andersen , V. Del Duca , S. Frixione , C. R. Schmidt , W. J. Stirling

The next to leading order (NLO) quarkonium-hadron cross section is calculated in perturbative QCD. The corresponding leading order (LO) result was performed by Peskin more than 20 years ago using the operator product expansion (OPE). In…

High Energy Physics - Phenomenology · Physics 2009-11-11 Taesoo Song , Su Houng Lee

For the first time, a next-to-leading BFKL study of the cross section and azimuthal decorrellation of Mueller Navelet jets is performed, i.e. including next-to-leading corrections to the Green's function as well as next-to-leading…

High Energy Physics - Phenomenology · Physics 2011-04-22 D. Colferai , F. Schwennsen , L. Szymanowski , S. Wallon

We discuss how the multi-Regge factorisation of QCD amplitudes can be used in the study of multi-jet processes at colliders. We describe how the next-to-leading logarithmic (NLL) BFKL evolution can be combined with energy and momentum…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jeppe R. Andersen

We compute the virtual next-to-leading corrections to the impact factors or off-shell coefficient functions in the high-energy limit. When combined with the known real corrections, these results will provide the complete NLO corrections to…

High Energy Physics - Phenomenology · Physics 2016-08-25 Vittorio Del Duca , Carl R. Schmidt

A next-to-leading order QCD calculation for single-inclusive jet photoproduction in unpolarized and longitudinally polarized lepton-hadron collisions is presented which consistently includes ``direct'' and ``resolved'' photon contributions.…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Jager

Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at $\sqrt{s} =$ 13 TeV. The signature is expected from hard…

High Energy Physics - Experiment · Physics 2021-09-08 CMS , TOTEM Collaborations

We discuss forward-backward charge asymmetries for lepton pair production in association with a large transverse momentum jet at hadron colliders. The measurement of the lepton charge asymmetry relative to the jet direction A_{FB}^j gives a…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. del Aguila , Ll. Ametller , P. Talavera

Identified-hadron (PID) $p_t$ spectra from 13 TeV $p$-$p$ collisions are compared with a two-component (soft+hard) model (TCM) that accurately distinguishes jet-related hadron production (hard component) from nonjet projectile-nucleon…

High Energy Physics - Phenomenology · Physics 2022-10-13 Thomas A. Trainor

We present next-to-leading order (NLO) perturbative-QCD calculations of the cross sections for $\ell N\to h X$ and $\ell N\to \mathrm{jet}\, X$. The main feature of these processes is that the scattered lepton is not observed, so that the…

High Energy Physics - Phenomenology · Physics 2016-06-03 Patriz Hinderer , Marc Schlegel , Werner Vogelsang

We present a flexible Monte Carlo implementation of the perturbative framework of High Energy Jets, describing multi-jet events at hadron colliders. The description includes a resummation which ensures leading logarithmic accuracy for large…

High Energy Physics - Phenomenology · Physics 2015-03-18 Jeppe R. Andersen , Jennifer M. Smillie

Measurements of differential top quark pair $\mathrm{t\overline{t}}$ cross sections using events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV containing two oppositely charged leptons are presented. The data…

High Energy Physics - Experiment · Physics 2019-03-18 CMS Collaboration

We derive an evolution equation describing the high energy behavior of the cross section for the single diffractive dissociation in deep inelastic scattering on a hadron or a nucleus. The evolution equation resums multiple BFKL pomeron…

High Energy Physics - Phenomenology · Physics 2009-10-31 Yuri V. Kovchegov , Eugene Levin

We investigate the prospects of the diffractive production of $J/\psi$ mesons at large momentum transfer $|t|$ at the future Electron Ion Collider in electron-proton collisions. In particular, we focus on the measurements of the rapidity…

High Energy Physics - Phenomenology · Physics 2021-01-27 Michal Deak , Anna M. Stasto , Mark Strikman

Massless quark and antiquark jet production at large transverse momentum in the coherent diffractive processes at hadron colliders is calculated in the two-gluon exchange parametrization of the Pomeron model. We use the helicity amplitude…

High Energy Physics - Phenomenology · Physics 2007-05-23 Feng Yuan , Kuang-Ta Chao

Mueller Navelet jets were proposed more than 25 years ago as a decisive test of BFKL dynamics at hadron colliders. We here present a complete next-to-leading BFKL study of the azimuthal decorrelation of these jets. This includes both…

High Energy Physics - Phenomenology · Physics 2013-09-12 B. Ducloué , L. Szymanowski , S. Wallon

The large center of mass energy and increasing statistical precision for a wide range of hadronic final state observables at the HERA lepton-proton collider has provided a detailed testing ground for QCD dynamics. Fully flexible…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Mirkes

The single diffractive cross section for heavy quarks production is calculated in next-no-leading order (NLO) in nucleus-nucleus collisions. Such processes are expected to occur at the LHC. We start using the hard diffractive factorization…

High Energy Physics - Phenomenology · Physics 2010-05-28 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

This work investigates the behavior of hadronic matter in the high-energy Regge-Gribov (semi-hard) regime of Quantum Chromodynamics (QCD), accessible through current and future colliders such as the LHC, EIC, and FCC. Central to the…

High Energy Physics - Phenomenology · Physics 2025-06-05 Gabriele Gatto

We present a calculation of diffractive charm jet production at hadron colliders in perturbative QCD based on the two-gluon exchange model. Differing from the previous calculations, we abandon the use of the effective color-singlet vitual…

High Energy Physics - Phenomenology · Physics 2011-01-25 Feng Yuan , Kuang-Ta Chao