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In this work we analyse the possibility of constraining the QCD dynamics at high energies studying the heavy quark photoproduction at LHC in coherent interactions. The rapidity distribution and total cross section for charm and bottom…

High Energy Physics - Phenomenology · Physics 2014-11-20 V. P. Goncalves , M. V. T. Machado , A. R. Meneses

Quarkonium production in hadron collisions at low transverse momentum $q_\perp \ll M$ with $M$ as the quarkonium mass can be used for probing transverse momentum dependent (TMD) gluon distributions. For this purpose, one needs to establish…

High Energy Physics - Phenomenology · Physics 2013-08-13 J. P. Ma , J. X. Wang , S. Zhao

We present a complete calculation of the higher-order perturbative QCD corrections to inelastic photoproduction of $J/\psi$ particles. A comprehensive analysis of total cross sections and differential distributions for the energy range of…

High Energy Physics - Phenomenology · Physics 2009-04-13 Michael Krämer

We present a calculation of the total cross section for top quark production based on a new perturbative resummation of gluon radiative corrections to the basic QCD subprocesses. We use Principal Value Resummation to calculate all relevant…

High Energy Physics - Phenomenology · Physics 2009-10-28 Edmond L. Berger , Harry Contopanagos

We study the impact of initial-state multiple parton radiation on transverse momentum $(q_T)$ distribution of Higgs boson produced via bottom quark fusion at hadron colliders. The shape of the resulting $q_T$ distribution is affected by the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Belyaev , Pavel M. Nadolsky , C. -P. Yuan

We provide a precise description of the Higgs boson transverse momentum distribution including top and bottom quark contributions, that is valid for transverse momenta in the range mb < pt < mt, where mb and mt are the bottom and top quark…

High Energy Physics - Phenomenology · Physics 2018-10-10 Fabrizio Caola , Jonas M. Lindert , Kirill Melnikov , Pier Francesco Monni , Lorenzo Tancredi , Christopher Wever

We study the feasibility of measuring semi-exclusive photon production \gamma + p \to \gamma + Y at HERA. The cross section of photons produced at large transverse momenta, recoiling off an inclusive system Y of limited mass, can without…

High Energy Physics - Phenomenology · Physics 2011-09-13 Paul Hoyer , Martin Maul , Andreas Metz

W bosons can be produced in the channels e+- p -> W+- + X at HERA thus allowing to probe for anomalous trilinear couplings among the gauge bosons. We discuss the NLO QCD corrections to the photoproduction of W bosons with finite transverse…

High Energy Physics - Phenomenology · Physics 2011-09-13 Kai-Peer O. Diener , Christian Schwanenberger , Michael Spira

The hadro-chemistry of bottom quarks produced in hadronic collisions encodes valuable information on the mechanism of color-neutralization in these reactions. We first compute the chemistry of bottom-hadrons in high-energy $pp$ collisions…

Nuclear Theory · Physics 2024-01-02 Min He

It has been known for a long time that the cross section for bottom-quark $b$ production at hadron collider energies exceeds theoretical expectations. An additional contribution from pair-production of light gluinos $\tilde{g}$, of mass 12…

High Energy Physics - Phenomenology · Physics 2014-11-17 Edmond L. Berger

The production of high transverse momentum piz^0-mesons has been measured in deep-inelastic e-p scattering events at low Bjorken-$x$ taken with the H1 detector at HERA. The production of high p_T particles is strongly correlated to the…

High Energy Physics - Experiment · Physics 2014-11-17 Thorsten Wengler

A Higgs boson produced in association with one or more bottom quarks is of great theoretical and experimental interest to the high-energy community. A precise prediction of its total and differential cross-section can have a great impact on…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Field , C. B. Jackson , L. Reina

Pair production of massive coloured particles in hadron collisions is accompanied by potentially large radiative corrections related to the suppression of soft gluon emission and enhanced Coulomb exchange near the production threshold. We…

High Energy Physics - Phenomenology · Physics 2010-12-01 M. Beneke , P. Falgari , S. Klein , C. Schwinn

QCD dynamics at small quark and gluon momentum fractions or large total energy, which plays a major role for HERA, the Tevatron, RHIC and LHC physics, is still poorly understood. For one of the simplest processes, namely bottom-antibottom…

High Energy Physics - Phenomenology · Physics 2009-12-30 Ph. Hagler , R. Kirschner , A. Schafer , L. Szymanowski , O. V. Teryaev

The inclusive transverse momentum and rapidity distributions for top quark production at the Fermilab Tevatron are presented both in order $\alpha_s^3$ in QCD and using the resummation of the leading soft gluon corrections in all orders of…

High Energy Physics - Phenomenology · Physics 2016-09-01 N. Kidonakis , J. Smith

We calculate the full one-loop electroweak radiative corrections to the cross section of single W-boson inclusive hadroproduction at finite transverse momentum (p_T). This includes the O(alpha) corrections to W+j production, the O(alpha_s)…

High Energy Physics - Phenomenology · Physics 2008-11-26 W. Hollik , T. Kasprzik , B. A. Kniehl

We consider QCD corrections to Higgs boson production through gluon--gluon fusion in hadron collisions. We compute the cross section, performing the all-order resummation of multiple soft-gluon emission at next-to-next-to-leading…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Catani , D. de Florian , M. Grazzini , P. Nason

We calculate the full one-loop electroweak radiative corrections, of ${\cal O}(\alpha^2\alpha_s)$, to the cross section of single $Z$-boson inclusive hadroproduction at finite transverse momentum ($p_T$). This includes the ${\cal…

High Energy Physics - Phenomenology · Physics 2015-12-09 W. Hollik , B. A. Kniehl , E. S. Shcherbakova , O. L. Veretin

The production cross sections of B$^0_\mathrm{s}$ and B$^+$ mesons are reported in proton-proton (pp) collisions recorded by the CMS experiment at the CERN LHC with a center-of-mass energy of 5.02 TeV. The data sample corresponds to an…

Nuclear Experiment · Physics 2025-08-26 CMS Collaboration

Experiments at the LHC are collecting a wealth of data with an unprecedented level of precision. As a consequence, the theoretical error is now starting to lag behind the experimental one, and a ceaseless effort is required to reduce the…

High Energy Physics - Phenomenology · Physics 2018-10-22 Luca Rottoli