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Related papers: Heavy Quarks Photoproduction

200 papers

The state of the art of the theoretical calculations for heavy quarks photoproduction is reviewed. The full fixed order next-to-leading order massive calculation and the resummation of large log(p_T/m) terms for differential cross sections…

High Energy Physics - Phenomenology · Physics 2007-05-23 Matteo Cacciari

We illustrate a formalism that allows to match the next-to-leading order cross section for the photoproduction of heavy quarks to the cross section obtained by resumming logarithms of $\pt/m$ to the next-to-leading accuracy, thus giving a…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. Frixione , M. Cacciari , P. Nason

We describe a next-to-leading-order calculation of the fully exclusive parton cross section for the photoproduction of heavy quarks. We use our result to compute quantities of interest for current fixed-target experiments. We discuss…

High Energy Physics - Phenomenology · Physics 2011-01-25 S. Frixione , M. Mangano , P. Nason , G. Ridolfi

We calculate the photoproduction of heavy quarks in proton-proton collisions at RHIC, Tevatron and LHC energies. The integrated cross section and the rapidity distributions for open charm and bottom production are computed employing sound…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. P. Goncalves , M. V. T. Machado

Complete analytical results for the production of heavy-quark pairs by polarized and unpolarized photons in next-to-leading order are presented. Two-, three- and two plus three-jet cross sections for total photon spin $J_z=0,\pm 2$ are…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. Kamal , Z. Merebashvili , A. P. Contogouris

We report on QCD radiative corrections to heavy quark production valid at high energy. The formulae presented will allow a matched calculation of the total cross section which is correct at $O(\as^3)$ and includes resummation of all terms…

High Energy Physics - Phenomenology · Physics 2010-02-03 R. D. Ball , R. K. Ellis

Results of our next-to-leading order analytic calculation for longitudinally polarized photoproduction of heavy quarks are presented. Certain differential cross sections and the corresponding asymmetries are computed for energy ranges…

High Energy Physics - Phenomenology · Physics 2017-08-23 Z. V. Merebashvili , A. P. Contogouris , G. Grispos

The results of a next-to-leading order calculation of heavy quark production in longitudinally polarized photon-nucleon collisions are presented. At c.m. energy $\sqrt{S}=10$ GeV, for $\vec \gamma +\vec p \to c+X$, cross sections…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. P. Contogouris , Z. Merebashvili , G. Grispos

Results of analytical calculations for heavy quark systems in higher orders of perturbation theory are overviewed. I discuss baryons with one finite mass quark in the next-to-leading order and heavy quark pair production near the threshold…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. A. Pivovarov

We calculate the inclusive and diffractive photoproduction of heavy quarks in proton-proton collisions at Tevatron and LHC energies, where the photon reaches energies larger than those ones accessible at DESY-HERA. The integrated cross…

High Energy Physics - Phenomenology · Physics 2009-09-02 V. P. Goncalves , M. V. T. Machado , A. R. Meneses

We review theoretical calculations for top-quark production that include complete next-to-leading-order QCD corrections as well as higher-order soft-gluon corrections from threshold resummation. We discuss in detail the differences between…

High Energy Physics - Phenomenology · Physics 2015-05-30 Nikolaos Kidonakis , Ben D. Pecjak

The cross sections of heavy quark production in $pp$ collision and for their photo- and electroproduction are calculated in the framework of QCD. The virtual nature of the interacting gluons as well as their transverse motion and different…

High Energy Physics - Phenomenology · Physics 2011-01-25 M. G. Ryskin , Yu. M. Shabelski , A. G. Shuvaev

I present a review of selected topics in the computation of heavy flavour cross sections in photon-hadron collisions.

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Frixione

In this contribution we report on the calculations of heavy-quark photoproduction using the semihard approach, emphasizing the results obtained with the phenomenological saturation model.

High Energy Physics - Phenomenology · Physics 2007-05-23 C. Brenner Mariotto , M. B. Gay Ducati , M. V. T. Machado

We calculate the nuclear inclusive and diffractive cross sections for heavy quark photoproduction within a phenomenological saturation approach. The nuclear cross section is obtained by the extension of the saturation model through…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. P. Goncalves , M. V. T. Machado

We summarize calculations of the cross section for top quark production at hadron colliders within the context of perturbative quantum chromodynamics, including resummation of the effects of initial-state soft gluon radiation to all orders…

High Energy Physics - Phenomenology · Physics 2007-05-23 Edmond L. Berger , Harry Contopanagos

We evaluate the cross sections for new heavy fermion production at three Large Hadron Collider energies accurate to next-to-leading order in perturbative quantum chromodynamics. We treat the cases of pair production of heavy quarks via…

High Energy Physics - Phenomenology · Physics 2015-03-13 Edmond L. Berger , Qing-Hong Cao

A complete next-to-leading order calculation of longitudinally polarized heavy quark photoproduction is presented. All results of the purturbative calculation are given in detail. For reactions and energies of interest cross sections…

High Energy Physics - Phenomenology · Physics 2014-11-17 Z. Merebashvili , A. P. Contogouris , G. Grispos

We present our predictions for the inclusive production of two heavy quark-antiquark pairs, separated by a large rapidity interval, in the collision of (quasi-)real photons at the energies of LEP2 and of some future electron-positron…

High Energy Physics - Phenomenology · Physics 2018-01-17 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

Results of a next-to-leading order calculation of the inclusive cross section for a photon and a heavy quark (charm or bottom), $p \bar p / pp \to \gamma +Q +X$, are presented. Pointlike photon subprocesses through ${\cal…

High Energy Physics - Phenomenology · Physics 2009-11-06 T. P. Stavreva , J. F. Owens
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