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Related papers: Non-factorisable contribution to $t$-channel singl…

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Single top quark is mainly produced through the $t$-channel W boson exchange $q + b \rightarrow q' + t$ at LHC. This process probes Wtb vertex directly and can be used to measure the CKM matrix element $V_{tb}$ or to constrain the bottom…

High Energy Physics - Phenomenology · Physics 2022-07-22 Christian Brønnum-Hansen , Jérémie Quarroz , Chiara Signorile-Signorile , Chen-Yu Wang

We present a fully-differential calculation of the NNLO QCD corrections to the t-channel mechanism for producing single top quarks at the LHC. We work in the structure function approximation, computing QCD corrections to the light- and…

High Energy Physics - Phenomenology · Physics 2015-06-19 Mathias Brucherseifer , Fabrizio Caola , Kirill Melnikov

We report on a recent computation of the non-factorisable contribution to the two-loop helicity amplitude for $t$-channel single-top production arXiv:2108.09222. This is the last missing piece of the two-loop virtual corrections to this…

High Energy Physics - Phenomenology · Physics 2022-01-11 Christian Brønnum-Hansen , Jérémie Quarroz , Chen-Yu Wang

We compute the non-factorisable contribution to the two-loop helicity amplitude for $t$-channel single-top production, the last missing piece of the two-loop virtual corrections to this process. Our calculation employs analytic reduction to…

High Energy Physics - Phenomenology · Physics 2021-12-01 Christian Brønnum-Hansen , Kirill Melnikov , Jérémie Quarroz , Chen-Yu Wang

We report on a fully differential next-to-next-to-leading order (NNLO) calculation of s-channel single top (anti-)quark production with a semi-leptonic decay at the LHC, neglecting the color correlation between the light and heavy quark…

High Energy Physics - Phenomenology · Physics 2018-10-10 Ze Long Liu , Jun Gao

We present a calculation of O(\alpha_s) contributions to the process of t-channel single-top production and decay, which include virtual and real corrections arising from interference of the production and decay subprocesses. The…

High Energy Physics - Phenomenology · Physics 2014-11-21 Pietro Falgari , Paul Mellor , Adrian Signer

We calculate the one-loop non-factorizable QCD corrections to the production and decay of pairs of top quarks at various collider experiments. These non-factorizable corrections interconnect the different production and decay stages of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Beenakker , F. A. Berends , A. P. Chapovsky

We present a fully differential next-to-next-to-leading order calculation of t-channel single top-quark production and decay at the LHC under narrow-width approximation and neglecting cross-talk between incoming protons. We focus on the…

High Energy Physics - Phenomenology · Physics 2016-11-01 Edmond L. Berger , Jun Gao , C. -P. Yuan , Hua Xing Zhu

This letter details and discusses the next-to-leading order QCD corrections to $t$-channel electro-weak $W^+ b j$ production, where finite top-width effects are consistently taken into account. The computation is done within the aMC@NLO…

High Energy Physics - Phenomenology · Physics 2015-06-16 A. S. Papanastasiou , R. Frederix , S. Frixione , V. Hirschi , F. Maltoni

We compute the order alpha_s^2 corrections to the one particle inclusive electroproduction cross section of hadrons with non vanishing transverse momentum. We perform the full calculation analytically, and obtain the expression of the…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Daleo , D. de Florian , R. Sassot

We describe the computation of the $\mathcal{O}(\alpha^3)$ corrections for single top (and single anti-top) production in the $t$-channel at hadron colliders. We show also The genuine one loop SUSY contribution to these processes. Such…

High Energy Physics - Phenomenology · Physics 2010-11-11 E. Mirabella

We present a study of single top and single antitop quark production in the t-channel mode at the LHC pp collider at 7 TeV, 10 TeV and 14 TeV, including next-to-leading order QCD corrections to the production and decay of the top quark. We…

High Energy Physics - Phenomenology · Physics 2011-02-23 Reinhard Schwienhorst , Qing-Hong Cao , C. -P. Yuan , Charles Mueller

We compute the O(alpha_s) QCD corrections to the partonic process gg -> t-tbar-Z at the LHC. This partonic channel is the dominant component of the scattering process pp -> t-tbar-Z, which will be important for measuring the t-tbar-Z…

High Energy Physics - Phenomenology · Physics 2008-11-26 Achilleas Lazopoulos , Kirill Melnikov , Frank Petriello

We present a study of electroweak production of top and antitop quarks in the s-channel mode at the LHC, including next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to the production and decay of the single (anti)top…

High Energy Physics - Phenomenology · Physics 2010-04-29 Sarah Heim , Qing-Hong Cao , Reinhard Schwienhorst , C. -P. Yuan

In this work we present a calculation of both t-channel and s-channel single-top production at next-to-leading order in QCD for the Tevatron and for the LHC at a centre-of-mass energy of 7 TeV. All the cross sections and kinematical…

High Energy Physics - Phenomenology · Physics 2011-05-19 P. Falgari , F. Giannuzzi , P. Mellor , A. Signer

We calculate the O(alpha_s) and O(alpha_W m_t^2/M_W^2) corrections to the production of a single top quark via the weak process q qbar -> t bbar at the Fermilab Tevatron and the CERN Large Hadron Collider. An accurate calculation of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Martin C. Smith , Scott S. Willenbrock

It is demonstrated how perturbative O(alpha_s^2) relativistic corrections to the non-relativistic stable heavy quark-antiquark production cross section in e^+e^- annihilation based on a Coulombic QCD potential can be systematically…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. H. Hoang

We present a detailed phenomenological study of the next-to-next-to-leading order (NNLO) QCD corrections for $t$-channel single top (anti-)quark production and its semi-leptonic decay at the CERN Large Hadron Collider (LHC). We find the…

High Energy Physics - Phenomenology · Physics 2020-04-02 Edmond L. Berger , Jun Gao , Hua Xing Zhu

Non-singlet ${\cal{O}}(\alpha_s^2)$ corrections from light quarks are calculated analytically for the massive quark-antiquark pair production rates through the vector, axial-vector, scalar and pseudoscalar currents for all energies above…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. H. Hoang , T. Teubner

This paper presents a comprehensive study of top quark phenomenology within the Non-Commutative Standard Model. We calculate non-commutative corrections to the squared amplitudes for top quark pair production, as well as for single top…

High Energy Physics - Phenomenology · Physics 2024-09-13 Mohamed El Arebi Gadja , Yazid Delenda , Lamine Khodja
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