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相关论文: 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 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…

高能物理 - 唯象学 · 物理学 2024-09-13 Mohamed El Arebi Gadja , Yazid Delenda , Lamine Khodja
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