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相关论文: One-loop QCD and electroweak corrections to $t\bar…

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We present the first analytical results for the ${\cal O}(\alpha\alpha_s)$ corrections to the total cross section for the inclusive production of an on-shell $Z$ boson at hadron colliders. We include the complete set of contributions, with…

高能物理 - 唯象学 · 物理学 2020-07-14 Roberto Bonciani , Federico Buccioni , Narayan Rana , Alessandro Vicini

We have studied the effect of one-loop logarithmic electroweak radiative corrections on WZ and $W\gamma$ production processes at the LHC. We present analytical results for the leading-logarithmic electroweak corrections to the corresponding…

高能物理 - 唯象学 · 物理学 2008-11-26 Elena Accomando , Ansgar Denner , Stefano Pozzorini

We calculate the one-loop supersymmetric QCD corrections to the width of the $W$-boson. We find that these are of order $\sim {{ \alpha_s} \over {\pi}} {1 \over 20} { {M^2_W} \over {M_S^2}} \Gamma_{u {\bar d}}$, where $M_S$ is the…

高能物理 - 唯象学 · 物理学 2011-02-01 A. B. Lahanas , V. C. Spanos

Next-to-Leading-Order(NLO) QCD corrections to J/jpsi plus eta_c production in e+e- annihilation at sqrt{s}=10.6 GeV is calculated in this paper, and an analytic result is obtained. By choosing proper physical parameters, a K factor (ratio…

高能物理 - 唯象学 · 物理学 2008-11-26 Bin Gong , Jian-Xiong Wang

In this paper, I study final state QCD radiative corrections to off-shell single top production via decaying $W$ at hadron collider energies. The tree level Breit-Wigner distribution of the produced top invariant mass is distorted by final…

高能物理 - 唯象学 · 物理学 2009-10-28 R. Pittau

We present the calculation of the most important electroweak corrections to dijet production at the LHC and the Tevatron, comprising tree-level effects of O(\alpha_s\alpha,\alpha^2) and weak loop corrections of O(\alpha_s^2\alpha). Although…

高能物理 - 唯象学 · 物理学 2015-06-11 Stefan Dittmaier , Alexander Huss , Christian Speckner

QCD corrections to the electron positron annihilation cross-section into hadrons and to the hadronic $Z$ boson decay rate are reviewed. Formal developments are introduced in a form particularly suited for practical applications. These…

高能物理 - 唯象学 · 物理学 2009-10-28 K. G. Chetyrkin , J. H. Kühn , A. Kwiatkowski

In this article, we consider the transverse momentum ($q_T$) distribution of $W$ and $Z$ bosons produced in hadronic collisions. We combine the $q_T$ resummation for QED and QCD radiation including the QED soft emissions from the $W$ boson…

高能物理 - 唯象学 · 物理学 2023-08-02 Andrea Autieri , Leandro Cieri , Giancarlo Ferrera , German F. R. Sborlini

In this article we calculate the next-to-leading order (NLO) QCD corrections for single on-shell top-quark production in association with two jets at proton-proton colliders. The tW channel is assumed to be measured independently. The QCD…

高能物理 - 唯象学 · 物理学 2020-01-29 Stefan Mölbitz , Le Duc Ninh , Peter Uwer

We compute the full one-loop radiative corrections (including both weak and QED corrections) for two processes $e^{+}e^{-}\to Z h^0,H^0 A^{0}$ in the Inert Higgs Doublet model (IHDM). Up to $O(\alpha_{w})$ and $O(\alpha_{em})$ order, we use…

高能物理 - 唯象学 · 物理学 2021-06-02 Hamza Abouabid , Abdesslam Arhrib , Rachid Benbrik , Jaouad El Falaki , Bin Gong , Wenhai Xie , Qi-Shu Yan

In this article we evaluate mass corrections up to $O((m^2/q^2)^6)$ to the three-loop polarization function induced by an axial-vector current. Special emphasis is put on the evaluation of the singlet diagram which is absent in the vector…

高能物理 - 唯象学 · 物理学 2011-09-13 R. Harlander , M. Steinhauser

Electroweak (EW) triboson production processes with at least one heavy gauge boson are of increasing interest at the Large Hadron Collider (LHC) as direct precision probes of one of the least-tested sectors of the Standard Model (SM), the…

高能物理 - 唯象学 · 物理学 2022-05-18 Huanfeng Cheng , Doreen Wackeroth

The $e^+e^- \to \gamma\gamma b\bar b$ is an irreducible background process in measuring the $H^0 \to \gamma\gamma$ decay width, if Higgs boson is produced in association with a $Z^0$-boson which subsequently decays via $Z^0 \to b\bar b$ at…

高能物理 - 唯象学 · 物理学 2012-02-02 Guo Lei , Zhang Ren-You , Ma Wen-Gan , Han Liang

The cross-section for W^+W^- \to W^+W^- with arbitrarily polarized W bosons is calculated within the Electroweak Standard Model including the complete virtual and soft-photonic O(alpha) corrections. We show the numerical importance of the…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Denner , T. Hahn

We report on the effect that one-loop radiative corrections to the chargino pair production cross section has on the determination of the fundamental parameters of the theory. We work in the context of electron-positron colliders with…

高能物理 - 唯象学 · 物理学 2007-05-23 Marco Aurelio Diaz

The process $p\,\pbar \rightarrow W^{\pm}Z + X \rightarrow \ell^\pm_1 \nu_1 \ell_2^+ \ell_2^- + X$ is calculated to ${\cal O}(\alpha_s)$ for general $C$ and $P$ conserving $WWZ$ couplings. At the Tevatron center of mass energy, the QCD…

高能物理 - 唯象学 · 物理学 2016-09-01 U. Baur , T. Han , J. Ohnemus

Electroweak Sudakov logarithms at high energy, of the form alpha/sin^2 theta_W^n log^m s/M_{Z,W}^2, are summed using effective theory (EFT) methods. The exponentiation of Sudakov logarithms and factorization is discussed in the EFT…

高能物理 - 唯象学 · 物理学 2008-11-26 Jui-yu Chiu , Randall Kelley , Aneesh V. Manohar

We investigate one-loop weak corrections to the production cross section of two $b$-jets at Tevatron and Large Hadron Collider (LHC). We establish that they are small at inclusive level but dominant in exclusive observables that have a…

高能物理 - 唯象学 · 物理学 2009-11-10 E. Maina , S. Moretti , M. R. Nolten , D. A. Ross

The $O(\alpha_{ew}m_{t(b)}^{2}/m_{W}^{2})$ and $O(\alpha_{ew} m_{t(b)}^4/m_W^4)$ supersymmetric electroweak corrections to the cross section for $W^{\pm}H^{\mp}$ associated production at the LHC are calculated in the minimal supersymmetric…

高能物理 - 唯象学 · 物理学 2009-10-31 Ya Sheng Yang , Chong Sheng Li , Li Gang Jin , Shou Hua Zhu

We find the leading electroweak corrections to the Lagrangians of heavy-quark effective theory and nonrelativistic QCD. These corrections appear in the Wilson coefficients of the two- and four-quark operators and are considered here at…

高能物理 - 唯象学 · 物理学 2023-06-06 B. Assi , B. A. Kniehl , J. Soto