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相关论文: $Z\gamma$ production at NNLO including anomalous c…

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We present details of the calculation of the $pp\to W(\to l\nu) \gamma$ process at next-to-next-to-leading order in QCD, calculated using the jettiness slicing method. The calculation is based entirely on analytic amplitudes. Because of the…

高能物理 - 唯象学 · 物理学 2021-09-16 John M. Campbell , Giuseppe De Laurentis , R. Keith Ellis , Satyajit Seth

Next-to-leading order QCD corrections to the QCD-induced $pp \rightarrow l^+l^- \gamma j j +X$ and $pp \rightarrow \bar{\nu}_l \nu_l \gamma jj+X$ processes are presented. The latter is used to find an optimal cut to reduce the contribution…

高能物理 - 唯象学 · 物理学 2014-07-31 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

Since the precise study of Higgs gauge couplings is important to test the Standard Model (SM), we calculate the complete next-to-leading order QCD(NLO QCD) correction to the $pp \to HZW^{\pm}$ production in the SM at 14 TeV LHC. Our results…

高能物理 - 唯象学 · 物理学 2015-06-17 Ning Liu , Jie Ren , Bingfang Yang

In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process $e^+e^- \to J/\psi+J/\psi$ at the $B$ factories. By including the NNLO corrections, the cross section turns negative due to the poor…

高能物理 - 唯象学 · 物理学 2024-02-13 Xu-Dong Huang , Bin Gong , Rui-Chang Niu , Huai-Min Yu , Jian-Xiong Wang

We calculate the complete next-to-leading-order (NLO) QCD corrections (including SUSY QCD corrections) to the inclusive total cross sections of the associated production processes $pp\rightarrow A^{0}\gamma+X$ in the minimal supersymmetric…

高能物理 - 唯象学 · 物理学 2015-03-17 Liang Dai , Ding Yu Shao , Chong Sheng Li , Jun Gao , Hao Zhang

We investigate the process $pp \rightarrow HZ\gamma + X$ at the $\sqrt{s}=14~{\rm TeV}$ LHC up to the QCD next-to-leading order (NLO), and discuss the kinematic distributions of final products after on-shell Higgs and $Z$-boson decays by…

高能物理 - 唯象学 · 物理学 2015-05-14 Xiong Shou-Jian , Ma Wen-Gan , Guo Lei , Zhang Ren-You , Chen Chong , Song Mao

We present the complete next-to-leading order (NLO) QCD corrections to the top quark associated with $\gamma$ production induced by model-independent $tq\gamma$ and $tqg$ flavor-changing neutral-current (FCNC) couplings at hadron colliders,…

高能物理 - 唯象学 · 物理学 2015-03-18 Yue Zhang , Bo Hua Li , Chong Sheng Li , Jun Gao , Hua Xing Zhu

We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are $pp\to H$, $W^\pm$, $Z$, $W^\pm H$, $ZH$, $W^\pm\gamma$,…

高能物理 - 唯象学 · 物理学 2022-07-29 John M. Campbell , R. Keith Ellis , Satyajit Seth

In this paper we present a next-to-next-to-leading order (NNLO) calculation of the process $pp\rightarrow \gamma\gamma$ that we have implemented into the parton level Monte Carlo code MCFM. We do not find agreement with the previous…

高能物理 - 唯象学 · 物理学 2021-09-15 John M. Campbell , R. Keith Ellis , Ye Li , Ciaran Williams

The next-to-leading-order electroweak corrections to $pp\to l^+l^-/\bar\nu\nu+\gamma+X$ production, including all off-shell effects of intermediate Z bosons in the complex-mass scheme, are calculated for LHC energies, revealing the…

高能物理 - 唯象学 · 物理学 2016-03-23 Ansgar Denner , Stefan Dittmaier , Markus Hecht , Christian Pasold

We report on a detailed investigation of the next-to-leading order (NLO) QCD corrections to $W\gamma$+jet production at the Tevatron and the LHC using a fully-flexible parton-level Monte Carlo program. We include the full leptonic decay of…

高能物理 - 唯象学 · 物理学 2011-04-22 Francisco Campanario , Christoph Englert , Michael Spannowsky

In this paper, we calculate the next-to-next-to-leading-order (NNLO) QCD corrections to $e^+e^- \to J/\psi+\eta_c$ at the $B$ factories. After including the NNLO corrections, the cross section of $e^+e^- \to J/\psi+\eta_c$ is enhanced by…

高能物理 - 唯象学 · 物理学 2023-02-08 Xu-Dong Huang , Bin Gong , Jian-Xiong Wang

The paper presents for the first time a novel idea of exploiting asymmetry between differential cross sections of the $Z\gamma$ pair-production in proton-proton ($pp$) collisions for the final states of a charged-lepton pair plus a photon…

高能物理 - 唯象学 · 物理学 2024-01-15 Kadir Saygin

In this paper we present a calculation of the $\gamma+j$ process at next-to-next-to-leading order (NNLO) in QCD and compare the resulting predictions to 8 TeV CMS data. We find good agreement with the shape of the photon $p_T$ spectrum,…

高能物理 - 唯象学 · 物理学 2017-08-09 John M. Campbell , R. Keith Ellis , Ciaran Williams

We consider the production of Wgamma and Zgamma pairs at the LHC, and report on the fully differential computation of next-to-next-to-leading order (NNLO) corrections in QCD perturbation theory. The calculation includes leptonic…

高能物理 - 唯象学 · 物理学 2016-01-26 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev

We address the long-standing problem of negative decay and production rates in perturbative QCD for exclusive processes by proposing amplitude-level NRQCD factorization as a systematic prescription. Building on this, we present the first…

高能物理 - 唯象学 · 物理学 2026-04-09 Chao Zeng , Bin Gong , Jian-Xiong Wang , Ruichang Niu , Xu-Dong Huang , Cong Li

We study QCD corrections for the associated production of a single top quark and a photon ($tq\gamma$ production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts,…

高能物理 - 唯象学 · 物理学 2022-08-08 Nikolaos Kidonakis , Nodoka Yamanaka

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 report on the first calculation of next-to-next-to-leading order (NNLO) QCD corrections to the inclusive production of ZZ pairs at hadron colliders. Numerical results are presented for pp collisions with centre-of-mass energy…

高能物理 - 唯象学 · 物理学 2015-06-19 F. Cascioli , T. Gehrmann , M. Grazzini , S. Kallweit , P. Maierhöfer , A. von Manteuffel , S. Pozzorini , D. Rathlev , L. Tancredi , E. Weihs

We give a brief overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to Z+jet production in hadronic collisions. Phenomenological results are presented which comprise various differential distributions for…

高能物理 - 唯象学 · 物理学 2016-07-07 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , T. A. Morgan
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