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相关论文: Extending the Matrix Element Method to Next-to-Lea…

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The LEP centre of mass energy has been increased since 1996 in the aim of producing the Higgs boson. The SM Higgs boson search has been pursued in the four LEP collaborations exploiting final states with higher branching ratios. In the…

高能物理 - 唯象学 · 物理学 2007-05-23 Enrico Piotto

We consider the production of four charged leptons in hadron collisions and compute the next-to-leading order (NLO) QCD corrections to the loop-induced gluon fusion contribution by consistently accounting for the Higgs boson signal, its…

高能物理 - 唯象学 · 物理学 2021-06-30 Massimiliano Grazzini , Stefan Kallweit , Marius Wiesemann , Jeong Yeon Yook

In this paper, we present results at next-to-leading order (NLO) QCD for photon pair production in association with two jets via vector boson scattering within the Standard Model (SM), and also in an effective field theory framework with…

高能物理 - 唯象学 · 物理学 2020-07-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Ivan Rosario

We present a first computation of the NNLO QCD cross section at the LHC for the production of four leptons from a Higgs boson decaying into W bosons. We study the cross section for a Higgs boson mass Mh = 165 GeV; around this value a…

高能物理 - 唯象学 · 物理学 2008-11-26 Charalampos Anastasiou , Guenther Dissertori , Fabian Stoeckli

Next-to-Leading-Order (NLO) effects play a crucial role in tests of the Standard Model (SM), and require careful theoretical evaluation. Electroweak physics, which has just entered the precision age, is an excellent place to search for new…

核理论 · 物理学 2010-02-11 A. Aleksejevs , S. Barkanova

We present the calculations of the next-to-leading order (NLO) QCD corrections to the inclusive total cross sections for the associated production of the $W^{\pm}H^{\mp}$ through $b\bar{b}$ annihilation in the Minimal Supersymmetric…

高能物理 - 唯象学 · 物理学 2008-11-26 Jun Gao , Chong Sheng Li , Zhao Li

The second part of this review is devoted to the Higgs sector of the Minimal Supersymmetric Standard Model. The properties of the neutral and charged Higgs bosons of the extended Higgs sector are summarized and their decay modes and…

高能物理 - 唯象学 · 物理学 2009-09-29 Abdelhak Djouadi

We present predictions for hadronic decays of the Higgs boson at next-to-next-to-leading order (NNLO) in QCD matched with parton shower based on the POWHEG framework. Those include decays into bottom quarks with full bottom-quark mass…

高能物理 - 唯象学 · 物理学 2021-11-01 YaLu Hu , ChuanLe Sun , Xiao-Min Shen , Jun Gao

We present a case study for the doubly charged Higgs bosons $H^{\pm\pm}$ pair production in $e^+e^-$ and $pp$ colliders with their subsequent decays to four charged leptons. We consider the Higgs Triplet Model (HTM) not restricted by the…

高能物理 - 唯象学 · 物理学 2021-09-01 Janusz Gluza , Magdalena Kordiaczynska , Tripurari Srivastava

We present a method, based on the positive weight next-to-leading-order matching formalism (POWHEG), to simulate photon production processes at next-to-leading-order (NLO). This technique is applied to the simulation of diphoton production…

高能物理 - 唯象学 · 物理学 2015-05-28 Luca D'Errico , Peter Richardson

We analyze the flavor changing decay $h\rightarrow \mu \tau $ in the framework of a Two Higgs Doublet Model with a fourth generation of fermions (4G2HDM) which couples only to the heavy scalar doublet. We obtain that the respective…

高能物理 - 唯象学 · 物理学 2018-04-03 S. Chamorro-Solano , A. Moyotl , M. A. Pérez

In this article we describe simulations of the hadronic decay of Higgs bosons produced in association with vector bosons at linear and hadronic colliders. We use the Monte Carlo at next-to-leading-order MC@NLO matching prescription with the…

高能物理 - 唯象学 · 物理学 2011-01-27 Oluseyi Latunde-Dada

We present the precision predictions on the pair production of light, $CP$-even Higgs in weak vector boson fusion (VBF) up to the QCD next-to-next-to-leading-order (NNLO) at hadron colliders within the $CP$-conserving type-II…

高能物理 - 唯象学 · 物理学 2015-02-11 Li Wei-Hua , Zhang Ren-You , Ma Wen-Gan , Guo Lei , Ling Liu-Sheng , Li Xiao-Zhou

Triple gauge boson hadroproduction, in particular the production of three $W$-bosons at the LHC, is considered at next-to leading order accuracy in QCD. The NLO matrix elements are combined with parton showers. Multijet merging is invoked…

高能物理 - 唯象学 · 物理学 2014-06-11 S. Hoeche , F. Krauss , S. Pozzorini , M. Schoenherr , J. M. Thompson , K. C. Zapp

The leptonic decays of the heavy gauge bosons W and/or Z provide a clear experimental signature at hadron colliders. The production of accompanying jets is an excellent signal to probe QCD, while also being the main background to many…

高能物理 - 唯象学 · 物理学 2015-03-18 Flavia A. Dias , Emily Nurse , Gavin Hesketh

Within the left-right symmetric model (LRM) the decays $$S_1\to\mu^++\tau^-,\qquad S_1\to\mu^-+\tau^+$$ where $S_1$ is an analog of the standard model Higgs boson, are considered. The widths of this decays are found in the third order of…

高能物理 - 唯象学 · 物理学 2019-02-13 O. M. Boyarkin , G. G. Boyarkina , D. S. Vasileuskaya

The possibility is discussed to observe the sparticle decay modes of the heavy MSSM Higgs bosons at the Large Hadron Collider. We focus on the heavy neutral Higgses, and argue that their decay into neutralinos may access an interesting…

高能物理 - 唯象学 · 物理学 2007-05-23 Filip Moortgat

We have extended staggered chiral perturbation theory to O(a^2 p^2), O(a^4), and O(a^2 m), the orders necessary for a full next-to-leading order calculation of pseudo-Goldstone boson masses and decay constants including taste-symmetry…

高能物理 - 格点 · 物理学 2010-11-19 Stephen R. Sharpe , Ruth S. Van de Water

Theoretical predictions for the decay width of Standard Model Higgs boson into bottom quarks and tau-leptons, in the case when M_H< 2M_W, are briefly reviewed. The effects of higher order perturbative QCD (up to alpha_s^4-level) and QED…

高能物理 - 唯象学 · 物理学 2010-04-22 Victor T. Kim

We present a detailed phenomenological study of Z-boson production in association with a jet through next-to-next-to-leading order (NNLO) in perturbative QCD. Fiducial cross sections and differential distributions for both 8 TeV and 13 TeV…

高能物理 - 唯象学 · 物理学 2016-10-17 Radja Boughezal , Xiaohui Liu , Frank Petriello