中文
相关论文

相关论文: Mass Effects in the Higgs-Gluon Coupling: Boosted …

200 篇论文

Higgs boson pair production is considered at next-to-leading order with special emphasis on the effect of a finite top quark mass. It is shown that, unlike for single-Higgs boson production, power-suppressed corrections are numerically…

高能物理 - 唯象学 · 物理学 2013-12-02 Jonathan Grigo , Jens Hoff , Kirill Melnikov , Matthias Steinhauser

Supersymmetric QCD corrections to the gluonic production and decay rate of a CP-even Higgs boson are evaluated at next-to-leading order. To this aim, we derive an effective Lagrangian for the gluon-Higgs coupling. We show that a consistent…

高能物理 - 唯象学 · 物理学 2010-04-22 Robert V. Harlander , Matthias Steinhauser

We first build a minimal model of vector-like quarks where the dominant Higgs boson production process at LHC -- the gluon fusion -- can be significantly suppressed, being motivated by the recent stringent constraints from the search for…

高能物理 - 唯象学 · 物理学 2013-05-30 A. Azatov , O. Bondu , A. Falkowski , M. Felcini , S. Gascon-Shotkin , D. K. Ghosh , G. Moreau , A. Y. Rodriguez-Marrero , S. Sekmen

Indirect constraints on the total Higgs width $\Gamma_h$ from correlating Higgs signal strengths with cross section measurements in the off-shell region for $p(g)p(g)\to 4\ell$ production have received considerable attention recently, and…

高能物理 - 唯象学 · 物理学 2014-09-10 Christoph Englert , Michael Spannowsky

A search is presented for the Higgs boson off-shell production in gluon fusion and vector boson fusion processes with the Higgs boson decaying into a W+W- pair and the W bosons decaying leptonically. The data observed in this analysis are…

高能物理 - 实验 · 物理学 2016-09-20 CMS Collaboration

This note is to record an unsucessful idea. I tried hard to persuade myself to write this note as I have spent a significant fraction of time during this summer. For Higgs resonant production and decaying in the $s$ channel, $i \to H \to…

高能物理 - 唯象学 · 物理学 2021-08-24 Li-Gang Xia

In high energy hadronic collisions a scalar or pseudoscalar Higgs boson, Phi=H,A, can be efficiently produced via gluon fusion, which is mediated by heavy quark loops. We here consider double real emission corrections to Phi=A production,…

高能物理 - 唯象学 · 物理学 2015-05-20 Francisco Campanario , Michael Kubocz , Dieter Zeppenfeld

We study the possibility to separate in gluon fusion loop-induced Higgs boson production from point-like production. The Higgs boson is reconstructed in the Hgg final state at very large transverse momentum. Using the Higgs boson yields…

高能物理 - 唯象学 · 物理学 2015-07-27 Urs Langenegger , Michael Spira , Ivo Strebel

Characterizing the 125 GeV Higgs is a critical component of the physics program at the LHC Run II. In this Letter, we consider $t\bar{t}H$ associated production in the dileptonic mode. We demonstrate that the difference in azimuthal angle…

高能物理 - 唯象学 · 物理学 2016-03-09 Matthew R. Buckley , Dorival Goncalves

In these proceedings, we present results for Higgs production at the LHC via gluon fusion with triple real emission corrections and the validity range of the heavy-top effective theory approximation for this process. For a general…

高能物理 - 唯象学 · 物理学 2014-10-15 Francisco Campanario , Michael Kubocz

Based on Run I data we present a comprehensive analysis of Higgs couplings. For the first time this SFitter analysis includes independent tests of the Higgs-gluon and top Yukawa couplings, Higgs decays to invisible particles, and off-shell…

高能物理 - 唯象学 · 物理学 2015-05-27 Tyler Corbett , Oscar J. P. Eboli , Dorival Goncalves , J. Gonzalez-Fraile , Tilman Plehn , Michael Rauch

The one-loop Higgs coupling to two gluons has been invoked in the past to estimate that the fraction of the nucleon mass which is due to the Higgs is rather small but calculable (approximately 8 percent). To test the veracity of this…

高能物理 - 唯象学 · 物理学 2011-10-26 Y. N. Srivastava , A. Widom , J. Swain

We discuss effects related to the fact that the final state particles of a reaction e+ e- -> t \bar{t} H are actually produced and they decay off mass shell. For the intermediate mass Higgs boson, which decays preferably into a…

高能物理 - 唯象学 · 物理学 2008-11-26 Karol Kolodziej , Szymon Szczypinski

The production of a Higgs boson in association with at least two jets receives contributions both from the fusion of weak vector bosons (VBF) and from QCD processes, especially gluon fusion (GF). The former process is important for…

高能物理 - 唯象学 · 物理学 2019-04-26 Jeppe R. Andersen , James D. Cockburn , Marian Heil , Andreas Maier , Jennifer M. Smillie

The Higgs boson is produced at the LHC through gluon fusion at roughly the Standard Model rate. New colored fermions, which can contribute to $gg\rightarrow h$, must have vector-like interactions in order not to be in conflict with the…

高能物理 - 唯象学 · 物理学 2014-11-06 Chien-Yi Chen , S. Dawson , I. M. Lewis

The search for di-Higgs production at the LHC in order to set limits on Higgs trilinear coupling and constraints on new physics is one of the main motivations for the LHC high luminosity phase. Recent experimental analyses suggest that such…

高能物理 - 唯象学 · 物理学 2015-09-01 Matthew J. Dolan , Christoph Englert , Nicolas Greiner , Karl Nordstrom , Michael Spannowsky

We present a novel approach to the study of di-Higgs production via gluon-gluon fusion at the LHC. The relevant Feynman diagrams involving two Standard Model-like Higgs bosons $hh$ are computed within a simplified model approach that…

高能物理 - 唯象学 · 物理学 2023-06-21 Stefano Moretti , Luca Panizzi , Jörgen Sjölin , Harri Waltari

The results obtained at the LHC for constraining the trilinear Higgs self-coupling of the detected Higgs boson at about 125 GeV, $\lambda_{hhh}$, via the Higgs pair production process have significantly improved during the last years. We…

高能物理 - 唯象学 · 物理学 2025-08-18 S. Heinemeyer , M. Mühlleitner , K. Radchenko , G. Weiglein

We explore double Higgs production via gluon fusion in the $b\bar{b} \gamma \gamma $ channel at the high-luminosity LHC using machine learning tools. We first propose a Bayesian optimization approach to select cuts on kinematic variables,…

高能物理 - 唯象学 · 物理学 2017-10-10 Alexandre Alves , Tathagata Ghosh , Kuver Sinha

Now that the Higgs particle has been observed by the ATLAS and CMS experiments at the LHC, the next endeavour would be to probe its fundamental properties and to measure its couplings to fermions and gauge bosons with the highest possible…

高能物理 - 唯象学 · 物理学 2013-03-27 Abdelhak Djouadi