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We present an extension of the JHUGen and MELA framework, which includes an event generator and library for the matrix element analysis. It enables simulation, optimal discrimination, reweighting techniques, and analysis of a bosonic…

高能物理 - 唯象学 · 物理学 2021-01-29 Andrei V. Gritsan , Jeffrey Roskes , Ulascan Sarica , Markus Schulze , Meng Xiao , Yaofu Zhou

A study of anomalous couplings of the Higgs boson to vector bosons and fermions is presented. The data were recorded by the CMS experiment at a center-of-mass energy of pp collisions at the LHC of 13 TeV and correspond to an integrated…

高能物理 - 实验 · 物理学 2023-08-21 CMS Collaboration

Possible anomalous couplings of the Higgs boson to vector bosons and fermions are studied using Higgs boson candidates decaying to a pair of photons. The study is based on proton-proton collision data at $\sqrt{s}$ = 13 TeV collected by the…

高能物理 - 实验 · 物理学 2026-05-15 CMS Collaboration

The $HZ\gamma $ coupling, which is highly sensitive to the new physics beyond the standard model, is studied through the process $pp\rightarrow p\gamma p\rightarrow pHX$ at the LHC. To this purpose, an effective Lagrangian, in a model…

高能物理 - 唯象学 · 物理学 2016-10-11 S. Taheri Monfared , Sh. Fayazbakhsh , M. Mohammadi Najafabadi

Associated production of the Higgs boson with a top-antitop pair is a key channel to gather further information on the nature of the newly discovered boson at the LHC. Experimentally, however, its observation is very challenging due to the…

高能物理 - 唯象学 · 物理学 2015-06-15 Pierre Artoisenet , Priscila de Aquino , Fabio Maltoni , Olivier Mattelaer

We first formulate, in the framework of effective Lagrangian, the general form of the effective interactions of the lightest Higgs boson h and a heavier neutral Higgs boson H in a multi-Higgs system taking account of Higgs mixing effect. We…

高能物理 - 唯象学 · 物理学 2016-02-15 Yu-Ping Kuang , Hong-Yu Ren , Ling-Hao Xia

A search is performed for anomalous interactions of the recently discovered Higgs boson using matrix element techniques with the information from its decay to four leptons and from associated Higgs boson production with two quark jets in…

高能物理 - 实验 · 物理学 2017-11-09 CMS Collaboration

A study is presented of anomalous HVV interactions of the Higgs boson, including its $CP$ properties. The study uses Higgs boson candidates produced mainly in vector boson fusion and gluon fusion that subsequently decay to a pair of $\tau$…

高能物理 - 实验 · 物理学 2019-12-11 CMS Collaboration

In this paper, we study the extent to which CP parity of a Higgs boson, and more generally its anomalous couplings to gauge bosons, can be measured at the LHC and a future electron-positron collider. We consider several processes, including…

Studies of $CP$ violation and anomalous couplings of the Higgs boson to vector bosons and fermions are presented. The data were acquired by the CMS experiment at the LHC and correspond to an integrated luminosity of 137 fb$^{-1}$ at a…

高能物理 - 实验 · 物理学 2021-09-22 CMS Collaboration

The study of the anomalous non-resonant $HH$ production is presented from the point of view of effective field theory (EFT) parameterization. The searches for $pp \rightarrow HH \rightarrow \gamma \gamma WW$, $pp \rightarrow HH \rightarrow…

高能物理 - 唯象学 · 物理学 2020-01-08 Petr Mandrik

Probing signatures of anomalous interactions of the Higgs boson with pairs of weak vector bosons is an important goal of an $e^+e^-$ collider commissioned as a Higgs factory. We perform a detailed analysis of such potential of a collider…

We present a study of Higgs boson production in vector boson fusion and in association with a vector boson and its decay to two vector bosons, with a focus on the treatment of virtual loops and virtual photons. Our analysis is performed…

高能物理 - 唯象学 · 物理学 2022-08-22 Jeffrey Davis , Andrei V. Gritsan , Lucas S. Mandacaru Guerra , Savvas Kyriacou , Jeffrey Roskes , Markus Schulze

We derive bounds on Higgs and gauge--boson anomalous interactions using the CDF data for the process $p \bar{p} \to \gamma\gamma\gamma + X$. We use a linearly realized $SU_L(2) \times U_Y(1)$ invariant effective Lagrangian to describe the…

高能物理 - 唯象学 · 物理学 2009-10-31 F. de Campos , M. C. Gonzalez-Garcia , S. M. Lietti , S. F. Novaes , R. Rosenfeld

We propose a sensitive way to test the anomalous HVV couplings (V=W(+/-),Z(0)) of the Higgs boson (H), which can arise from either the dimension-3 effective operator in a nonlinearly realized Higgs sector or the dimension-6 effective…

高能物理 - 唯象学 · 物理学 2008-11-26 Bin Zhang , Yu-Ping Kuang , Hong-Jian He , C. -P. Yuan

In this document we study the effect of anomalous Higgs boson couplings on non-resonant pair production of Higgs bosons ($HH$) at the LHC. We explore the space of the five parameters $\kappa_{\lambda}$, $\kappa_{t}$, $c_2$, $c_g$, and…

We analyze the potential of the CERN Large Hadron Collider (LHC) to study anomalous quartic vector-boson interactions Z Z gamma gamma, Z Z Z gamma, W+ W- gamma gamma, and W+ W- Z gamma through the weak boson fusion processes q q -> q q…

高能物理 - 唯象学 · 物理学 2008-11-26 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M. Lietti

Deviations from SM expectations in the Higgs sector can be parameterized by an effective Lagrangian. The corresponding anomalous couplings have been implemented in a Monte Carlo program for Higgs production in vector boson fusion, at NLO…

高能物理 - 唯象学 · 物理学 2008-11-26 T. Figy , V. Hankele , G. Klamke , D. Zeppenfeld

Higgs boson production in association with a photon ($H$+$\gamma$) offers a promising channel to test the Higgs boson to photon coupling at various energy scales. Its potential sensitivity to anomalous couplings of the Higgs boson has not…

高能物理 - 唯象学 · 物理学 2019-03-19 Liaoshan Shi , Zhijun Liang , Bo Liu , Zhenhui He

The discovery of Higgs boson plays a crucial role in understanding the electroweak symmetry breaking sector. From now on, solving the dynamics of this sector needs precision measurements of the couplings of the Higgs boson to the standard…

高能物理 - 唯象学 · 物理学 2013-05-17 A. Senol
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