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相关论文: Constraining CP-violating Higgs Sectors at the LHC…

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The Higgs-gluon interaction is crucial for LHC phenomenology. To improve the constraints on the CP structure of this coupling, we investigate Higgs production with two jets using machine learning. In particular, we exploit the CP…

高能物理 - 唯象学 · 物理学 2025-03-31 Henning Bahl , Elina Fuchs , Marc Hannig , Marco Menen

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

Discovering CP-violating effects in the Higgs sector would constitute an indisputable sign of physics beyond the Standard Model. We derive constraints on the CP-violating Higgs-boson couplings to top and bottom quarks as well as to tau…

高能物理 - 唯象学 · 物理学 2013-11-28 Joachim Brod , Ulrich Haisch , Jure Zupan

A search for CP violation in the decay kinematics and vector-boson production of the Higgs boson is performed in the $H \to ZZ^{*} \to 4\ell$ ($\ell = e,\mu$) decay channel. The results are based on proton-proton collision data produced at…

高能物理 - 实验 · 物理学 2024-05-29 ATLAS Collaboration

The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two $\tau$-leptons using 140 fb$^{-1}$ of proton-proton collision data at…

高能物理 - 实验 · 物理学 2025-12-12 ATLAS Collaboration

Production of two Higgs bosons is studied in a CP violating supersymmetric scenario at the Large Hadron Collider with $E_{cm}=14$ TeV. There exists a region where a very light Higgs $\lesssim 50$ GeV could not be probed by LEP experiment.…

高能物理 - 唯象学 · 物理学 2013-08-29 Priyotosh Bandyopadhyay , Katri Huitu

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

We investigate the observability of the lightest Higgs boson in the gluon-fusion channel at the CERN Large Hadron Collider (LHC) in the minimal supersymmetric Standard Model with explicit CP-violating mixing among three neutral Higgs…

高能物理 - 唯象学 · 物理学 2009-11-07 S. Y. Choi , Kaoru Hagiwara , Jae Sik Lee

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

The possibility to observe a Higgs boson having a mass between 300 and 600 GeV and to measure its couplings to vector bosons and top quark with CMS at the LHC is studied. Six different signatures are analyzed. The possibility to separate…

高能物理 - 实验 · 物理学 2009-09-25 A. -S. Nicollerat

We study Higgs + jet production at hadron colliders in order to look for new physics residual effects possibly described by the $dim=6$ operators ${\O}_{GG}$ and ${\widetilde\O}_{GG}$ which induce anomalous $Hgg$ and $Hggg$ couplings. Two…

高能物理 - 唯象学 · 物理学 2008-11-26 G. J. Gounaris , J. Layssac , F. M. Renard

We study the prospects of measuring the CP property of the Higgs ($h$) coupling to tau leptons using the vector boson fusion (VBF) production mode at the high-luminosity LHC. Utilizing the previously proposed angle between the planes…

高能物理 - 唯象学 · 物理学 2017-05-26 Tao Han , Satyanarayan Mukhopadhyay , Biswarup Mukhopadhyaya , Yongcheng Wu

We calculate the production cross section of the ``CP-odd'' Higgs boson via gluon fusion in the minimal supersymmetric standard model with explicit CP violation in the stop sector. We show that there is a parameter region in which the cross…

高能物理 - 唯象学 · 物理学 2008-11-26 Qing-Hong Cao , Daisuke Nomura , Kazuhiro Tobe , C. -P. Yuan

This article presents the results of two studies of Higgs boson properties using the $WW^*(\rightarrow e\nu\mu\nu)jj$ final state, based on a dataset corresponding to 36.1/fb of $\sqrt{s}$=13 TeV proton$-$proton collisions recorded by the…

高能物理 - 实验 · 物理学 2022-07-28 ATLAS 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…

We analyze the prospect for observing the intermediate neutral Higgs boson ($h_2$) in its decay to two lighter Higgs bosons ($h_1$) at the presently operating hadron colliders in the framework of the CP violating MSSM using the PYTHIA event…

高能物理 - 唯象学 · 物理学 2011-02-18 Siba Prasad Das , Manuel Drees

Using the full set of the LHC Higgs data from the runs at 7 and 8 TeV center of mass energies that have been released by the ATLAS and CMS collaborations, we determine the couplings of the Higgs particle to fermions and gauge bosons as well…

高能物理 - 唯象学 · 物理学 2015-06-15 Abdelhak Djouadi , Grégory Moreau

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

A search for a heavy, CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a 125 GeV Higgs boson, $h$, with the ATLAS detector at the LHC is presented. The search uses proton--proton collision data at a centre-of-mass energy of 8 TeV…

高能物理 - 实验 · 物理学 2015-04-24 ATLAS Collaboration

In high energy hadronic collisions, a general CP-violating Higgs boson $\Phi$ with accompanying jets can be efficiently produced via gluon fusion, which is mediated by heavy quark loops. In this letter we study the dominant sub-channel $ gg…

高能物理 - 唯象学 · 物理学 2015-06-18 Francisco Campanario , Michael Kubocz
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