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相关论文: $hhjj$ production at the LHC

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The strategies recently developed to study Higgs boson properties at the LHC are reviewed. It is shown how to obtain model-independent determinations of couplings to fermions and gauge bosons by exploiting different production and decay…

高能物理 - 唯象学 · 物理学 2009-11-07 F. Piccinini , A. D. Polosa

The prospects of observing the non-resonant di-Higgs production in the Standard Model at the proposed high energy upgrade of the LHC, $viz.$ the HE-LHC$~$($\sqrt{s}=27~{\rm TeV}$ and $\mathcal{L} = 15~{\rm ab^{-1}}$) is studied. Various…

高能物理 - 唯象学 · 物理学 2021-01-19 Amit Adhikary , Rahool Kumar Barman , Biplob Bhattacherjee

A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a…

高能物理 - 实验 · 物理学 2021-04-12 CMS Collaboration

The measurement of the trilinear and quartic Higgs self-couplings is necessary for the reconstruction of the Higgs potential. This way the Higgs mechanism as the origin of electroweak symmetry breaking can be tested. The couplings are…

高能物理 - 唯象学 · 物理学 2015-03-17 Ramona Grober , Margarete Muhlleitner

In this paper, we examine the potential of Higgs boson production associated with a photon at the LHC to probe the new physics effects in the framework of the standard model effective field theory. It is shown that the differential…

高能物理 - 唯象学 · 物理学 2017-09-21 Hamzeh Khanpour , Sara Khatibi , Mojtaba Mohammadi Najafabadi

The discovery of the Higgs boson has led to new possible signatures for heavy resonance searches at the LHC. Since then, search channels including at least one Higgs boson plus another particle have formed an important part of the program…

高能物理 - 实验 · 物理学 2025-04-10 CMS Collaboration

Higgs pair production is not only sensitive to the trilinear Higgs self-coupling, but it can give access to other anomolous couplings, as e.g. a novel $hht\bar{t}$ coupling. In Composite Higgs Models, this coupling usually leads to a large…

高能物理 - 唯象学 · 物理学 2018-02-14 Ramona Gröber

The measurement of the Higgs quartic coupling modifier between a Higgs boson pair and a vector boson pair, $\kappa _{2V}$, is expected to be achieved from vector-boson fusion (VBF) production of a Higgs boson pair. However, this process…

高能物理 - 唯象学 · 物理学 2021-06-09 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song

A study of the anomalous couplings of the Higgs boson to vector bosons, including $CP$-violation effects, has been conducted using its production and decay in the WW channel. This analysis is performed on proton-proton collision data…

高能物理 - 实验 · 物理学 2024-08-20 CMS Collaboration

Higgs boson self-interactions can be investigated via di-Higgs ($pp\to hh+X$) production at the LHC. With a small ${\cal{O}}(30)$ fb Standard Model production cross section, and a large $t\bar t$ background, this measurement has been…

高能物理 - 唯象学 · 物理学 2015-06-17 Alan J. Barr , Matthew J. Dolan , Christoph Englert , Michael Spannowsky

A search for the Standard Model Higgs boson has been performed in the H->WW->lnujj channel using 4.7 fb^-1 of pp collision data recorded at a centre-of-mass energy of sqrt(s) = 7 TeV with the ATLAS detector at the Large Hadron Collider.…

高能物理 - 实验 · 物理学 2013-06-11 ATLAS Collaboration

Azimuthal angle correlations of the jets in Hjj events at the LHC provide a probe of the CP nature of Higgs couplings to gauge bosons. In weak boson fusion the HWW and HZZ couplings are tested. Gluon fusion processes probe the tensor…

高能物理 - 唯象学 · 物理学 2007-05-23 V. Hankele , G. Klamke , D. Zeppenfeld

A feasibility study for an experimental analysis searching for $t\bar{t}H(H\rightarrow b\bar{b})$ production at the LHC and its high luminosity phase is presented in this note. Unlike search strategies currently being used in experimental…

高能物理 - 唯象学 · 物理学 2018-12-31 A. J. Costa , A. L. Carvalho , R. Gonçalo , P. Muiño , A. Onofre

Real emission corrections to Higgs production via gluon fusion, at order alpha_s^4, lead to a Higgs plus two-jet final state. We present the calculation of these scattering amplitudes, as induced by top-quark triangle-, box- and…

高能物理 - 唯象学 · 物理学 2011-05-05 V. Del Duca , W. Kilgore , C. Oleari , C. Schmidt , D. Zeppenfeld

We discuss a novel signature of dark matter production at the LHC resulting from the emission of an additional Higgs boson in the dark sector. The presence of such a dark Higgs boson is motivated simultaneously by the need to generate the…

The data taken in Run II at the LHC have started to probe Higgs boson production at high transverse momentum. Future data will provide a large sample of events with boosted Higgs boson topologies, allowing for a detailed understanding of…

We consider the hadronic radiation patterns for the generic process of bb + 2 forward jet production at the LHC, where the (centrally produced) bb originate either from a Higgs, a Z or from standard QCD production processes. A numerical…

高能物理 - 唯象学 · 物理学 2009-11-10 V. A. Khoze , W. J. Stirling , P. H. Williams

We report on a search for the production of the Higgs boson decaying to two bottom quarks accompanied by two additional quarks. The data sample used corresponds to an integrated luminosity of approximately 4\,\invfb\, of \ppbar\, collisions…

高能物理 - 实验 · 物理学 2015-03-18 CDF Collaboration

We consider Higgs boson pair production at the LHC in the $b \bar{b} W^+ W^-$ channel, with subsequent decay of the $W^+W^-$ pair into $\ell \nu j j$. Employing jet substructure and event reconstruction techniques, we show that strong…

高能物理 - 唯象学 · 物理学 2013-05-30 Andreas Papaefstathiou , Li Lin Yang , José Zurita

A critical element of the LHC physics program is the search for an additional source of CP violation. This is largely unexplored in the context of non-linear Higgs physics, which is naturally described in Higgs Effective Field Theory…

高能物理 - 唯象学 · 物理学 2024-07-23 Akanksha Bhardwaj , Christoph Englert , Dorival Gonçalves , Alberto Navarro