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相关论文: Anomalous Higgs-boson coupling effects in HWW prod…

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The LHC sensitivity to an anomalous Higgs coupling to the top quark in the Higgs-top associated production is analyzed. Thanks to the strong destructive interference in the t-channel for standard model couplings, this process can be very…

高能物理 - 唯象学 · 物理学 2013-09-25 Sanjoy Biswas , Emidio Gabrielli , Barbara Mele

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

We study the sensitivities of non-standard top and Higgs couplings in the $pp\to thj$ process at the 14 TeV high-luminosity run of Large Hadron Collider (HL-LHC). We calculate top polarization and construct various lab-frame observables to…

高能物理 - 唯象学 · 物理学 2015-12-24 Saurabh D. Rindani , Pankaj Sharma , Ambresh Shivaji

We consider the production of a single top quark in association with a Higgs boson at the LHC. In particular, we compute the cross sections for the processes $ p p \to t h j$, $t h b$, $t h W$, $t h j j$, $t h j b$, $t h W j$, $t h W b$ in…

高能物理 - 唯象学 · 物理学 2013-12-20 Pankaj Agrawal , Subhadip Mitra , Ambresh Shivaji

The production of the Higgs boson in association with a single top quark is sensitive to the relative sign of the coupling parameters describing its interaction with fermions and gauge bosons. The tHq production mode therefore provides an…

高能物理 - 实验 · 物理学 2019-08-13 Benedikt Maier

In this manuscript, we study the LHC signatures of a non-standard heavy neutral Higgs boson H at the 14 TeV LHC model-independently by taking the anomalous HVV coupling constants in the possible range obtained in our previous paper,…

高能物理 - 唯象学 · 物理学 2014-11-24 Ling-Hao Xia , Hong-Yu Ren , Yu-Ping Kuang

The associated production of Higgs and $W$ bosons via vector-boson fusion (VBF) is highly sensitive to the relative sign of the Higgs boson couplings to $W$ and $Z$ bosons. In this Letter, two searches for this process are presented, using…

高能物理 - 实验 · 物理学 2024-10-07 ATLAS Collaboration

We study the prospects of probing the anomalous $tHq$~($q= u, c$) couplings via SS2L or 3L signatures at the High Luminosity (HL-LHC) run of the 14 TeV CERN collider. We focus on signals of the $tH$ associated production followed by the…

高能物理 - 唯象学 · 物理学 2019-01-30 Yao-Bei Liu , Stefano Moretti

We combine the NNLO QCD description of Higgs boson production in association with an electroweak vector boson $V = W~{\rm or}~Z$ with a similarly-precise description of Higgs boson decays into a pair of massive $b$ quarks and with the…

高能物理 - 唯象学 · 物理学 2022-02-09 Wojciech Bizoń , Fabrizio Caola , Kirill Melnikov , Raoul Röntsch

We study the sensitivity of the Large Hadron Collider (LHC) to anomalous tbW couplings in single-top production in association with a W^- boson followed by semileptonic decay of the top. We calculate top polarization and the effects of…

高能物理 - 唯象学 · 物理学 2015-05-28 Saurabh D. Rindani , Pankaj Sharma

Associated production of the Higgs boson with a single top quark proceeds through Feynman diagrams, which are either proportional to the hWW, top-Yukawa, or the bottom-Yukawa couplings. It was shown in literature that the interference…

高能物理 - 唯象学 · 物理学 2015-06-19 Jung Chang , Kingman Cheung , Jae Sik Lee , Chih-Ting Lu

The LHC experiments have analyzed the 7 and 8 TeV LHC data in the main Higgs production and decay modes. Current analyses only loosely constrain an anomalous top-Higgs coupling in a direct way. In order to strongly constrain this coupling,…

高能物理 - 唯象学 · 物理学 2013-09-27 Sanjoy Biswas , Emidio Gabrielli , Fabrizio Margaroli , Barbara Mele

We study the phenomenology of associated production of a vector boson with a pair of Higgs bosons ($VHH$) at the High-Luminosity LHC. Despite the low rate of this channel, the scaling of the cross section suggests a measurement could be a…

高能物理 - 唯象学 · 物理学 2018-07-05 Karl Nordström , Andreas Papaefstathiou

Current Higgs data show an ambiguity in the value of the Yukawa couplings to quarks and leptons. Not so much because of still large uncertainties in the measurements but as the result of several almost degenerate minima in the coupling…

高能物理 - 唯象学 · 物理学 2015-06-12 Marco Farina , Christophe Grojean , Fabio Maltoni , Ennio Salvioni , Andrea Thamm

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

We investigate the possibility of probing an anomalous CP-violating coupling in the HWW vertex at the LHC. We consider the production of the Higgs in association of a W and then decay via the $H \rightarrow WW$ channel taking into account…

高能物理 - 唯象学 · 物理学 2011-06-24 Nishita Desai , Dilip Kumar Ghosh , Biswarup Mukhopadhyaya

If the electroweak symmetry breaking is originated from a strongly coupled sector, as for instance in composite Higgs models, the Higgs boson couplings can deviate from their Standard Model values. In such cases, at sufficiently high…

高能物理 - 唯象学 · 物理学 2015-06-12 A. Belyaev , A. C. A. Oliveira , R. Rosenfeld , M. C. Thomas

We study the angular correlation and the amount of top quark polarization in the production of a higgs boson in association with a single top quark in the $t-$channel at the LHC. We also study the effect of anomalous $Wtb$ couplings on the…

高能物理 - 唯象学 · 物理学 2014-10-31 S. F. Taghavi , M. Mohammadi Najafabadi

We propose a sensitive way to test the anomalous HVV couplings (V=W^\pm, 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 2007-05-23 H. -J. He , Y. -P. Kuang , C. -P. Yuan , B. Zhang

We complement the analysis of the anomalous top-Higgs coupling effects on the secondary lepton distributions in the associated production of the top-quark pair and Higgs boson in proton-proton collisions at the LHC of the former work by one…

高能物理 - 唯象学 · 物理学 2015-09-07 Karol Kolodziej , Aleksandra Slapik
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