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相关论文: Probing composite Higgs boson substructure at the …

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Although the Higgs boson has been discovered, its self-couplings are poorly constrained. This leaves the nature of the Higgs boson undetermined. Motivated by different Higgs potential scenarios other than the Landau-Ginzburg type in the…

高能物理 - 唯象学 · 物理学 2020-04-22 Pankaj Agrawal , Debashis Saha , Ling-Xiao Xu , Jiang-Hao Yu , C. -P. Yuan

We examine the detection of the intermediate-mass Higgs boson (IMH) at LHC through the associate production channel pp-->t+(anti-t)+H+X-->l+photon+ photon+X'. It is shown that by applying kinematic cuts or b-tagging on the final state jets,…

高能物理 - 唯象学 · 物理学 2009-10-28 Hong-Yi Zhou , Yu-Ping Kuang

We assess the current state of searches at the LHC for additional Higgs bosons in light of both direct limits and indirect bounds coming from coupling measurements of the Standard Model-like Higgs boson. Given current constraints, we…

高能物理 - 唯象学 · 物理学 2015-04-21 Nathaniel Craig , Francesco D'Eramo , Patrick Draper , Scott Thomas , Hao Zhang

We investigate the expectations for the light Higgs signal in the MSSM in different search channels at the LHC. After taking into account dark matter and flavor constraints in the MSSM with eleven free parameters, we show that the light…

高能物理 - 唯象学 · 物理学 2015-06-03 D. Albornoz Vasquez , G. Belanger , R. M. Godbole , A. Pukhov

It is widely believed that searching for a light Higgs boson (with a mass around 120 GeV) in the WH and ZH channels, where H decays into $b\bar{b}$, will be very challenging at the LHC. These proceedings describe how this channel can be…

高能物理 - 唯象学 · 物理学 2009-06-26 Mathieu Rubin

It is likely that the LHC will observe a color- and charge-neutral scalar whose decays are consistent with those of the Standard Model (SM) Higgs boson. The Higgs interpretation of such a discovery is not the only possibility. For example,…

高能物理 - 唯象学 · 物理学 2008-11-26 Walter D. Goldberger , Benjamin Grinstein , Witold Skiba

We present a qualitatively new approach to discover Higgs bosons of the MSSM at the LHC using jet substructure techniques applied to boosted Higgs decays. These techniques are ideally suited to the MSSM, since the lightest Higgs boson…

高能物理 - 唯象学 · 物理学 2010-12-23 Graham D. Kribs , Adam Martin , Tuhin S. Roy , Michael Spannowsky

We revisit the construction of the composite Higgs models in a context of the bottom-up holographic approach. The soft wall framework is under consideration imposing the translation of the $4D$ global symmetry breaking characteristic to the…

高能物理 - 唯象学 · 物理学 2018-12-05 Domenec Espriu , Alisa Katanaeva

We study the discovery prospects of a heavy neutral scalar arising from a $U(1)_{B-L}$ extension of the Standard Model (SM) during the Large Hadron Collider's high luminosity runs (HL-LHC). This heavy neutral scalar mixes with the SM Higgs…

高能物理 - 唯象学 · 物理学 2015-09-16 Shankha Banerjee , Manimala Mitra , Michael Spannowsky

Despite the discovery of a Higgs boson h(125GeV) at the LHC Run-1, its self-interaction has fully evaded direct experimental probe so far. Such self-interaction is vital for electroweak symmetry breaking, vacuum stability and electroweak…

高能物理 - 唯象学 · 物理学 2016-01-08 Hong-Jian He , Jing Ren , Weiming Yao

We study the sensitivity of the process $\mu^-\mu^+\to HH$ to the $q^2$-dependence of the $HHH$ form factor, which can reflect the Higgs boson structure, especially in the case of compositeness. We compute the Born and 1 loop SM…

高能物理 - 唯象学 · 物理学 2016-06-22 G. J. Gounaris , F. M. Renard

We analyze some signatures of neutral Higgs bosons, produced in high energy proton (anti)proton collisions, which decay primarily to top quarks. This channel is clouded by a large irreducible $t\bar t$ background. We investigate the $t\bar…

高能物理 - 唯象学 · 物理学 2009-10-30 W. Bernreuther , M. Flesch , P. Haberl

Most of the current experimental searches for charged Higgs bosons at the Large Hadron Collider (LHC) concentrate upon the $tb$ and $\tau\nu$ decay channels. In the present study, we analyze instead the feasibility of the bosonic decay…

高能物理 - 唯象学 · 物理学 2023-05-18 Z. Li , A. Arhrib , R. Benbrik , M. Krab , B. Manaut , S. Moretti , Y. Wang , Q. S. Yan

Recently, the ATLAS and CMS experiments have reported the discovery of a Higgs like resonance at the LHC. The next analysis step will include the determination of its spin and CP quantum numbers or the form of its interaction Lagrangian…

高能物理 - 唯象学 · 物理学 2015-06-12 C. Englert , D. Goncalves , K. Mawatari , T. Plehn

We explore the collider relevance of a charge-radius coupling among light mesons in composite Higgs models. In particular, we focus of a coupling of the photon to the composite Higgs and a composite singlet, arising from isospin violation…

高能物理 - 唯象学 · 物理学 2022-12-14 G. Cacciapaglia , S. Gascon-Shotkin , A. Lesauvage , N. Manglani , K. Sridhar

Anomalously light fermionic partners of the top quark often appear in explicit constructions, such as the 5d holographic models, where the Higgs is a light composite pseudo Nambu-Goldstone boson and its potential is generated radiatively by…

高能物理 - 唯象学 · 物理学 2015-06-04 Oleksii Matsedonskyi , Giuliano Panico , Andrea Wulzer

After the discovery of the Higgs boson with mass at approximately 125 $GeV$ at the LHC, many studies both from the theoretical and experimental sides have been performed to search for a new Higgs Boson lighter than the 125 $GeV$ Higgs…

We provide a unified description, both at the effective and fundamental Lagrangian level, of models of composite Higgs dynamics where the Higgs itself can emerge, depending on the way the electroweak symmetry is embedded, either as a…

高能物理 - 唯象学 · 物理学 2016-02-25 G. Cacciapaglia , F. Sannino

We continue our investigation of gauge theories in which the Higgs boson arises as a pseudo-Nambu-Goldstone boson (pNGB) and top-partners arise as bound states of three hyperfermions. All models have additional pNGBs in their spectrum that…

高能物理 - 唯象学 · 物理学 2016-07-20 Gabriele Ferretti

This paper extends an earlier one describing the Higgs boson $H$ as a light composite scalar in a strong extended technicolor model of electroweak symmetry breaking. The Higgs mass $M_H$ is made much smaller than $\Lambda_{ETC}$ by tuning…

高能物理 - 唯象学 · 物理学 2017-07-04 Kenneth Lane , Lukas Pritchett