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The SU(2)-Higgs model, with a single Higgs field in the fundamental representation and a quartic self-interaction, has a Higgs region and a confinement region which are analytically connected in the parameter space of the theory; these…

高能物理 - 格点 · 物理学 2009-07-29 Mark Wurtz , Randy Lewis , T. G. Steele

We analyze the electroweak interactions in the framework of the Higgs effective field theory using the available Higgs and electroweak diboson production results from LHC run 2 as well as the electroweak precision data. Assuming…

高能物理 - 唯象学 · 物理学 2021-12-23 Oscar J. P. Eboli , M. C. Gonzalez-Garcia , Matheus Martines

Recent data on 125 GeV Higgs-like boson at the LHC starts to constrain the electroweak symmetry breaking sector of the SM and its various extensions. If one imposes the local gauge symmetry of the Standard Model (SM) ($SU(3)_c \times…

高能物理 - 唯象学 · 物理学 2015-06-16 Suyong Choi , Sunghoon Jung , P. Ko

In scenarios of strongly coupled electroweak symmetry breaking, heavy composite particles of different spin and parity may arise and cause observable effects on signals that appear at loop levels. The recently observed process of Higgs to…

高能物理 - 唯象学 · 物理学 2015-10-27 A. E. Cárcamo Hernández , Claudio O. Dib , Alfonso R. Zerwekh

In this paper, we investigate how the LHC data limit the Higgs-related couplings in the effective description of a strongly interacting extension of the Standard model. The Higgs boson is introduced as a scalar composite state and it is…

高能物理 - 唯象学 · 物理学 2016-12-12 Mikulas Gintner , Josef Juran

Higgs couplings can be affected by physics beyond the Standard Model. We study modifications through interactions with a hidden sector and in specific composite Higgs models accessible at the LHC. Both scenarios give rise to congruent…

高能物理 - 唯象学 · 物理学 2011-03-28 Sebastian Bock , Remi Lafaye , Tilman Plehn , Michael Rauch , Dirk Zerwas , Peter M. Zerwas

Colored fermionic partners of the top quark are well-known signatures of the Composite Higgs scenario and for this reason they have been and will be subject of an intensive experimental study at the LHC. Performing an assessment of the…

高能物理 - 唯象学 · 物理学 2016-05-04 Oleksii Matsedonskyi , Giuliano Panico , Andrea Wulzer

In light of the discovery of a Higgs-like particle at the LHC, we revisit the status of the precision electroweak data, focusing on two discrepant observables: 1) the long-standing 2.4 sigma deviation in the forward-backward asymmetry of…

高能物理 - 唯象学 · 物理学 2015-06-11 Brian Batell , Stefania Gori , Lian-Tao Wang

The coupling of a composite Higgs to the standard model fields can deviate substantially from the standard model values. In this case perturbative unitarity might break down before the scale of compositeness is reached, which would suggest…

高能物理 - 唯象学 · 物理学 2015-06-05 Brando Bellazzini , Csaba Csáki , Jay Hubisz , Javi Serra , John Terning

We consider the implications of current LHC data on new physics with strongly interacting sector(s). We parametrize the relevant interaction Lagrangian and study the best fit values in light of current data. These are then considered within…

高能物理 - 唯象学 · 物理学 2015-06-15 Tommi Alanne , Stefano Di Chiara , Kimmo Tuominen

I discuss consequences of electroweak symmetry breaking by strong dynamics, assuming the existence of a light composite scalar appearing as a pseudo-Goldstone boson of some global symmetry of the new strongly interacting sector. In such a…

高能物理 - 唯象学 · 物理学 2013-05-24 Anna Kaminska

We investigate the longitudinal $WW$ scattering in models of dynamical electroweak symmetry breaking featuring a spin one axial and vector state and a composite Higgs. We also investigate the effects of a composite spin two state which has…

高能物理 - 唯象学 · 物理学 2010-01-08 Roshan Foadi , Matti Järvinen , Francesco Sannino

Besides the loop contribution and the coupling changing, heavy Higgs decaying to 125GeV Higgs is another important effect in Higgs property measurement in the models that have extend Higgs sector. Such heavy Higgs decay effect contain more…

高能物理 - 唯象学 · 物理学 2015-05-22 Mengchao Zhang

We calculate the corrections to the Higgs wave-function renormalization constant arising from modified cubic, quartic, and quintic Higgs self-couplings up to the two-loop level. Using our analytic results, we derive two-dimensional…

高能物理 - 唯象学 · 物理学 2025-05-28 Ulrich Haisch , Aparna Sankar , Giulia Zanderighi

We study effects of bulk mass on electroweak symmetry breaking and Higgs mass in the scenario of five dimensional SU(3) gauge-Higgs unification defined on M^4\times S^1/Z_2. The asymptotic form of effective potential for the Higgs field is…

高能物理 - 唯象学 · 物理学 2009-11-11 Nobuhito Maru , Kazunori Takenaga

In this paper we explore composite Higgs scenarios through the effects of light top-partners in Higgs+Jet production at the LHC. The pseudo-Goldstone boson nature of the Higgs field means that single-Higgs production via gluon fusion is…

高能物理 - 唯象学 · 物理学 2020-02-19 Andrea Banfi , Barry M. Dillon , Wissarut Ketaiam , Sandra Kvedaraitė

We study the effects of the one-loop renormalisation group running/mixing of the Wilson coefficients in the standard model effective field theory on the predictions for $Hj$, $t\bar tH$ and $HH$ production at the LHC. We focus on a subset…

高能物理 - 唯象学 · 物理学 2024-06-12 Fabio Maltoni , Giuseppe Ventura , Eleni Vryonidou

The LHC has been built to understand the dynamics at the origin of the breaking of the electroweak symmetry. Weakly coupled models with a fundamental Higgs boson have focused most of the attention of the experimental searches. We will…

高能物理 - 唯象学 · 物理学 2015-06-04 J. R. Espinosa , C. Grojean , M. Muehlleitner

We explore new physics scenarios which are optimally probed through precision Higgs measurements rather than direct collider searches. Such theories consist of additional electroweak charged or singlet states which couple directly to or mix…

高能物理 - 唯象学 · 物理学 2015-06-12 Clifford Cheung , Samuel D. McDermott , Kathryn M. Zurek

Higgs cubic coupling plays a crucial role to probe an origin of electroweak symmetry breaking. It is expected that the cubic coupling is measured by Higgs pair production at the LHC and ILC, and the deviations from the standard model can be…

高能物理 - 唯象学 · 物理学 2014-01-29 Naoyuki Haba , Kunio Kaneta , Yukihiro Mimura , Enkhbat Tsedenbaljir