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Multi-Higgs production provides a phenomenologically clear window to the electroweak symmetry breaking sector. We perform a comprehensive and comparative analysis of new electroweak physics effects in di-Higgs and di-Higgs+jet production.…

高能物理 - 唯象学 · 物理学 2013-03-14 Matthew J. Dolan , Christoph Englert , Michael Spannowsky

We analyze the impact of the recently released CDF-II measurement of $W$ mass on the SMEFT analyses of the electroweak precision data as well as Higgs and electroweak diboson productions. We work in the Hagiwara, Ishihara, Szalapski, and…

高能物理 - 唯象学 · 物理学 2022-04-22 Eduardo da Silva Almeida , Alexandre Alves , Oscar J. P. Eboli , M. C. Gonzalez-Garcia

The measurement of Higgs couplings constitute an important part of present Standard Model precision tests at colliders. In this article, we show that modifications of Higgs couplings induce energy-growing effects in specific amplitudes…

高能物理 - 唯象学 · 物理学 2019-11-06 Brian Henning , Davide Lombardo , Marc Riembau , Francesco Riva

Due to the absence of tantalising hints for new physics during the LHC's run 1, the extension of the Higgs sector by dimension six operators will provide the new phenomenological standard for searches of non-resonant extensions of the…

高能物理 - 唯象学 · 物理学 2016-07-28 Christoph Englert , Roman Kogler , Holger Schulz , Michael Spannowsky

One way to hunt for top squarks is to look for deviations from the Standard Model in loop level processes involving Higgses. This method is indirect, but complementary to direct searches as it does not rely on specific top squark decays.…

高能物理 - 唯象学 · 物理学 2018-12-26 Andrea Banfi , Andrew Bond , Adam Martin , Veronica Sanz

We scrutinize the parameter space of the SM-like Higgs boson in the minimal supersymmetric standard model (MSSM) under current experimental constraints. The constraints are from (i) the precison electroweak data and various flavor…

高能物理 - 唯象学 · 物理学 2018-05-09 Jun Zhao

We investigate the effect of including the HERA run I + II combined cross section data on the MMHT2014 PDFs. We present the fit quality within the context of the global fit and when only the HERA data are included. We examine the changes in…

高能物理 - 唯象学 · 物理学 2016-05-12 L. A. Harland-Lang , A. D. Martin , P. Motylinski , R. S. Thorne

The Higgs self-coupling is notoriously intangible at the LHC. It was recently proposed to probe the trilinear Higgs interaction through its radiative corrections to single-Higgs processes. This approach however requires to disentangle these…

高能物理 - 唯象学 · 物理学 2017-09-22 Stefano Di Vita , Christophe Grojean , Giuliano Panico , Marc Riembau , Thibaud Vantalon

In the upcoming LHC run we will be able to probe the structure ofthe loop--induced Higgs--gluon coupling through kinematics. First, we establish state-of-the-art simulations with up to two jets to next-to-leading order including top mass…

高能物理 - 唯象学 · 物理学 2015-06-23 Malte Buschmann , Dorival Goncalves , Silvan Kuttimalai , Marek Schonherr , Frank Krauss , Tilman Plehn

The most recent LHC data have provided a considerable improvement in the precision with which various Higgs production and decay channels have been measured. Using all available public results from ATLAS, CMS and the Tevatron, we derive for…

高能物理 - 唯象学 · 物理学 2013-10-30 G. Belanger , B. Dumont , U. Ellwanger , J. F. Gunion , S. Kraml

Constraints on quartic interactions of the Higgs boson with gauge bosons have been obtained by the experimental LHC collaborations focussing on the so-called $\kappa$ framework of flat rescalings of SM-like interactions in weak boson fusion…

高能物理 - 唯象学 · 物理学 2022-12-08 Anisha , Oliver Atkinson , Akanksha Bhardwaj , Christoph Englert , Panagiotis Stylianou

New physics theories often depend on a large number of free parameters. The precise values of those parameters in some cases drastically affect the resulting phenomenology of fundamental physics processes, while in others finite variations…

高能物理 - 唯象学 · 物理学 2016-05-25 Alexandra Carvalho , Martino Dall'Osso , Tommaso Dorigo , Florian Goertz , Carlo A. Gottardo , Mia Tosi

We analyze the impact of data from the full Run 1 of the LHC at 7 and 8 TeV on the CMSSM with mu > 0 and < 0 and the NUHM1 with mu > 0, incorporating the constraints imposed by other experiments such as precision electroweak measurements,…

In this work, we explore how constraints based on interference effects for the negative gauge-Higgs coupling scenario are affected by new physics. Models that achieve this wrong-sign gauge-Higgs coupling inevitably have new charged Higgs…

高能物理 - 唯象学 · 物理学 2024-10-10 Carlos Henrique de Lima , Daniel Stolarski

In this work we explore in detail the presence of scalar resonances in $WW$ fusion process in the context of the LHC experiments working in the theoretical framework provided by Higgs Effective Field Theories (HEFT). While the phenomenology…

高能物理 - 唯象学 · 物理学 2023-06-21 Iñigo Asiáin , Domènec Espriu , Federico Mescia

The process of charged Higgs production in association with a top quark at the LHC has been calculated at the complete NLO electroweak level both in a Two Higgs Doublets Model and in the Minimal Supersymmetric Standard Model, assuming a…

高能物理 - 唯象学 · 物理学 2009-10-29 M. Beccaria , G. Macorini , L. Panizzi , F. M. Renard , C. Verzegnassi

In the extra dimensional scenarios with gauge fields in the bulk, the Kaluza-Klein (KK) gauge bosons can induce Nambu-Jona-Lasinio (NJL) type attractive four-fermion interactions, which can break electroweak symmetry dynamically with…

高能物理 - 唯象学 · 物理学 2008-11-26 Dong-Won Jung

In this review, we discuss methods of parsing direct and indirect information from collider experiments regarding the Higgs boson and describe simple ways in which experimental likelihoods can be consistently reconstructed and interfaced…

高能物理 - 唯象学 · 物理学 2013-03-20 Aleksandr Azatov , Jamison Galloway

Leptoquarks (LQs) are predicted within Grand Unified Theories and are well motivated by the current flavor anomalies. In this article we investigate the impact of scalar LQs on Higgs decays and oblique corrections as complementary…

高能物理 - 唯象学 · 物理学 2021-05-07 Andreas Crivellin , Dario Mueller , Francesco Saturnino

Composite Higgs models generically predict the existence of heavy spin-1 resonances with the same quantum numbers as electroweak gauge bosons. The effective lagrangian description of these resonances is presented, pointing out the origin of…

高能物理 - 唯象学 · 物理学 2016-09-06 Anna Kaminska