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We show that the upper bound on the lightest Higgs mass in the MSSM is relaxed by introducing a singlet which couples to the Higgs fields, even at a large tan beta region, preferable for explaining the muon anomalous magnetic moment. In the…

High Energy Physics - Phenomenology · Physics 2011-11-09 Kazunori Nakayama , Norimi Yokozaki , Kazuya Yonekura

We present a new solution to the Higgs hierarchy problem based on dynamical vacuum selection in a landscape scanning the Higgs mass. In patches where the Higgs mass parameter takes a natural value, the Higgs potential only admits a minimum…

High Energy Physics - Phenomenology · Physics 2025-12-08 Sean Benevedes , Ameen Ismail , Thomas Steingasser

Since the discovery of the Higgs boson in 2012 by the ATLAS and CMS Collaborations a lot of progress has been made in verifying the nature of this new bosonic particle. Still, questions remain as to whether this new particle is the standard…

High Energy Physics - Experiment · Physics 2024-06-11 Torben Lange

A new method of deriving the Higgs Lagrangian from vector-like gauge theories is explored. After performing a supersymmetric extension of gauge theories we identify the auxiliary field associated with the "meson" superfield, in the low…

High Energy Physics - Theory · Physics 2007-05-23 Noriaki Kitazawa , Francesco Sannino

We argue that the hierarchy problem of the standard model of particle physics can be solved by adding a state-dependent term to the Higgs sector. We present an example of a scalar field with a Higgs-like potential with an additional term…

High Energy Physics - Phenomenology · Physics 2025-10-15 David E. Kaplan , Surjeet Rajendran

The charged Higgs boson plays an essential role in distinguishing between a wide variety of standard model extensions with multiple Higgs doublets, and has been searched for in various collider experiments. This paper expands our previous…

High Energy Physics - Phenomenology · Physics 2023-09-12 ChunHao Fu , Jun Gao

In this work we consider the Linear BESS model at the LHC. This model can be seen as an adequate benchmark for exploring the phenomenological consequences of a composite Higgs sector since its particle content is the one we would expect in…

High Energy Physics - Phenomenology · Physics 2018-09-26 Jose Urbina , Alfonso R. Zerwekh

Run I of the LHC has not revealed any sign of new physics beyond the Standard Model (BSM). However, the discovery of an SM-like Higgs boson with mass around 125 GeV opens up new possibilities for probing various BSM scenarios with enlarged…

High Energy Physics - Phenomenology · Physics 2014-07-03 Beranger Dumont

The Higgs mechanism is designed to generate mass for massless particles. The mass comes from the interaction of observed particles with an external field -- the Higgs field. In the past, several alternatives to the Higgs mechanism for mass…

High Energy Physics - Theory · Physics 2009-09-11 Tarun Biswas

We reconsider the signature of events with two charged leptons and missing energy as a signal for the detection of the Standard Model Higgs boson in the mass region M(Higgs)=155--180 GeV. It is shown that a few simple experimental criteria…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Dittmar , H. Dreiner

Upper bounds on the three neutral scalar Higgs masses are considered in the supersymmetric standard model with a gauge singlet Higgs field. When the lightest Higgs is singlet-dominated the second lightest Higgs is shown to lie near or below…

High Energy Physics - Phenomenology · Physics 2011-01-13 Jun-ichi Kamoshita , Yasuhiro Okada , Minoru Tanaka

We summarize the possible processes which may be used to search for a Higgs boson, of mass in the range 114-130 GeV, at the LHC. We discuss, in detail, two processes with rapidity gaps: exclusive Higgs production with tagged outgoing…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. De Roeck , V. A. Khoze , A. D. Martin , R. Orava , M. G. Ryskin

Interpretations of searches for the Higgs boson are governed by model-dependent combinations of Higgs production cross sections and Higgs branching ratios. Mixing of the Higgs doublet with a hidden sector captures modifications from the…

High Energy Physics - Phenomenology · Physics 2012-04-23 Christoph Englert

We discuss the prediction of the $W$ boson mass in a simple extension of the Standard Model ($\Sigma {\rm SM}$) with a real scalar triplet. A shift in the $W$ mass as reported by the CDF II collaboration can naturally be accommodated by the…

High Energy Physics - Phenomenology · Physics 2022-08-18 Pavel Fileviez Perez , Hiren H. Patel , Alexis D. Plascencia

We consider low scale gauge mediation models with a very light gravitino m_{3/2}~16 eV, in the light of recent experimental hints on the Higgs boson mass. The light gravitino is very interesting since there is no gravitino over-production…

High Energy Physics - Phenomenology · Physics 2015-06-05 Tsutomu T. Yanagida , Norimi Yokozaki , Kazuya Yonekura

We discuss a possibility that the parameter space of the two Higgs doublet model is significantly narrowed down by considering the synergy between direct searches for additional Higgs bosons at the LHC and its luminosity upgraded operation…

High Energy Physics - Phenomenology · Physics 2021-04-07 Masashi Aiko , Shinya Kanemura , Mariko Kikuchi , Kentarou Mawatari , Kodai Sakurai , Kei Yagyu

The status of the Higgs boson mass in the Standard Model and its supersymmetric extensions is reviewed and the perspectives of Higgs searches are discussed. The parameter space of the Minimal Supersymmetric Standard Model (MSSM) is analysed…

High Energy Physics - Phenomenology · Physics 2009-11-19 D. I. Kazakov

The observed dark energy in the universe might give particles inertial mass. We investigate one realization of this idea, that the dark energy field might be a decayed scalar component of a supermultiplet field in the early universe that…

Astrophysics · Physics 2007-05-23 Robert J. Nemiroff , Bijunath Patla

We calculate the Higgs-boson mass spectrum and the corresponding mixing of the Higgs states in the Minimal Supersymmetric Standard Model (MSSM). We assume a mass-hierarchy with heavy SUSY particles and light Higgs bosons. To investigate…

High Energy Physics - Phenomenology · Physics 2022-08-09 Nick Murphy , Heidi Rzehak

The discovery of the long awaited Higgs boson is described using data from the CMS detector at the LHC. In the SM the masses of fermions and the heavy gauge bosons are generated by the interactions with the Higgs field, so all couplings are…

High Energy Physics - Phenomenology · Physics 2013-09-04 W. de Boer