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Dark matter, dark radiation and gravitational waves from mirror Higgs parity
Journal of High Energy Physics, 2020 An exact parity replicates the Standard Model giving a Mirror Standard Model, SM ↔ SM ′ . This “Higgs Parity” and the mirror electroweak symmetry are spontaneously broken by the mirror Higgs, 〈H ′〉 = v ′ ≫ 〈H〉, yielding the Standard Model Higgs as a ...
David Dunsky +2 more
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Outstanding questions: physics beyond the Standard Model [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 The Standard Model of particle physics agrees very well with experiment, but many important questions remain unanswered, among them are the following. What is the origin of particle masses and are they due to a Higgs boson? How does one understand the number of species of matter particles and how do they mix?
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Di-Higgs production in the 4b channel and gravitational wave complementarity
Journal of High Energy Physics, 2020 We present a complementarity study of gravitational waves and double Higgs production in the 4b channel, exploring the gauge singlet scalar extension of the SM.
Alexandre Alves +4 more
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Physics Beyond the Standard Model [PDF]
AIP Conference Proceedings, 2009 I present a brief overview of some exciting possibilities for physics Beyond the Standard Model. I include short discussions of neutrino physics, the strong CP problem and axions, GUTs, large and warped extra dimensions, Little Higgs models and supersymmetry.
Howard Baer, Marvin L. Marshak
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Journal of High Energy Physics, 2020 We show the presence of a potentially detectable gamma-ray line in the Fermi Galactic center excess in light of the secluded (vector) dark matter (DM) model in which the hidden scalar, nearly degenerate with DM in mass, mediates the interaction of the ...
Kwei-Chou Yang
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Leptogenesis from a U(1) D resonance
Journal of High Energy Physics, 2020 We propose a novel mechanism to realize leptogenesis through the Breit- Wigner resonance of a dark U(1) D gauge boson Z D , which mediates lepton number vi- olating annihilations of dark matter (DM) in the context of the scotogenic model with a U(1) D ...
Eung Jin Chun +2 more
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Physics Beyond the Standard Model: Supersymmetry
, 2008 This collection of studies on new physics at the LHC constitutes the report of the supersymmetry working group at the Workshop `Physics at TeV Colliders', Les Houches, France, 2007. They cover the wide spectrum of phenomenology in the LHC era, from alternative models and signatures to the extraction of relevant observables, the study of the MSSM ...
Nojiri, M. M. +32 more
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Lectures on physics beyond the Standard Model [PDF]
Journal of the Korean Physical Society, 2021 61 pages, no figures, Lectures at 2019 IBS-CTPU Summer School on Cosmology and Particle Physics, 22-26 July, 2019, Daejeon, Korea, v2: references added, v3: typos corrected and improved discussion, v4: expanded discussion with four-form flux relaxation, Journal ...
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Mass hierarchy and physics beyond the Standard Model
EPJ Web of Conferences, 2014 I discuss the status of the mass hierarchy problem and prospects for beyond the Standard Model physics in the light of the Higgs scalar discovery at the LHC and the experimental searches for new physics.
Antoniadis Ignatios
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Scalar dark matter: real vs complex
Journal of High Energy Physics, 2017 We update the parameter spaces for both a real and complex scalar dark matter via the Higgs portal. In the light of constraints arising from the LUX 2016 data, the latest Higgs invisible decay and the gamma ray spectrum, the dark matter resonant mass ...
Hongyan Wu, Sibo Zheng
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