Results 11 to 20 of about 68,432 (208)

Fermiophobic light Higgs boson in the type-I two-Higgs-doublet model

open access: yesPhysics Letters B, 2022
The null results in the new physics searches at the LHC do not exclude a light new particle if the particle is fermiophobic. A good example is the fermiophobic Higgs boson hf in the type-I two-Higgs-doublet model, which occurs if we adopt α=π/2 and the ...
Jinheung Kim   +3 more
doaj   +1 more source

How Long Does the Hydrogen Atom Live?

open access: yesUniverse, 2023
It is possible that the proton is stable while atomic hydrogen is not. This is the case in models with new particles carrying baryon number which are light enough to be stable themselves, but heavy enough so that proton decay is kinematically blocked ...
David McKeen, Maxim Pospelov
doaj   +1 more source

Dilaton Effective Field Theory

open access: yesUniverse, 2022
We review and extend recent studies of dilaton effective field theory (dEFT) that provide a framework for the description of the Higgs boson as a composite structure.
Thomas Appelquist   +2 more
doaj   +1 more source

Higgs physics beyond the Standard Model [PDF]

open access: yesProceedings of ALPS 2019 An Alpine LHC Physics Summit — PoS(ALPS2019), 2021
An Alpine LHC Physics Summit, ALPS2019, Obergurgl, Austria, 22 Apr 2019 - 27 Apr 2019; 8 pp. (2020).
openaire   +6 more sources

Physics Beyond the Standard Model [PDF]

open access: yesAIP 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
openaire   +3 more sources

Sterile neutrino dark matter and leptogenesis in Left-Right Higgs Parity

open access: yesJournal of High Energy Physics, 2021
The standard model Higgs quartic coupling vanishes at (109 − 1013) GeV. We study SU(2) L × SU(2) R × U(1) B−L theories that incorporate the Higgs Parity mechanism, where this becomes the scale of Left-Right symmetry breaking, v R .
David Dunsky   +2 more
doaj   +1 more source

New approach to search for parity-even and parity-odd time-reversal violation beyond the Standard Model in a storage ring

open access: yesPhysics Letters B, 2020
Time-reversal breaking and parity-conserving millistrong interactions, suggested in 1965, still remain a viable mechanism of CP-violation beyond the Standard Model.
N.N. Nikolaev   +3 more
doaj   +1 more source

Gravitational tests of electroweak relaxation

open access: yesJournal of High Energy Physics, 2021
We consider a scenario in which the electroweak scale is stabilized via the relaxion mechanism during inflation, focussing on the case in which the back-reaction potential is generated by the confinement of new strongly interacting vector-like fermions ...
Daniele Barducci   +2 more
doaj   +1 more source

Lectures on physics beyond the Standard Model [PDF]

open access: yesJournal 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 ...
openaire   +3 more sources

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