Results 21 to 30 of about 470 (175)

Studying Same‐Sign Top Pair Production through Top‐Higgs FCNC Interactions at the HL‐LHC

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
We investigate the potential of the HL‐LHC for discovering new physics effects via the same‐sign top pair signatures. We focus on the semileptonic (electron and muon) decay of the top quarks and study the reach for a simplified model approach where top quark flavor changing could occur through a neutral scalar exchange.
O. M. Ozsimsek   +3 more
wiley   +1 more source

Phenomenological implications of supersymmetry breaking by the dilaton [PDF]

open access: yesPhysics Letters B, 1993
We investigate the low energy properties of string vacua with spontaneously broken $N=1$ supersymmetry by a dilaton $F$-term. As a consequence of the universal couplings of the dilaton, the supersymmetric mass spectrum is determined in terms of only three independent parameters and more constrained than in the minimal supersymmetric Standard Model. For
R. Barbieri, J. Louis, MORETTI, Mauro
openaire   +3 more sources

Calculated Event Rates for Axion Detection via Atomic and Nuclear Processes

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
The possibility of detection of 5.5 MeV and 14.4 keV solar axions by observing axion‐induced nuclear and atomic transitions is investigated. The presence of nuclear transitions between spin orbit partners can be manifested by the subsequent deexcitation via gamma ray emissions.
John D. Vergados   +3 more
wiley   +1 more source

Phenomenology of Dirac neutrinogenesis in split supersymmetry [PDF]

open access: yesPhysical Review D, 2006
37 pages, 8 ...
Thomas, Brooks, Toharia, Manuel
openaire   +2 more sources

Relaxing the W′ Constraint on Compact Extradimension

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
In this paper, we study the constraint on brane tension and compactification scale for models with brane fluctuations using the results from the direct search of W′ at 13 TeV LHC, with an integrated luminosity of 36.1fb−1, in the case for which branon forms the entire cold dark matter.
Mathew Thomas Arun   +1 more
wiley   +1 more source

Phenomenological constraints on patterns of supersymmetry breaking [PDF]

open access: yesPhysics Letters B, 2003
17 pages LaTeX, 9 eps ...
Ellis, John   +3 more
openaire   +2 more sources

Lepton flavor violations in SUSY models for muon g − 2 with right-handed neutrinos

open access: yesJournal of High Energy Physics, 2021
We consider supersymmetric (SUSY) models for the muon g − 2 anomaly without flavor violating masses at the tree-level. The models can avoid LHC constraints and the vacuum stability constraint in the stau-Higgs potential.
Ryo Nagai, Norimi Yokozaki
doaj   +1 more source

Scale hierarchies in particle physics and cosmology

open access: yesEPJ Web of Conferences, 2018
I describe the phenomenology of a model of supersymmetry breaking in the presence of a tiny (tuneable) positive cosmological constant. It utilises a single chiral multiplet with a gauged shift symmetry, that can be identified with the string dilaton (or ...
Antoniadis I.
doaj   +1 more source

On a reinterpretation of the Higgs field in supersymmetry and a proposal for new quarks

open access: yesPhysics Letters B, 2017
In the framework of supersymmetry, when R-parity is violated the Higgs doublet superfield Hd can be interpreted as another doublet of leptons, since all of them have the same quantum numbers. Thus Higgs scalars are sleptons and Higgsinos are leptons.
D.E. López-Fogliani, C. Muñoz
doaj   +1 more source

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