Results 31 to 40 of about 1,994 (164)
Supersymmetric standard models on D-branes [PDF]
Physics Letters B, 2001 Type IIB superstring models with the standard model gauge group on D3-branes and with massless matter associated with open strings joining D3-branes to D3-branes or D3-branes to ${\rm D}7_3$-branes are studied. Models with gauge coupling constant unification at an intermediate scale between about $10^{10}$ and $10^{12}$GeV and consistency with the ...
David Bailin, G. V. Kraniotis, A. Love
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Closing the window for compressed dark sectors with disappearing charged tracks
Journal of High Energy Physics, 2017 We investigate the sensitivity at current and future hadron colliders to a heavy electrically-charged particle with a proper decay length below a centimetre, whose decay products are invisible due to below-threshold energies and/or small couplings to the
Rakhi Mahbubani +2 more
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Moderately suppressed dimension-five proton decay in a flipped SU(5) model
Journal of High Energy Physics, 2022 We study colored Higgsino-mediated proton decay (dimension-five proton decay) in a model based on the flipped SU(5) GUT. In the model, the GUT-breaking 10, 10 ¯ $$ \overline{\mathbf{10}} $$ fields have a GUT-scale mass term and gain VEVs through higher ...
Naoyuki Haba, Toshifumi Yamada
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THE MINIMAL SUPERSYMMETRIC STANDARD MODEL [PDF]
Modern Physics Letters A, 1996 The structure of the MSSM is reviewed. We first motivate the particle content of the theory by examining the quantum numbers of the known standard model particles and by the requirement of anomaly cancellation. Once the particle content is fixed we can write down the most general renormalizable superpotential.
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Probing new electroweak states via precision measurements at the LHC and future colliders
Journal of High Energy Physics, 2019 Several new physics scenarios, motivated e.g. by dark matter, feature new electroweakly charged states where the lightest particle in the multiplet is stable and neutral.
Luca Di Luzio +2 more
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Journal of High Energy Physics, 2020 We study 3rd family Yukawa unification in the context of supersymmetric (SUSY) SO (10) GUTs and SO(10)-motivated boundary conditions for the SUSY-breaking soft terms.
Stefan Antusch +2 more
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Time-delayed electrons from neutral currents at the LHC
Journal of High Energy Physics, 2021 We investigate long-lived particles (LLPs) produced in pair from neutral currents and decaying into a displaced electron plus two jets at the LHC, utilizing the proposed minimum ionizing particle timing detector at CMS. We study two benchmark models: the
Kingman Cheung +2 more
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Triplet extended supersymmetric standard model [PDF]
Physical Review D, 2008 26 pages, 19 figures. Errors on the RGEs corrected and consequential changes applied. Plots updated and discussion broadened.
Ken Hsieh, Stefano Di Chiara
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Charged fermions below 100 GeV
Journal of High Energy Physics, 2018 How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV.
Daniel Egana-Ugrinovic +2 more
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Duality of a Supersymmetric Standard Model [PDF]
Progress of Theoretical Physics, 1996 We examine a dual theory of a Supersymmetric Standard Model(SSM) in terms of an $SU(3)_C$ gauge group. In this scenario, it is naturally understood that at least one quark (the top quark) should be heavy, i.e., almost the same order as the weak scale. Moreover, the supersymmetric Higgs mass parameter $ $ can naturally be expected to be small.
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