Results 21 to 30 of about 110 (109)
D-branes at Singularities and String Phenomenology
Nuclear Physics B - Proceedings Supplements, 2007 In these notes we give an introduction to some of the concepts involved in constructing SM-like gauge theories in systems of branes at singularities of CY manifolds. These notes are an expanded version of lectures given by Herman Verlinde at the Cargese 2006 Summer School.
Malyshev, Dmitry, Verlinde, Herman
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LHC phenomenology and cosmology of string-inspired intersecting D-brane models
Physical Review D, 2012 Matching version to be published in Physical Review D. arXiv admin note: text overlap with arXiv:0808.1405, arXiv:astro-ph/0205116, arXiv:hep-ph/0305075, arXiv:astro-ph/0406663, arXiv:hep-ph/0411125 by other ...
Anchordoqui, Luis A. +6 more
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Journal of High Energy Physics, 2020 We present a mechanism for realizing hybrid inflation using two axion fields with a purely non-perturbatively generated scalar potential. The structure of the scalar potential is highly constrained by the discrete shift symmetries of the axions.
Federico Carta +3 more
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Some properties of the QQq-quark potential in string models
Journal of High Energy Physics, 2021 We propose a string theory construction which allows us to study properties of the potential of two heavy quarks coupled to a light quark. In such a case, the potential is a function of separation between the heavy quarks.
Oleg Andreev
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A CMB Millikan experiment with cosmic axiverse strings
Journal of High Energy Physics, 2020 We study axion strings of hyperlight axions coupled to photons. Hyperlight axions — axions lighter than Hubble at recombination — are a generic prediction of the string axiverse.
Prateek Agrawal, Anson Hook, Junwu Huang
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Thraxions: ultralight throat axions
Journal of High Energy Physics, 2019 We argue that a new type of extremely light axion is generically present in the type IIB part of the string theory landscape. Its mass is suppressed by the third power of the warp factor of a strongly warped region (Klebanov-Strassler throat), suggesting
Arthur Hebecker +3 more
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Resolving the (g − 2) μ discrepancy with F $$ \mathcal{F} $$ –SU(5) intersecting D-branes
Journal of High Energy Physics, 2021 A discrepancy between the measured anomalous magnetic moment of the muon (g − 2) μ and computed Standard Model value now stands at a combined 4.2σ following experiments at Brookhaven National Lab (BNL) and the Fermi National Accelerator Laboratory (FNAL).
Joseph L. Lamborn +3 more
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Journal of High Energy Physics, 2019 A novel non-minimal interaction of neutral right-handed fermion and abelian gauge field in the covariant Θ-exact noncommutative standard model (NCSM) which is invariant under Very Special Relativity (VSR) Lorentz subgroup, opens an avenue to study the ...
J. Selvaganapathy +2 more
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Superheavy dark matter from string theory
Journal of High Energy Physics, 2021 Explicit string models which can realize inflation and low-energy supersymmetry are notoriously difficult to achieve. Given that sequestering requires very specific configurations, supersymmetric particles are in general expected to be very heavy ...
Rouzbeh Allahverdi +3 more
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No-go theorems for ekpyrosis from ten-dimensional supergravity
Journal of High Energy Physics, 2018 In this note we investigate whether the new ekpyrotic scenario can be embedded into ten-dimensional supergravity. We use that the scalar potential obtained from flux compactifications of type II supergravity with sources has a universal scaling with ...
Kunihito Uzawa
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