Results 1 to 10 of about 440 (160)
Phenomenology of mixed modulus-anomaly mediation in fluxed string compactifications and brane models [PDF]
Journal of High Energy Physics, 2005 In some string compactifications, for instance the recently proposed KKLT set-up, light moduli are stabilized by nonperturbative effects at supersymmetric AdS vacuum which is lifted to a dS vacuum by supersymmetry breaking uplifting potential. In such models, soft supersymmetry breaking terms are determined by a specific mixed modulus-anomaly mediation
Kiwoon Choi, Ken-Ichi Okumura
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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 ...
Luis A Anchordoqui +2 more
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Asymptotic scalar field cosmology in string theory
Journal of High Energy Physics, 2022 Asymptotic (late-time) cosmology depends on the asymptotic (infinite-distance) limits of scalar field space in string theory. Such limits feature an exponentially decaying potential V ~ exp(−cϕ) with corresponding Hubble scale H ~ ϕ ̇ 2 + 2 V $$ \sqrt ...
Tom Rudelius
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Fine-tuned vs. natural supersymmetry: what does the string landscape predict?
Journal of High Energy Physics, 2022 A vast array of (metastable) vacuum solutions arise from string compactifications, each leading to different 4-d laws of physics. The space of these solutions, known as the string landscape, allows for an environmental solution to the cosmological ...
Howard Baer +3 more
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Radiative natural supersymmetry emergent from the string landscape
Journal of High Energy Physics, 2022 In string theory with flux compactifications, anthropic selection for structure formation from a discretuum of vacuum energy values provides at present our only understanding of the tiny yet positive value of the cosmological constant.
Howard Baer +3 more
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On asymptotic dark energy in string theory
Journal of High Energy Physics, 2023 We examine bounds on accelerated expansion in asymptotic regions of the moduli space in string theory compactifications to four spacetime dimensions. While there are conjectures that forbid or constrain accelerated expansion in such asymptotic regions ...
Sera Cremonini +4 more
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Journal of High Energy Physics, 2023 We have constructed all the three-family N $$ \mathcal{N} $$ = 1 supersymmetric Pati-Salam models from intersecting D6-branes, and obtained 33 independent models in total.
Tianjun Li, Rui Sun, Lina Wu
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The cosmological constant is probably still zero
Journal of High Energy Physics, 2023 We consider a wide class of four-dimensional effective field theories in which gravity is coupled to multiple four-forms and their dual scalar fields, with membrane sources charged under the corresponding three-form potentials.
Yang Liu +2 more
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Curvature corrections to KPV: do we need deep throats?
Journal of High Energy Physics, 2022 We consider α′2 curvature corrections to the action of an NS5-brane which plays the key role in the metastability analysis of warped anti-D3-brane uplifts by Kachru, Pearson and Verlinde (KPV). Such corrections can dramatically alter the KPV analysis. We
Arthur Hebecker +2 more
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The complete search for the supersymmetric Pati-Salam models from intersecting D6-branes
Journal of High Energy Physics, 2022 We construct a systematic method to build all the possible three-family N $$ \mathcal{N} $$ = 1 supersymmetric Pati-Salam models from Type IIA orientifolds on 𝕋6 /(ℤ2 × ℤ2) with intersecting D6-branes, in which the SU(4) C × SU(2) L × SU(2) R gauge ...
Weikun He, Tianjun Li, Rui Sun
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