Results 41 to 50 of about 8,027 (168)

Cobordism, singularities and the Ricci flow conjecture

open access: yesJournal of High Energy Physics, 2023
In the following work, an attempt to conciliate the Ricci flow conjecture and the Cobordism conjecture, stated as refinements of the Swampland distance conjecture and of the No global symmetries conjecture respectively, is presented.
David Martín Velázquez   +2 more
doaj   +1 more source

Kination, meet Kasner: on the asymptotic cosmology of string compactifications

open access: yesJournal of High Energy Physics, 2023
We study runaway, kination-dominated epochs in string cosmology. We show how the apparent classical decompactification runaway of the volume modulus, described by a kination epoch in the 4-dimensional EFT, can be uplifted to a classical Kasner solution ...
Fien Apers   +3 more
doaj   +1 more source

Warped brane world supergravity, flipping, and the Scherk-Schwarz mechanism [PDF]

open access: yes, 2002
We demonstrate the relation between the Scherk-Schwarz mechanism and flipped gauged brane-bulk supergravities in five dimensions. We discuss the form of supersymmetry violating Scherk-Schwarz terms in pure supergravity and in supergravity coupled to ...
Lalak, Zygmunt, Matyszkiewicz, Radoslaw
core   +3 more sources

α′ corrections to KPV: an uplifting story

open access: yesJournal of High Energy Physics, 2023
In earlier work, the effect of α′2 curvature corrections on the NS5-brane responsible for the decay of anti-D3-branes in the set-up of Kachru, Pearson, and Verlinde (KPV) was considered. We extend this analysis to include all known α′2 corrections to the
Simon Schreyer, Victoria Venken
doaj   +1 more source

A Toy Model for Gauge-Mediation in Intersecting Brane Models

open access: yes, 2009
We discuss the phenomenology of a toy intersecting brane model where supersymmetry is dynamically broken in an open string hidden sector and gauge-mediated to the visible sector. Scalar masses ~ TeV are easily realizable, and R-symmetry is broken.
F. Denef, Jason Kumar
core   +1 more source

The supersymmetry breaking soft terms, and fermion masses and mixings in the supersymmetric Pati-Salam model from intersecting D6-branes

open access: yesJournal of High Energy Physics, 2022
A supersymmetric Pati-Salam model with wrapping number equal to 5 has been constructed in Type IIA orientifolds on T 6 /(ℤ 2 × ℤ 2) with intersecting D6-branes recently.
Mudassar Sabir   +3 more
doaj   +1 more source

Invariant length scale in relativistic kinematics - Lessons from Dirichlet branes

open access: yes, 2003
We show that Dirac-Born-Infeld theory possesses a hidden invariance that enhances the local O(1,p) Lorentz symmetry on a Dirichlet p-brane to an O(1,p) x O(1,p) gauge group, encoding both an invariant velocity and acceleration (or length) scale.
Amelino-Camelia   +21 more
core   +1 more source

Models of Particle Physics from Type IIB String Theory and F-theory: A Review [PDF]

open access: yes, 2012
We review particle physics model building in type IIB string theory and F-theory. This is a region in the landscape where in principle many of the key ingredients required for a realistic model of particle physics can be combined successfully.
Maharana, Anshuman, Palti, Eran
core   +1 more source

Uplift and towers of states in warped throat

open access: yesJournal of High Energy Physics, 2023
We investigate the connection between the distance conjecture and the uplift potential. For this purpose, we consider the concrete model, the warped deformed conifold embedded into Type IIB flux compactifications, with the uplift potential produced by D ...
Min-Seok Seo
doaj   +1 more source

Surveying Standard Model Flux Vacua on $T^6/Z_2\times Z_2$ [PDF]

open access: yes, 2005
We consider the SU(2)LxSU(2)R Standard Model brane embedding in an orientifold of T6/Z2xZ2. Within defined limits, we construct all such Standard Model brane embeddings and determine the relative number of flux vacua for each construction.
A. Font   +57 more
core   +2 more sources

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