Results 71 to 80 of about 8,027 (168)

Morse-Bott inequalities, topology change and cobordisms to nothing

Journal of High Energy Physics
The Cobordism Conjecture predicts spacetime-ending configurations, such as Bubbles of Nothing (BoN), being commonplace. These correspond to vacuum decays in which the compactification manifold C n $$ {\mathcal{C}}_n $$ shrinks to a point, with the ...
Ignacio Ruiz
doaj   +1 more source

"Big" Divisor D3/D7 Swiss Cheese Phenomenology

, 2010
We review progress made over the past couple of years in the field of Swiss Cheese Phenomenology involving a mobile space-time filling D3-brane and stack(s) of fluxed D7-branes wrapping the "big" (as opposed to the "small") divisor in (the orientifold of
AALOK MISRA, Balasubramanian V., Baumann D., Becker K., Berg M., Burgess C. P., Conlon J. P., Conlon J. P., Conlon J. P., Conlon J. P., Denef F., Grimm T. W., Misra A., Saltman A., Witten E.   +14 more
core   +1 more source

Sequestered de Sitter String Scenarios: Soft-terms [PDF]

, 2014
We analyse soft supersymmetry breaking in type IIB de Sitter string vacua after moduli stabilisation, focussing on models in which the Standard Model is sequestered from the supersymmetry breaking sources and the spectrum of soft-terms is hierarchically ...
Aparicio, Luis, Cicoli, Michele, Krippendorf, Sven, Maharana, Anshuman, Muia, Francesco, Quevedo, Fernando   +5 more
core   +2 more sources

New comments on six-dimensional orientifold vacua with reduced rank and unitarity constraints

Journal of High Energy Physics
We revisit and extend the construction of six-dimensional orientifolds built upon the T 4/ℤ N orbifolds with a non-vanishing Kalb-Ramond background, both in the presence of N $$ \mathcal{N} $$ = (1, 0) supersymmetry and Brane Supersymmetry Breaking, thus
Giorgio Leone
doaj   +1 more source

Black holes as probes of moduli space geometry

Journal of High Energy Physics, 2023
We argue that supersymmetric BPS states can act as efficient finite energy probes of the moduli space geometry thanks to the attractor mechanism. We focus on 4d N $$ \mathcal{N} $$ = 2 compactifications and capture aspects of the effective field theory ...
Matilda Delgado, Miguel Montero, Cumrun Vafa   +2 more
doaj   +1 more source

Scale separation from O-planes

Journal of High Energy Physics
Orientifold planes play a crucial role in flux compactifications of string theory, and we demonstrate their deep connection to achieving scale-separated solutions.
George Tringas, Timm Wrase
doaj   +1 more source

Derivative corrections to extremal black holes with moduli

Journal of High Energy Physics, 2023
We derive formulas for the leading mass, entropy, and long-range self-force corrections to extremal black holes due to higher-derivative operators. These formulas hold for black holes with arbitrary couplings to gauge fields and moduli, provided that the
Muldrow Etheredge, Ben Heidenreich
doaj   +1 more source

Minimal left-right symmetric intersecting D-brane model

, 2017
We investigate left-right symmetric extensions of the standard model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes.
Anchordoqui, Luis A., Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lust, Dieter, Taylor, Tomasz R.   +5 more
core   +3 more sources

Supersymmetric scale-separated AdS3 orientifold vacua of type IIB

Journal of High Energy Physics
I construct supersymmetric AdS3 vacua of type IIB string theory that exhibit parametric scale separation in the controlled regime. These solutions arise from compactifications on seven-dimensional manifolds equipped with co-closed G 2-structures, in the ...
Vincent Van Hemelryck
doaj   +1 more source

On stabilization of magnetically charged brane shell and over-extremality

Journal of High Energy Physics
In string theory, we can geometrically realize a metastable state by wrapping D5-branes and anti D5-branes to a singular manifold. We consider wrapping D3-branes to the internal space in this setup.
Sohei Tsukahara
doaj   +1 more source