Results 81 to 90 of about 8,027 (168)

Constraining the string scale: from Planck to Weak and back again

open access: yes, 2004
String and field theory ideas have greatly influenced each other since the so called second string revolution. We review this interrelation paying particular attention to its phenomenological implications.
Abel S A   +67 more
core   +1 more source

Asymptotics of 5d supergravity theories and the emergent string conjecture

open access: yesJournal of High Energy Physics
We invoke probe brane arguments to classify the asymptotic behavior of general five-dimensional supergravity theories with eight supercharges near infinite distance boundaries of the vector multiplet moduli space.
Lukas Kaufmann   +2 more
doaj   +1 more source

Single versus multifield scalar potentials from string theory

open access: yesJournal of High Energy Physics
In this work, we investigate the properties of string effective theories with scalar field(s) and a scalar potential. We first claim that in most examples known, such theories are multifield, with at least 2 non-compact field directions; the few counter ...
David Andriot   +2 more
doaj   +1 more source

A distance conjecture beyond moduli?

open access: yesJournal of High Energy Physics
The distance conjecture states that for theories with moduli coupled to gravity a tower of states becomes exponentially light in the geodesic distance in moduli space. This specifies how effective field theories break down for large field values. However,
Cédric Debusschere   +2 more
doaj   +1 more source

Intersecting end of the world branes

open access: yesJournal of High Energy Physics
Dynamical cobordisms implement the swampland cobordism conjecture in the framework of effective field theory, realizing codimension-1 end of the world (ETW) branes as singularities at finite spacetime distance at which scalars diverge to infinite field ...
Roberta Angius   +2 more
doaj   +1 more source

4D GUT (and SM) Model Building from Intersecting D-Branes

open access: yes, 2003
We provide a general overview of the current state of the art in three generation model building proposals - using intersecting D-brane toroidal compactifications of IIA string theories - which have, only, the SM at low energy.
Kokorelis, Christos
core   +1 more source

Generalized three-family supersymmetric Pati-Salam models from Type IIA intersecting D6-branes

open access: yesJournal of High Energy Physics
Generalizing three-family chiral fermion conditions to I ac = −(3 + h) and I a c ′ = h $$ {I}_{a{c}^{\prime }}=h $$ , with positive integer h, we extend the landscape of three-family N = 1 $$ \mathcal{N}=1 $$ supersymmetric Pati-Salam models in a broader
Tianjun Li, Qi Sun, Rui Sun, Lina Wu
doaj   +1 more source

Home - About - Disclaimer - Privacy