Results 51 to 60 of about 440 (160)

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

Asymptotics of 5d supergravity theories and the emergent string conjecture

Journal 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, Stefano Lanza, Timo Weigand   +2 more
doaj   +1 more source

Braneworld black holes [PDF]

, 2006
The braneworld paradigm provides an interesting framework within which to explore the possibility that our Universe lives in a fundamentally higher dimensional space- time.
Whisker, Richard
core  

Single versus multifield scalar potentials from string theory

Journal 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, Muthusamy Rajaguru, George Tringas   +2 more
doaj   +1 more source

Linking the supersymmetric standard model to the cosmological constant. [PDF]

J High Energy Phys, 2021
Qiu YC, Tye SH.
europepmc   +1 more source

Uncovering quasi-degenerate Kaluza-Klein Electro-Weak gauge bosons with top asymmetries at the LHC

, 2013
By exploiting the correlation between charge and spin polarisation asymmetries in t-tbar, we show that combining the two observables could identify the presence of quasi-degenerate states in a resonant signal at the LHC.
Moretti, S., Accomando, E., Mimasu, K.
core   +1 more source

A distance conjecture beyond moduli?

Journal 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, Flavio Tonioni, Thomas Van Riet   +2 more
doaj   +1 more source

Henry Tye: the future of theoretical physics and advice to young researchers. [PDF]

Natl Sci Rev, 2021
Cai YF, Yan SF.
europepmc   +1 more source

Intersecting end of the world branes

Journal 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, Andriana Makridou, Angel M. Uranga   +2 more
doaj   +1 more source

Unitarity problems for an effective field theory description of early universe cosmology. [PDF]

Eur Phys J C Part Fields, 2022
Brandenberger R, Kamali V.
europepmc   +1 more source