Results 71 to 80 of about 440 (160)

The cosmological constant and the weak gravity conjecture

Journal of High Energy Physics
We examine the descent via membrane nucleation through a landscape of vacua where the cosmological constant is given by a combination of four-form fluxes.
Yang Liu, Antonio Padilla, Francisco G. Pedro   +2 more
doaj   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Aspects of beyond the Standard Model string phenomenology

, 2010
String theory is currently the best-known candidate for a theory of quantum gravity, having the necessary ingredients to describe all known elementary particles and interactions.
March-Russell, John, Rosa, Joao P T G
core   +2 more sources

Higher order corrections to KPV: The nonabelian brane stack perspective

Journal of High Energy Physics
In this work, we study the decay of D 3 ¯ $$ \overline{D3} $$ -branes in the setup of Kachru, Pearson, and Verlinde (KPV) at higher order in α′ from the perspective of a nonabelian D 3 ¯ $$ \overline{D3} $$ -brane stack.
Simon Schreyer
doaj   +1 more source

Some phenomenology of intersecting D-brane models

, 2004
We present some phenomenology of a new class of intersecting D-brane models. Soft SUSY breaking terms for these models are calculated in the complex structure (u)-moduli dominant SUSY breaking approach (in type IIA).
Kane, Gordon L., Kumar, Piyush, Wang, Ting T., Lykken, Joseph D.   +3 more
core  

D-branes, String Cosmology and Large Extra Dimensions

, 1999
D-branes are fundamental in all scenarios where there are large extra dimensions and the string scale is much smaller than the four-dimensional Planck mass.
Riotto, Antonio
core   +1 more source

LREE of a dressed Dp-brane with transverse motion in the partially compact spacetime

Journal of High Energy Physics
In the context of the type IIA/IIB superstring theories, we derive the left-right entanglement entropy (LREE) of a BPS Dp-brane with transverse motion in the presence of a U(1) gauge potential and the Kalb-Ramond field in the partially compact spacetime ...
Hamidreza Daniali, Davoud Kamani
doaj   +1 more source

Aspects of type I string phenomenology

, 1999
We study different phenomenological aspects of compact, D=4, N=1 Type IIB orientifolds considered as models for unification of the standard model and gravity.
IBANEZ LE, MUNOZ C, RIGOLIN, STEFANO
core   +1 more source

Autoencoder-driven clustering of intersecting D-brane models via tadpole charge

Journal of High Energy Physics
We study the well-known type IIA intersecting D-brane models on the T 6 / ℤ 2 × ℤ 2 ′ $$ {T}^6/\left({\mathbb{Z}}_2\times {\mathbb{Z}}_2^{\prime}\right) $$ orientifold via a machine-learning approach.
Keiya Ishiguro, Satsuki Nishimura, Hajime Otsuka   +2 more
doaj   +1 more source

String Resonances at Hadron Colliders

, 2014
[Abridged] We consider extensions of the standard model based on open strings ending on D-branes. Assuming that the fundamental string mass scale M_s is in the TeV range and that the theory is weakly coupled, we discuss possible signals of string physics
Goldberg, Haim, Dai, De-Chang, Lust, Dieter, Anchordoqui, Luis A., Stojkovic, Dejan, Antoniadis, Ignatios, Feng, Wan-Zhe, Huang, Xing, Taylor, Tomasz R.   +8 more
core   +1 more source