Results 31 to 40 of about 8,027 (168)

The emergence proposal and the emergent string

Journal of High Energy Physics, 2023
We explore the Emergence Proposal for the moduli metric and the gauge couplings in a concrete model with 7 saxionic and 7 axionic moduli fields, namely the compactification of the type IIA superstring on a 6-dimensional toroidal orbifold.
Ralph Blumenhagen, Aleksandar Gligovic, Antonia Paraskevopoulou   +2 more
doaj   +1 more source

String Universality [PDF]

, 2000
If there is a single underlying "theory of everything" which in some limits of its "moduli space" reduces to the five weakly coupled string theories in 10D, and 11D SUGRA, then it is possible that all six of them have some common domain of validity and ...
A. Brignole, A. Lerda, B. de Carlos, B. de Carlos, E. Cremmer, E. Cremmer, E. Witten, E. Witten, G. Aldazabal, G. Huey, H.P. Nilles, I. Antoniadis, I. Antoniadis, J. Polchinski, J.A. Casas, J.A. Harvey, J.D. Lykken, J.P. Derendinger, K. Choi, L. Randall, L. Randall, M. Dine, M. Dine, M. Dine, M. Dine, N.V. Krasnikov, P. Horava, P. Horava, R. Brustein, R. Brustein, R. Rohm, S. P. de Alwis, S. Weinberg, T. Banks, T. Banks, T. Banks, T. Banks, T. Barreiro, T. Barreiro, T.R. Taylor, V. Kaplunovsky, V.S. Kaplunovsky   +41 more
core   +3 more sources

Control Issues of KKLT

Fortschritte der Physik, Volume 68, Issue 11-12, December 2020., 2020
Abstract We analyze to which extent the KKLT proposal for the construction of de Sitter vacua in string theory is quantitatively controlled. Our focus is on the quality of the 10d supergravity approximation. As our main finding, we uncover and quantify an issue which one may want to call the “singular‐bulk problem”.
Xin Gao, Arthur Hebecker, Daniel Junghans   +2 more
wiley   +1 more source

A Comprehensive Survey of Brane Tilings [PDF]

, 1988
An infinite class of $4d$ $\mathcal{N}=1$ gauge theories can be engineered on the worldvolume of D3-branes probing toric Calabi-Yau 3-folds. This kind of setup has multiple applications, ranging from the gauge/gravity correspondence to local model ...
Allen J.R., B. P. Miller, Balzer R.M., Curtis R., Database Operating Systems Notes, Horwitz S., Jong-Deok Choi, Kennedy K., Miller B.P., Snodgrass R.   +9 more
core   +2 more sources

UV Shadows in EFTs: Accidental Symmetries, Robustness and No‐Scale Supergravity

Fortschritte der Physik, Volume 68, Issue 10, October 2020., 2020
Abstract We argue that accidental approximate scaling symmetries are robust predictions of weakly coupled string vacua, and show that their interplay with supersymmetry and other (generalised) internal symmetries underlies the ubiquitous appearance of no‐scale supergravities in low‐energy 4D EFTs.
C. P. Burgess, M. Cicoli, D. Ciupke, S. Krippendorf, F. Quevedo   +4 more
wiley   +1 more source

Predicting the Orbifold Origin of the MSSM

Fortschritte der Physik, Volume 68, Issue 5, May 2020., 2020
MSSM‐like string models from the compactification of the heterotic string on toroidal orbifolds (of the kind T6/P) have distinct phenomenological properties, like the spectrum of vector‐like exotics, the scale of supersymmetry breaking, and the existence of non‐Abelian flavor symmetries.
Erik Parr, Patrick K.S. Vaudrevange, Martin Wimmer   +2 more
wiley   +1 more source

The Nelson‐Seiberg Theorem Generalized with Nonpolynomial Superpotentials

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
The Nelson‐Seiberg theorem relates R‐symmetries to F‐term supersymmetry breaking and provides a guiding rule for new physics model building beyond the Standard Model. A revision of the theorem gives a necessary and sufficient condition to supersymmetry breaking in models with polynomial superpotentials.
Zhengyi Li, Zheng Sun, Antonio J. Accioly   +2 more
wiley   +1 more source

The Minimal Quiver Standard Model [PDF]

, 2006
This paper discusses the minimal quiver gauge theory embedding of the standard model that could arise from brane world type string theory constructions. It is based on the low energy effective field theory of D-branes in the perturbative regime.
David Berenstein, L. E. Ibanez, Samuel Pinansky   +2 more
core   +2 more sources

On BPS World Volume, RR Couplings, and Their α′ Corrections in Type IIB

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
We compute the asymmetric and symmetric correlation functions of a four‐point amplitude of a gauge field, a scalar field, and a closed string Ramond‐Ramond (RR) for different nonvanishing BPS branes. All world volume, the Taylor and pull‐back couplings, and their all‐order α′ corrections have also been explored.
Ehsan Hatefi, Torsten Asselmeyer-Maluga
wiley   +1 more source

Conditions for Vacuum Instability in Holographic Theories with Dilaton Field

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
We investigate the vacuum instability in the presence of dilaton field in a holographic setup. Although the dilaton is a bulk field, it leads to the vacuum instability on the boundary. We show that the whole process crucially depends on the probe brane position and as well on the radial coordinate so that the effects of dilaton scale parameter in ...
Sara Tahery, Sreeraj Nair, Pengming Zhang, Torsten Asselmeyer-Maluga   +3 more
wiley   +1 more source