Results 81 to 90 of about 4,774 (143)

Holographic Hadrons in a Confining Finite Density Medium

open access: yes, 2009
We study a sector of the hadron spectrum in the presence of finite baryon density. We use a non-supersymmetric gravity dual to a confining guage theory which exhibits a running dilaton.
A Brandhuber   +48 more
core   +2 more sources

Supersymmetry breaking, open strings and M-theory [PDF]

open access: yes, 1998
We study supersymmetry breaking by Scherk-Schwarz compactifications in type I string theory. While in the gravitational sector all mass splittings are proportional to a (large) compactification radius, supersymmetry remains unbroken for the massless ...
Antoniadis, I., Dudas, E., Sagnotti, A.
core   +2 more sources

De Sitter cosmology on an expanding bubble

open access: yesJournal of High Energy Physics, 2019
Constructing an explicit compactification yielding a metastable de Sitter (dS) vacuum in a UV consistent string theory is an incredibly difficult open problem.
Souvik Banerjee   +4 more
doaj   +1 more source

Jumping Through Loops: On Soft Terms from Large Volume Compactifications

open access: yes, 2007
We subject the phenomenologically successful large volume scenario of hep-th/0502058 to a first consistency check in string theory. In particular, we consider whether the expansion of the string effective action is consistent in the presence of D-branes ...
Berg, Marcus   +2 more
core   +3 more sources

Oscillons from string moduli

open access: yesJournal of High Energy Physics, 2018
A generic feature of string compactifications is the presence of many scalar fields, called moduli. Moduli are usually displaced from their post-inflationary minimum during inflation.
Stefan Antusch   +5 more
doaj   +1 more source

Particle Physics Implications of F-theory

open access: yes, 2010
We review recent progress in realizing Grand Unified Theories (GUTs) in a strongly coupled formulation of type IIB string theory known as F-theory. Our main emphasis is on the expected low-energy phenomenology of a minimal class of F-theory GUTs.
Heckman, Jonathan J.
core   +1 more source

Magnetic monopoles and free fractionally charged states at accelerators and in cosmic rays

open access: yesJournal of High Energy Physics, 2017
Unified theories of strong, weak and electromagnetic interactions which have electric charge quantization predict the existence of topologically stable magnetic monopoles.
Thomas W. Kephart   +2 more
doaj   +1 more source

Resource Letter NSST-1: The Nature and Status of String Theory

open access: yes, 2004
This Resource Letter provides a guide to some of the the introductory and review literature in string theory. It is in no way complete, though it is intended to be of use to students at several levels. Owing to the nature of the subject, even much of the
Marolf, Donald
core   +1 more source

Fundamental matter, meson spectroscopy and non-critical string/gauge duality

open access: yes, 2005
We discuss the incorporation of quarks in the fundamental representation of the color group into the non-critical string/gauge duality. We focus on confining theories and address this question using two different approaches: (i) by introducing flavor ...
A. Armoni   +42 more
core   +1 more source

Catalytic creation of baby bubble universe with small positive cosmological constant

open access: yesJournal of High Energy Physics, 2019
We investigate the decay of metastable de Sitter, Minkowski and anti-de Sitter vacua catalyzed by a black hole and a cloud of strings. We apply the method to the creation of the four dimensional bubble universe in the five dimensional anti-de Sitter ...
Issei Koga, Yutaka Ookouchi
doaj   +1 more source

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