Results 51 to 60 of about 179 (141)

Cusps on cosmic superstrings with junctions

open access: yes, 2008
The existence of cusps on non-periodic strings ending on D-branes is demonstrated and the conditions for which such cusps are generic are derived. The dynamics of F-strings, D-strings and FD-string junctions are investigated. It is shown that pairs of FD-
Sakellariadou, Mairi; id_orcid   +3 more
core   +1 more source

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

Higgs and superparticle mass predictions from the landscape

open access: yesJournal of High Energy Physics, 2018
Predictions for the scale of SUSY breaking from the string landscape go back at least a decade to the work of Denef and Douglas on the statistics of flux vacua.
Howard Baer   +3 more
doaj   +1 more source

The enhancon mechanism in string theory [PDF]

open access: yes, 2002
The enhancon mechanism is a specific phenomenon in string theory which resolves a certain naked spacetime singularity arising in the supergravity description related to N = 2 supersymmetric pure gauge theory.
Järv, Laur
core  

GUT and standard-like models in intersecting D-brane worlds [PDF]

open access: yes, 2006
The main goal of string phenomenology is to find a convincing connection be- tween realistic particle physics and string theory. An extended object called D-brane in string theory is shown as a very powerful tool to resolve phenomenology problems.
Chen, Ching-Ming
core   +1 more source

Inclusive production through AdS/CFT

open access: yesJournal of High Energy Physics, 2017
It has been shown that AdS/CFT calculations can reproduce certain exclusive 2→2 cross sections in QCD at high energy, both for near-forward and for fixed-angle scattering.
Richard Nally   +2 more
doaj   +1 more source

Continuum-mediated self-interacting dark matter

open access: yesJournal of High Energy Physics, 2021
Dark matter may self-interact through a continuum of low-mass states. This happens if dark matter couples to a strongly-coupled nearly-conformal hidden sector.
Ian Chaffey   +2 more
doaj   +1 more source

Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry, and Complex Multiplication

open access: yesFortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi   +2 more
wiley   +1 more source

High-energy collisions of particles, strings, and branes

open access: yes, 2015
This chapter summarizes some 25 years of work on the transplanckian-energy collisions of particles, strings, and branes, seen as a theoretical laboratory for understanding how gravity and quantum mechanics can be consistently combined in string theory ...
Veneziano, Gabriele, Gabriele Veneziano
core   +1 more source

Categorisation and detection of dark matter candidates from string/M-theory hidden sectors

open access: yesJournal of High Energy Physics, 2018
We study well-motivated dark matter candidates arising from weakly-coupled hidden sectors in compactified string/M-theory. Imposing generic top-down constraints greatly restricts allowed candidates.
Bobby S. Acharya   +4 more
doaj   +1 more source

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