Results 51 to 60 of about 179 (141)
Cusps on cosmic superstrings with junctions
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
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
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]
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]
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
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
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
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
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
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

