Results 21 to 30 of about 644,825 (192)
Enhanced rates for diphoton resonances in the MSSM
We propose a simple mechanism for copiously producing heavy Higgs bosons with enhanced decay rates to two photons at the LHC, within the context of the Minimal Supersymmetric extension of the Standard Model (MSSM).
Abdelhak Djouadi, Apostolos Pilaftsis
doaj +1 more source
On TCS G 2 manifolds and 4D emergent strings
In this note, we study the Swampland Distance Conjecture in TCS G 2 manifold compactifications of M-theory. In particular, we are interested in testing a refined version — the Emergent String Conjecture, in settings with 4d N = 1 supersymmetry.
Fengjun Xu
doaj +1 more source
On the Complementarity of F-theory, Orientifolds, and Heterotic Strings [PDF]
We study F-theory duals of six dimensional heterotic vacua in extreme regions of moduli space where the heterotic string is very strongly coupled. We demonstrate how to use orientifold limits of these F-theory duals to regain a perturbative string description. As an example, we reproduce the spectrum of a $T^4/\ZZ_{4}$ orientifold as an F-theory vacuum
arxiv +1 more source
We study the interpretation of O7+-planes in F-theory, mainly in the context of the six-dimensional models. In particular, we study how to assign gauge algebras and matter content to seven-branes and their intersections, and the implication of anomaly ...
Lakshya Bhardwaj+3 more
doaj +1 more source
N=1 Heterotic/F-Theory Duality [PDF]
We review aspects of N=1 duality between the heterotic string and F-theory. After a description of string duality intended for the non-specialist the framework and the constraints for heterotic/F-theory compactifications are presented. The computations of the necessary Calabi-Yau manifold and vector bundle data, involving characteristic classes and ...
arxiv +1 more source
GV-spectroscopy for F-theory on genus-one fibrations
We present a novel technique to obtain base independent expressions for the matter loci of fibrations of complete intersection Calabi-Yau onefolds in toric ambient spaces.
Paul-Konstantin Oehlmann+1 more
doaj +1 more source
F-theory Description of 3-String Junction [PDF]
The geometrical description of BPS 3-string junction in the F-theory background is given by lifting a string junction in IIB into F-theory and constructing a holomorphic curve in K3 with respect to a special complex structure of K3. The holomorphic curve is fibration of 1-cycles of the elliptic fiber over the geodesic string junction.
arxiv +1 more source
A Sinicized World Religion?: Chinese Christianity at the Contemporary Moment of Globalization
This essay explores the rise of Protestant Christianity at the contemporary stage of China’s globalization as a unique social and cultural phenomenon.
Nanlai Cao
doaj +1 more source
Type IIB Flux Vacua from M-theory via F-theory [PDF]
We study in detail some aspects of duality between type IIB and M-theory. We focus on the duality between type IIB string theory on K3 x T^2/Z_2 orientifold and M-theory on K3 x K3, in the F-theory limit. We give the explicit map between the fields and in particular between the moduli of compactification, studying their behavior under the F-theory ...
arxiv +1 more source
Horizon thermodynamics in f(R) theory
We investigate whether the new horizon first law proposed recently still work in f(R) theory. We identify the entropy and the energy of black hole as quantities proportional to the corresponding value of integration, supported by the fact that the new ...
Yaoguang Zheng, Rongjia Yang
doaj +1 more source