Results 1 to 10 of about 9,385 (139)

Proton decay in flux compactifications

Journal of High Energy Physics, 2019
We study proton decay in a six-dimensional orbifold GUT model with gauge group SO(10)×U(1) A . Magnetic U(1) A flux in the compact dimensions determines the multiplicity of quark-lepton generations, and it also breaks supersymmetry by giving universal ...
Wilfried Buchmuller, Ketan M. Patel
doaj   +4 more sources

Exceptional flux compactifications [PDF]

Journal of High Energy Physics, 2012
AbstractWe consider type II (non-)geometric flux backgrounds in the absence of brane sources, and construct their explicit embedding into maximal gaugedD= 4 supergravity. This enables one to investigate the critical points, mass spectra and gauge groups of such backgrounds.
Giuseppe Dibitetto, Adolfo Guarino, Diederik Roest   +2 more
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Nongeometric flux compactifications [PDF]

Journal of High Energy Physics, 2005
26 pages, JHEP3. v3: references, minor corrections, and clarifications added.
Shelton, Jessie, Taylor, Washington, Wecht, Brian   +2 more
openaire   +7 more sources

Lobotomy of flux compactifications [PDF]

Journal of High Energy Physics, 2014
We provide the dictionary between four-dimensional gauged supergravity and type II compactifications on $\mathbb{T}^6$ with metric and gauge fluxes in the absence of supersymmetry breaking sources, such as branes and orientifold planes. Secondly, we prove that there is a unique isotropic compactification allowing for critical points.
Dibitetto Giuseppe, Guarino Adolfo, Roest Diederik   +2 more
openaire   +9 more sources

Universal axion backreaction in flux compactifications [PDF]

Journal of High Energy Physics, 2021
We study the backreaction effect of a large axion field excursion on the saxion partner residing in the same N $$ \mathcal{N} $$ = 1 multiplet. Such configurations are relevant in attempts to realize axion monodromy inflation in string compactifications.
Thomas W. Grimm, Chongchuo Li
doaj   +5 more sources

Flux compactifications and naturalness [PDF]

Journal of High Energy Physics, 2018
Free massless scalars have a shift symmetry. This is usually broken by gauge and Yukawa interactions, such that quantum corrections induce a quadratically divergent mass term.
Wilfried Buchmuller, Markus Dierigl, Emilian Dudas   +2 more
doaj   +7 more sources

Lectures on nongeometric flux compactifications [PDF]

Classical and Quantum Gravity, 2007
These notes present a pedagogical review of nongeometric flux compactifications. We begin by reviewing well-known geometric flux compactifications in Type II string theory, and argue that one must include nongeometric "fluxes" in order to have a superpotential which is invariant under T-duality.
Acharya B S Douglas M R, Aldazabal G Camara P G Font A Ibanez L E, Ashok S, Banks T, Becker K, Becker M Dasgupta K, Blumenhagen R Kors B Lust D Stieberger S, Bouwknegt P Hannabuss K Mathai V, Brian Wecht, Brodzki J Mathai V Rosenberg J Szabo R J, Butti A, Camara P G Font A Ibanez L E, Cardoso G L, Catal-Ozer A, Cvetic M Liu T Schulz M B, D'Auria R, D'Auria R, Dabholkar A, Dabholkar A Hull C, Dasgupta K, de Carlos B Gurrieri S Lukas A Micu A, de Wit B Samtleben H Trigiante M, Denef F, Derendinger J P Petropoulos P M Prezas N, DeWolfe O, DeWolfe O Giryavets A Kachru S Taylor W, Douglas M R, Ellwood I, Ellwood I T, Flournoy A, Font A, Frey A R, Grana M, Grana M, Grana M, Grana M, Grana M, Grange P Schafer-Nameki S, Gray J, Gurrieri S, Hackett-Jones E Moutsopoulos G, Hellerman S, Hellerman S Walcher J, Hitchin N, Hull C M, Hull C M, Hull C M, Hull C M, Hull C M Reid-Edwards R A, Ihl M Robbins D Wrase T, Kachru S, Kachru S, Kaloper N, Kashani-Poor A K, Lawrence A Schulz M B Wecht B, Louis J, Louis J, Marchesano F Schulgin W, Mathai V Rosenberg J, Mathai V Rosenberg J M, Micu A, Minasian R, Palti E, Reid-Edwards R A, Scherk J, Schulz M B, Serone M, Shelton J, Shelton J, Trigiante M, Tripathy P K, Villadoro G, Villadoro G, Villadoro G Zwirner F, Wess J   +74 more
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Flavor mixings in flux compactifications [PDF]

Physical Review D, 2017
A multiplicity of quark-lepton families can naturally arise as zero-modes in flux compactifications. The flavour structure of quark and lepton mass matrices is then determined by the wave function profiles of the zero-modes. We consider a supersymmetric $SO(10)\times U(1)$ model in six dimensions compactified on the orbifold $T^2/{\mathbb Z_2}$ with ...
Buchmuller, Wilfried, Schweizer, Julian
openaire   +6 more sources

Comments on heterotic flux compactifications [PDF]

Journal of High Energy Physics, 2006
In heterotic flux compactification with supersymmetry, three different connections with torsion appear naturally, all in the form $ +a H$. Supersymmetry condition carries $a=-1$, the Dirac operator has $a=-1/3$, and higher order term in the effective action involves $a=1$. With a view toward the gauge sector, we explore the geometry with such torsions.
Kimura, Tetsuji, Yi, Piljin
openaire   +4 more sources

Maximal supergravity from IIB flux compactifications [PDF]

Physics Letters B, 2004
Using a recently proposed group-theoretical approach, we explore novel gaugings of maximal supergravity in four dimensions with gauge group embeddings that can be generated by fluxes of IIB string theory. The corresponding potentials are positive without stationary points.
B. DE WIT, H. SAMTLEBEN, TRIGIANTE, MARIO   +2 more
openaire   +7 more sources