Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Emilian Dudas"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-36 (2024)
Abstract It is well-known that the number of particles produced in cosmology, commonly defined in the literature from the Fock space of the instantaneous hamiltonian of the canonically normalized fields, is ambiguous. On the other hand, the energy co
Externí odkaz:
https://doaj.org/article/0d5f26620ad34d4395fbaf9a9119e233
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-44 (2024)
Abstract We explore possible extensions of the Weak Gravity Conjecture (WGC) to scalar field theories. To avoid charged black hole remnants, the WGC requires the existence of a particle with a mass m ≤ gqM P , with charge q and U(1) gauge coupling
Externí odkaz:
https://doaj.org/article/386233e0d3e1411a9bf2242c26c19bab
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-51 (2024)
Abstract We construct new string vacua featuring Brane Supersymmetry Breaking, based on T 4/ℤ N orientifolds with O5+ planes and D 5 ¯ $$ \overline{\textrm{D}5} $$ branes. Differently from the original construction, in these vacua the cancellation
Externí odkaz:
https://doaj.org/article/ff2c20b7b30b42ee9cb846e40360f254
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-38 (2022)
Abstract It is well-known that gravitino propagation in standard supergravities is free of any causality problems. However, two issues related to gravitino propagation were recently uncovered in specific supergravities with nonlinear supersymmetry. O
Externí odkaz:
https://doaj.org/article/73fdf6e3b3e7427cae94ddf3813d1ac7
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-35 (2021)
Abstract Starting from a peculiar orientifold projection proposed long ago by Angelantonj and Cardella, we elaborate on a novel perturbative scenario that involves only D-branes, together with the two types of orientifold planes O ± and anti-orienti
Externí odkaz:
https://doaj.org/article/26a73520ecda4d8abe78c9da48a67939
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-38 (2021)
Abstract We consider a 5D extension of the DFSZ axion model that addresses both the axion quality and fermion mass hierarchy problems, and predicts flavour-dependent, off-diagonal axion-fermion couplings. The axion is part of a 5D complex scalar fiel
Externí odkaz:
https://doaj.org/article/98254c5ea9fa44109c9c63becc41d4f8
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-29 (2021)
Abstract Intersecting D-brane models and their T-dual magnetic compactifications provide an attractive framework for particle physics, allowing for chiral fermions and supersymmetry breaking. Generically, magnetic compactifications have tachyons that
Externí odkaz:
https://doaj.org/article/df73f7390d064ae899b1259f1043506e
Autor:
Emilian Dudas, Severin Lüst
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-24 (2021)
Abstract It was recently shown that in warped compactifications based on a Klebanov-Strassler throat there is a light complex structure field, governing the size of the throat and the redshift at its tip. We show that after uplift of the cosmological
Externí odkaz:
https://doaj.org/article/7fb3f5e065dd49218499870817dda15c
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-48 (2019)
Abstract Intersecting D-brane models and their T-dual magnetic compactifications yield attractive models of particle physics where magnetic flux plays a twofold role, being the source of fermion chirality as well as supersymmetry breaking. A potentia
Externí odkaz:
https://doaj.org/article/88e7a3d237b34aa2a7a01c4f6034fbae
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-44 (2019)
Abstract We construct type I string models with supersymmetry broken by compactifi- cation that are non-tachyonic and have exponentially small effective potential at one-loop. All open string moduli can be stabilized, while the closed string moduli r
Externí odkaz:
https://doaj.org/article/8a672600774645e2818b9ef2a61fb1fb