Zobrazeno 1 - 10
of 631
pro vyhledávání: '"I. Antoniadis"'
Autor:
I. Antoniadis, F. Rondeau
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-13 (2022)
Abstract It has been recently shown that the discrepancy between the theoretical and experimental values of the anomalous magnetic moment of the muon can be fully accommodated by considering the contribution of few Kaluza–Klein (KK) states of the g
Externí odkaz:
https://doaj.org/article/edf84528d23442ae9f2e5781a2cd29dc
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 4, Pp 1-23 (2022)
Abstract In a recent paper, we identified a cosmological sector of a flipped SU(5) model derived in the free fermionic formulation of the heterotic superstring, containing the inflaton and the goldstino superfields with a superpotential leading to St
Externí odkaz:
https://doaj.org/article/a73318e576c740b69ec1c4084a882c27
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-16 (2021)
Abstract Gravitinos can inherit a non-relativistic dispersion relation while propagating in a background breaking both supersymmetry and Lorentz symmetry spontaneously. This is because the longitudinal mode velocity is controlled by the sound speed i
Externí odkaz:
https://doaj.org/article/0482feeccc6e45ea9d0dfa6681cf8d5f
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-51 (2021)
Abstract We consider the most general Kaluza-Klein (KK) compactification on S 1 /ℤ2 of a five dimensional (5D) graviton-dilaton system, with a non-vanishing dilaton background varying linearly along the fifth dimension. We show that this background
Externí odkaz:
https://doaj.org/article/8defdd6fb3854826b488d3c125bca2ee
Autor:
I. Antoniadis, F. Rondeau
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 4, Pp 1-14 (2020)
Abstract Recently, a new type of constant Fayet–Iliopoulos (FI) terms was introduced in $${\mathcal {N}}=1$$ N=1 supergravity, which do not require the gauging of the R-symmetry. We revisit and generalise these constructions, building a new class o
Externí odkaz:
https://doaj.org/article/9794361d50e148d3aa04ee0e33bf9a68
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-22 (2019)
Abstract We have proposed recently a framework for inflation driven by supersymmetry breaking with the inflaton being a superpartner of the goldstino, that avoids the main problems of supergravity inflation, allowing for: naturally small slow-roll pa
Externí odkaz:
https://doaj.org/article/148ee5416c34467fb0b00e2df0d7afb2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-8 (2018)
Abstract We propose a supersymmetrisation of the cosmological constant in ordinary $$N=1$$ N=1 supergravity that breaks supersymmetry spontaneously by a constant Fayet-Iliopoulos (FI) term associated to a U(1) symmetry. This term is a variation of a
Externí odkaz:
https://doaj.org/article/3825bb9342df418d8ec18dee7f19fb57
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-11 (2018)
Abstract We analyse the consequences of a new gauge invariant Fayet–Iliopoulos (FI) term proposed recently to a class of inflation models driven by supersymmetry breaking with the inflaton being the superpartner of the goldstino. We first show that
Externí odkaz:
https://doaj.org/article/cee8cd1b2054422c8e5caee9fed023f6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 11, Pp 1-16 (2017)
Abstract We explore the possibility that inflation is driven by supersymmetry breaking with the superpartner of the goldstino (sgoldstino) playing the role of the inflaton. Moreover, we impose an R-symmetry that allows one to satisfy easily the slow-
Externí odkaz:
https://doaj.org/article/4bc9cab9d06b498bb76531b25d2fcbd6
Autor:
I. Antoniadis
Publikováno v:
Odessa Astronomical Publications, Vol 28, Iss 2, Pp 105-112 (2016)
We discuss possible connections between several scales in particle physics and cosmology, such the the electroweak, inflation, dark energy and Planck scales. We then describe the phenomenology of a model of supersymmetry breaking in the presence of a
Externí odkaz:
https://doaj.org/article/77b1563f078342668a41e77489eb7910