Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Robert Wiley"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-33 (2024)
Abstract We consider the evolution of non-thermal dark matter perturbations in models which contain both Weakly Interacting Massive Particles (WIMPs) and axions. Using constraints from existing observations we examine the percentage of WIMPs and axio
Externí odkaz:
https://doaj.org/article/7b35c9a5edb642228352be610280ba40
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-40 (2023)
Abstract The supersymmetrized DFSZ axion model is especially compelling in that it contains 1. the SUSY solution to the gauge hierarchy problem, 2. the Peccei-Quinn (PQ) solution to the strong CP problem and 3. the Kim-Nilles solution to the SUSY μ
Externí odkaz:
https://doaj.org/article/f1f129739b4a485e946b73034aeb45cb
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-28 (2022)
Abstract We study the production of dark matter and dark radiation after reheating in string inflation models where the Calabi-Yau has a fibred structure and the visible sector lives on D3 branes. We show how the interplay between different physical
Externí odkaz:
https://doaj.org/article/e156374b81c3481186b298bbf3d20473
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-69 (2022)
Abstract Nowadays, the cosmological moduli problem (CMP) comes in three parts: 1. potential violation of Big-Bang nucleosynthesis (BBN) constraints from late decaying moduli fields, 2. the moduli-induced gravitino problem wherein gravitinos are overp
Externí odkaz:
https://doaj.org/article/17a4de9908e24c3ebcb2012bab7d28d4
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 11, Pp 1-16 (2019)
Abstract The value of the Higgs boson mass plus the lack of signal at LHC13 has led to a naturalness crisis for supersymmetric models. In contrast, rather general considerations of the string theory landscape imply a mild statistical draw towards lar
Externí odkaz:
https://doaj.org/article/ce0bcf98082b4776a9e719778a6ca9b5
We consider the evolution of non-thermal dark matter perturbations in models which contain both Weakly Interacting Massive Particles (WIMPs) and axions. Using constraints from existing observations we examine the percentage of WIMPs and axions that m
Externí odkaz:
http://arxiv.org/abs/2308.16242
The supersymmetrized DFSZ axion model is especially compelling in that it contains 1. the SUSY solution to the gauge hierarchy problem, 2. the Peccei-Quinn (PQ) solution to the strong CP problem and 3. the Kim-Nilles solution to the SUSY mu problem.
Externí odkaz:
http://arxiv.org/abs/2301.12546
We study the production of dark matter and dark radiation after reheating in string inflation models where the Calabi-Yau has a fibred structure and the visible sector lives on D3 branes. We show how the interplay between different physical constrain
Externí odkaz:
http://arxiv.org/abs/2208.01017
We examine the issue of dark radiation (DR) from string moduli decay into axion-like particles (ALPs). In KKLT-type models of moduli stabilization, the axionlike phases of moduli fields are expected to decouple whilst in LVS-type moduli stabilization
Externí odkaz:
http://arxiv.org/abs/2204.01130
The cosmological moduli problem (CMP) comes in three parts: 1. potential violation of BBN constraints from late decaying moduli fields, 2. the moduli-induced gravitino problem wherein gravitinos are overproduced and 3. the moduli-induced lightest SUS
Externí odkaz:
http://arxiv.org/abs/2201.06633