Results 71 to 80 of about 21,268 (194)
Meteoritics &Planetary Science, Volume 60, Issue 9, Page 2076-2098, September 2025.Abstract Dating rocks with a 2σ precision of 200 Ma is required to understand the history of Martian habitability and volcanic activity since ~4000 Ma. In situ K‐Ar dating using a spot‐by‐spot laser ablation technique has been developed for isochron dating on Mars.
Hikaru Hyuga +4 more
wiley +1 more source
Journal of High Energy Physics, 2020 In hidden sector models, dark matter does not directly couple to the particle content of the Standard Model, strongly suppressing rates at direct detection experiments, while still allowing for large signals from annihilation.
Dan Hooper +4 more
doaj +1 more source
Consequences of f(R)-theories of gravity on gravitational leptogenesis
, 2012 f(R)-theories of gravity are reviewed in the framework of the matter-antimatter asymmetry in the Universe. The asymmetry is generated by the gravitational coupling of heavy (Majorana) neutrinos with the Ricci scalar curvature. In order that the mechanism
Lambiase, G., Mohanty, S., Pizza, L.
core +1 more source
Stringy Effects During Inflation and Reheating [PDF]
, 2005 We consider inflationary cosmology in the context of string compactifications with multiple throats. In scenarios where the warping differs significantly between throats, string and Kaluza-Klein physics can generate potentially observable corrections to ...
A. Vilenkin +6 more
core +3 more sources
Two Micron‐Size Dark Dimensions
Fortschritte der Physik, Volume 73, Issue 8, August 2025.Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui +2 more
wiley +1 more source
Journal of High Energy Physics, 2017 Motivated by the possibility of enhancing dark matter (DM) self-scattering cross-section σ self , we have revisited the issue of DM annihilation through a Breit-Wigner resonance.
M. Duch, B. Grzadkowski
doaj +1 more source
Trans‐Conceptual Sampling: Bayesian Inference With Competing Assumptions
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract Trans‐dimensional Bayesian sampling has been applied to subsurface imaging and other inference problems across the Earth Sciences. A particular style of Markov chain Monte Carlo (McMC) method, known as reversible‐jump has been used almost universally in such studies.
Malcolm Sambridge +2 more
wiley +1 more source
Strong dark matter self-interaction from a stable scalar mediator
Journal of High Energy Physics, 2020 In face of the small-scale structure problems of the collisionless cold dark matter (DM) paradigm, a popular remedy is to introduce a strong DM self-interaction which can be generated nonperturbatively by a MeV-scale light mediator.
Mateusz Duch +2 more
doaj +1 more source
Unveiling the Dynamics of the Universe
, 2016 We explore the dynamics and evolution of the Universe at early and late times, focusing on both dark energy and extended gravity models and their astrophysical and cosmological consequences.
Avelino, Pedro +12 more
core +2 more sources
Nambu-Goldstone Affleck-Dine baryogenesis
Journal of High Energy Physics, 2019 The Affleck-Dine mechanism creates the baryon asymmetry of the universe from an angular motion of a complex scalar field. The mechanism is efficient and allows for a low reheating temperature of the universe if the scalar field has a flat potential along
Keisuke Harigaya
doaj +1 more source