Results 31 to 40 of about 19,776 (118)

Dark Dimension With (Little) Strings Attached

Fortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

Cosmology in Mirror Twin Higgs and Neutrino Masses

, 2016
We explore a simple solution to the cosmological challenges of the original Mirror Twin Higgs (MTH) model that leads to interesting implications for experiment.
Chacko, Zackaria, Craig, Nathaniel, Fox, Patrick J., Harnik, Roni   +3 more
core   +1 more source

Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover

Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Over the past decade, the Tunable Laser Spectrometer (TLS) on NASA's Curiosity rover has reported several detections of methane on Mars, attracting attention due to the potential astrobiological implications of its presence. Here, we re‐analyze published TLS data, identifying issues in data robustness and reduction.
Sébastien Viscardy, David C. Catling, Kevin Zahnle   +2 more
wiley   +1 more source

We must know. We will know

, 2010
The after-dinner talk has by now become a tradition of this Conference series on Quark Confinement and the Hadron Spectrum. On this occasion, I have tried to combine a free-style and (hopefully) amusing presentation with deep questions of physics ...
Sanchis-Lozano, Miguel-Angel
core   +1 more source

Impact crater lake evolution and concomitant hydrothermal mineralization recorded by the Wörnitzostheim drill core at the Ries impact structure, Germany

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 795-822, April 2025.
Abstract Impact‐generated hydrothermal systems and postimpact crater lake systems are well‐documented geological phenomena; however, evidence of hydrothermal venting into impact crater lake systems has rarely been reported. We investigated the well‐preserved contact between hydrothermally altered impact melt‐bearing breccia (outer/surficial suevite ...
Matthew J. O. Svensson, Gordon R. Osinski, Fred J. Longstaffe, Timothy A. Goudge, Haley M. Sapers   +4 more
wiley   +1 more source

Physics Beyond the Standard Model

, 2009
I present a brief overview of some exciting possibilities for physics Beyond the Standard Model. I include short discussions of neutrino physics, the strong CP problem and axions, GUTs, large and warped extra dimensions, Little Higgs models and ...
Howard Baer, Marvin L. Marshak
core   +1 more source

Microfaults: Abundant shear deformation and frictional melting in chondrites

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 858-868, April 2025.
Abstract The majority of ordinary chondrite (OC) meteorites record some amount of textural evidence for impact‐induced deformation. Melt veins in some shocked samples have been compared to terrestrial impact‐related pseudotachylites, which form by frictional melting of host rock.
Craig R. Walton, Mahesh Anand, Maria Schönbächler   +2 more
wiley   +1 more source

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Thinking with Amazonian Indigenous Peoples to expand ideas on domestication

People and Nature, Volume 7, Issue 3, Page 560-574, March 2025.
Abstract Indigenous knowledges are being increasingly recognized as fundamental for environmental governance, ecosystem management and biodiversity conservation. However, they tend to be recognized by Western science only when they converge with Western scientific knowledge, while ontological differences are generally treated as irrelevant or ...
Mariana Franco Cassino, Guilherme Henriques Soares, Gilton Mendes dos Santos, Jonilda Hauwer Gouveia, João Paulo Lima Barreto, Dagoberto Lima Azevedo, Gabriel Sodré Maia, Juliana Lins, Clarinda Maria Ramos, Myrtle Pearl Shock, Marco Madella, Charles Roland Clement   +11 more
wiley   +1 more source

Scalar-tensor cosmology at the general relativity limit: Jordan vs Einstein frame

, 2008
We consider the correspondence between the Jordan frame and the Einstein frame descriptions of scalar-tensor theory of gravitation. We argue that since the redefinition of the scalar field is not differentiable at the limit of general relativity the ...
C. M. Will, Laur Järv, M. Fierz, Margus Saal, P. Jordan, Piret Kuusk, S. Weinberg, V. Faraoni, V. Faraoni, Y. Fujii   +9 more
core   +1 more source