Results 31 to 40 of about 298 (147)
Refractive neutrino masses in the solar DM halo: can the dark-LMA solution be revived?
Journal of High Energy PhysicsNeutrinos can acquire “refractive masses” as a consequence of their interactions with ultralight dark matter (DM). We explore a model with two additional sterile neutrinos and an ultralight scalar field which acts as DM and interacts with all five ...
Susobhan Chattopadhyay, Amol Dighe
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G-modes and the solar neutrino problem [PDF]
The Astrophysical Journal, 1993 We show that low-order g-modes with large enough amplitudes to affect significantly the solar neutrino fluxes would produce surface velocities that are $10^4$ times larger than the observed upper limits and hence are ruled out by existing data. We also demonstrate that any large-amplitude, short-period oscillations that grow on a Kelvin-Helmholtz time ...
Bahcall, John N., Kumar, Pawan
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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
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UniverseLaboratory magnetoplasmas can become an intriguing experimental environment for fundamental studies relevant to nuclear astrophysics processes. Theoretical predictions indicate that the ionization state of isotopes within the plasma can significantly ...
Eugenia Naselli +7 more
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Casimir energy stabilization of Standard Model landscape in dark dimension
Journal of High Energy PhysicsIn this paper we present a realization of the dark dimension. We consider the 5D Standard Model coupling to gravity with one dimension compactified on an orbifold, which is seen as the dark dimension of size R.
Chuanxin Cui, Sirui Ning
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Recent Developments in Halide Perovskite Nanocrystals for Indirect X‐ray Detection
Advanced Materials Technologies, Volume 9, Issue 20, October 21, 2024.Perovskite nanocrystals act as scintillators under X‐ray illumination with different conversion yield, stability, or decay times and outperform commercial materials, depending on their composition, host matrix, and luminescence process. Besides the lead halide perovskites, there are lead‐free alternatives providing self‐trapped exciton emission ...
Olexiy Balitskii +2 more
wiley +1 more source
Abstract “...some say the solar neutrino problem is still with us. Others say there never was a problem. My purpose is to present this ambiguous situation to you in such a way that you can make your own judgement.” (W.A. FOWLER 1977). It is not the aim of the present chapter to add one more suggestion to the long list of attempts for ...
Arak M. Mathai, Hans J. Haubold
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Responsive Materials, Volume 2, Issue 3, August 2024.Zinc sulfide is a smart luminescent material with exceptionally outstanding mechanoluminescence properties. After over a century of research, it is now widely used in wearable devices, auxiliary lighting, stress sensing, anti‐counterfeiting, and other fields.
Zefeng Huang +14 more
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A Broad Set of Solar and Cosmochemical Data Indicates High C-N-O Abundances for the Solar System
The Astrophysical JournalWe examine the role of refractory organics as a major C carrier in the outer protosolar nebula and its implications for the compositions of large Kuiper Belt objects (KBOs) and CI chondrites.
Ngoc Truong +2 more
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