Results 91 to 100 of about 104,649 (206)

Enhanced neutrino polarizability

Journal of High Energy Physics, 2023
We point out that neutrinos can have enhanced couplings to photons, if light (pseudo)scalar mediators are present, resulting in a potentially measurable neutrino polarizability.
S. Bansal, G. Paz, A. A. Petrov, M. Tammaro, J. Zupan   +4 more
doaj   +1 more source

Energetic Compact Strokes as the Major Source of Downward Terrestrial Gamma‐Ray Flashes in Winter Thunderstorms

Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract Terrestrial gamma‐ray flashes (TGFs) are short bursts of intense gamma radiation associated with lightning discharges. Although thousands of TGFs have been observed from space, TGFs detected at ground level, known as downward TGFs, are still very limited, and their relationship with lightning discharge processes remains elusive. Here we report
Ting Wu, David M. Smith, Yuuki Wada, Kazuhiro Nakazawa, Manari Oguchi, Masashi Kamogawa, Tomoyuki Suzuki, Qingliu Yang, Daohong Wang   +8 more
wiley   +1 more source

A Left-Right Symmetric Model for Neutrino Masses, Baryon Asymmetry and Dark Matter

, 2010
In the left-right symmetric models without bi-doublet Higgs scalars, the standard model fermions can obtain masses by integrating out heavy charged singlet fermions.
Gu, Pei-Hong
core   +1 more source

How broad is a neutrino?

Journal of High Energy Physics, 2023
Canonical neutrino oscillations arise due to the propagation of three mass eigenstates from production to detection. We aspire to capture, in one simple framework, a broad range of new physics effects on neutrino propagation beyond this canonical picture
Hannah Banks, Kevin J. Kelly, Matthew McCullough   +2 more
doaj   +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

Clarity through the neutrino fog: constraining new forces in dark matter detectors

Journal of High Energy Physics
The PandaX-4T and XENONnT experiments present indications of Coherent Elastic Neutrino Nucleus Scattering (CEνNS) from 8B solar neutrinos at 2.6σ and 2.7σ, respectively.
Pablo Blanco-Mas, Pilar Coloma, Gonzalo Herrera, Patrick Huber, Joachim Kopp, Ian M. Shoemaker, Zahra Tabrizi   +6 more
doaj   +1 more source

Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley   +1 more source

Visible GeV ALP from TeV Vector‐Like Leptons

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi, Marta Fuentes Zamoro, Luca Merlo   +2 more
wiley   +1 more source

Constraints on neutrino and dark radiation interactions using cosmological observations

, 2012
Observations of the cosmic microwave background (CMB) and large-scale structure (LSS) provide a unique opportunity to explore the fundamental properties of the constituents that compose the cosmic dark radiation background (CDRB), of which the three ...
Das, Sudeep, Smith, Tristan L., Zahn, Oliver   +2 more
core   +1 more source

Probing generalized neutrino interactions with the DUNE Near Detector

Journal of High Energy Physics, 2023
We explore the prospects of constraining general non standard interactions involving light mediators through elastic neutrino-electron scattering events at the DUNE Near Detector (ND).
P. Melas, D. K. Papoulias, N. Saoulidou
doaj   +1 more source