Results 21 to 30 of about 1,397,052 (220)
New constraint on dark photon at T2K off-axis near detector
Journal of High Energy Physics, 2023 The T2K experiment is one of the most powerful long-baseline experiments to investigate neutrino oscillations. The off-axis near detector called ND280 is installed 280 m downstream from the neutrino production target to measure the neutrino energy ...
Takeshi Araki +5 more
doaj +1 more source
Terrestrial detection of hidden vectors produced by solar nuclear reactions
Journal of High Energy Physics, 2023 Solar nuclear reactions can occasionally produce sub-MeV elusive beyond the Standard Model particles that escape the solar interior without further interactions. This study focuses on massive spin-one particles.
Francesco D’Eramo +3 more
doaj +1 more source
Probing new light gauge bosons with gravitational-wave interferometers using an adapted semicoherent method [PDF]
Physical Review D, 2020 We adapt a method, originally developed for searches for quasi-monochromatic, quasi-infinite gravitational-wave signals, to directly detect new light gauge bosons with laser interferometers, which could be candidates for dark matter.
Andrew L. Miller +14 more
semanticscholar +1 more source
Leptophilic gauge bosons at lepton beam dump experiments
Journal of High Energy Physics, 2023 It has been recently known that we can use beams of future lepton colliders, the International Linear Collider (ILC), the Compact Linear Collider (CLIC), and the muon collider, for beam dump experiment if a shield and a detector are installed behind the ...
Takeo Moroi, Atsuya Niki
doaj +1 more source
Scalar dark matter interpretation of the DAMPE data with U(1) gauge interactions [PDF]
, 2017 Recently, the Dark Matter Particle Explorer (DAMPE) experiment released the new measurement of the total cosmic e(+) e(-) flux between 25 GeV and 4.6 TeV, which indicates a spectral softening at around 0.9 TeV and a tentative peak at around 1.4 TeV.
Junjie Cao +5 more
semanticscholar +1 more source
Dark radiation constraints on portal interactions with hidden sectors [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We update dark radiation constraints on millicharged particle (MCP) and gauged baryon-number-minus-lepton-number (B-L) extensions of the Standard Model (SM).
Peter Adshead +2 more
semanticscholar +1 more source
Flatland: abelian extensions of the Standard Model with semi-simple completions
Journal of High Energy Physics, 2022 We parametrise the space of all possible flavour non-universal u $$ \mathfrak{u} $$ (1) X extensions of the Standard Model that embed inside anomaly-free semi-simple gauge theories, including up to three right-handed neutrinos.
Joe Davighi, Joseph Tooby-Smith
doaj +1 more source
Constraining secret gauge interactions of neutrinos by meson decays [PDF]
, 2017 Secret coupling of neutrinos to a new light vector boson, $Z'$, with a mass smaller than 100 MeV is motivated within a myriad of scenarios which are designed to explain various anomalies in particle physics and cosmology. Due to longitudinal component of
P. Bakhti, Y. Farzan
semanticscholar +1 more source
Non-Standard neutrino interactions and neutral gauge bosons [PDF]
SciPost Physics, 2018 We investigate Non-Standard Neutrino Interactions (NSI) arising from a flavor-sensitive Z'Z′ boson of a new U(1)'U(1)′ symmetry. We compare the limits from neutrino oscillations, coherent elastic neutrino–nucleus scattering, and Z'Z′ searches at ...
J. Heeck +3 more
semanticscholar +1 more source
Journal of High Energy Physics, 2022 We study the sensitivity of the High-Luminosity LHC to a light baryonic dark photon B, primarily coupled to quarks, as a constituent of the proton. This is achieved by allowing for a dark photon parton distribution function (PDF) in the PDF evolution ...
Matthew McCullough +2 more
doaj +1 more source