Zobrazeno 1 - 10
of 452
pro vyhledávání: '"Hill, Richard J"'
At leading order in weak and electromagnetic couplings, cross sections for (anti)neutrino-nucleon elastic scattering are determined by four nucleon form factors that depend on the momentum transfer $Q^2$. Including radiative corrections in the Standa
Externí odkaz:
http://arxiv.org/abs/2403.04687
Publikováno v:
Phys. Lett. B 854, 138718 (2024)
New physics contributions to the (anti)neutrino-nucleon elastic scattering process can be constrained by precision measurements, with controlled Standard Model uncertainties. In a large class of new physics models, interactions involving charged lept
Externí odkaz:
http://arxiv.org/abs/2402.14115
Publikováno v:
Phys. Rev. D 109, 113007 (2024)
The anomalous dimension for heavy-heavy-light effective theory operators describing nuclear beta decay is computed through three-loop order in the static limit. The result at order $Z^2\alpha^3$ corrects a previous result in the literature. An all-or
Externí odkaz:
http://arxiv.org/abs/2402.13307
Publikováno v:
Phys. Rev. D 109, 035025 (2024)
We investigate the ability of $\mu\rightarrow e$ facilities, Mu2e and COMET, to probe, or discover, new physics with their detector validation datasets. The validation of the detector response may be performed using a dedicated run with $\mu^+$, coll
Externí odkaz:
http://arxiv.org/abs/2310.00043
Autor:
Hill, Richard J., Plestid, Ryan
Publikováno v:
Phys. Rev. D 109, 056006 (2024)
In the limit of large nuclear charge, $Z\gg 1$, or small lepton velocity, $\beta \ll 1$, Coulomb corrections to nuclear beta decay and related processes are enhanced as $Z\alpha/\beta$ and become large or even non-perturbative (with $\alpha$ the QED
Externí odkaz:
http://arxiv.org/abs/2309.15929
Autor:
Hill, Richard J., Plestid, Ryan
Publikováno v:
Phys. Rev. Lett. 133, 021803 (2024)
The Fermi function $F(Z,E)$ accounts for QED corrections to beta decays that are enhanced at either small electron velocity $\beta$ or large nuclear charge $Z$. For precision applications, the Fermi function must be combined with other radiative corr
Externí odkaz:
http://arxiv.org/abs/2309.07343
Heavy WIMP (weakly-interacting-massive-particle) effective field theory is used to compute the WIMP-nucleon scattering rate for general heavy electroweak multiplets through order $m_W/M$, where $m_W$ and $M$ denote the electroweak and WIMP mass scale
Externí odkaz:
http://arxiv.org/abs/2309.02715
Publikováno v:
Phys. Rev. D 109 (2023), L051301
Precision measurements of antineutrino elastic scattering on hydrogen from future neutrino experiments offer a unique opportunity to access the low-energy structure of protons and neutrons. We discuss the determination of the nucleon axial-vector for
Externí odkaz:
http://arxiv.org/abs/2309.02509