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pro vyhledávání: '"Hill, Richard A."'
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
Autor:
Tomalak, Oleksandr, Borah, Kaushik, Hill, Richard J., McFarland, Kevin S., Ruterbories, Daniel
Publikováno v:
Phys. Rev. D 107 (2023) 093005
Inverse muon decay ($\nu_\mu e^- \to \nu_e \mu^-$) is a promising tool to constrain neutrino fluxes with energies $E_{\nu} \ge 10.9~\mathrm{GeV}$. Radiative corrections introduce percent-level distortions to energy spectra of outgoing muons and depen
Externí odkaz:
http://arxiv.org/abs/2211.15947
Autor:
Barroso, Vitor S., Geelmuyden, August, Fifer, Zack, Erne, Sebastian, Avgoustidis, Anastasios, Hill, Richard J. A., Weinfurtner, Silke
For the past two hundred years, parametric instabilities have been studied in various physical systems, such as fluids, mechanical devices and even inflationary cosmology. It was not until a few decades ago that this subharmonic unstable response aro
Externí odkaz:
http://arxiv.org/abs/2207.02199