Richard Hill

Jul 12, 2024 | link.aps.org | Richard Hill |Ryan Plestid

The Fermi function F(Z,E) accounts for QED corrections to beta decays that are enhanced at either small electron velocity β or large nuclear charge Z. For precision applications, the Fermi function must be combined with other radiative corrections and with scale- and scheme-dependent hadronic matrix elements. We formulate the Fermi function as a field theory object and present a new factorization formula for QED radiative corrections to beta decays.

Jun 26, 2024 | link.aps.org | Kaushik Borah |Richard Hill |Ryan Plestid

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 Z2α3 corrects a previous result in the literature. An all-orders symmetry is shown to relate the anomalous dimensions at leading and subleading powers of Z at a given order of α. The first unknown coefficient for the anomalous dimension now appears at O(Z2α4).

Apr 24, 2024 | lexology.com | Ellis Baker |Jonathan Brierley |Joanne Emerson-Taqi |Aaron Potter |Richard Hill |David Strickland | +5 more

Spring 2024Constructing the low-carbon economyAs the world responds to a global shift toward a low-carbon economy, there's unprecedented focus on the legal intricacies of major construction projectsContentsForewordPage 1Risk allocation and mitigation in energy projectsPage 2Refurbishing and retrofitting brownfield projects for a lowcarbon futurePage 6Building toward net-zeroPage 10Data centers: Can the demands for increased capacity and energy be met sustainably?

Apr 12, 2024 | columbian.com | Richard Hill

The tragedy of the attack on Israel on Oct. 7 defies all adjectives — cruel, horrific, barbaric, etc. — in attempts to describe the atrocities of Hamas. No civilized nation can condone these atrocities. Hamas has sworn to destroy Israel and does not discriminate between civilian and military targets in what they see as a holy war to liberate Palestine. Innocents be damned. We will have our revenge.

Mar 1, 2024 | link.aps.org | Richard Hill |Oleksandr Tomalak |Los Alamos |Roberto Petti

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 form factor and radius from antineutrino interactions on hydrogen that can be collected at the future Long-Baseline Neutrino Facility and study the sources of theoretical and experimental uncertainties.