Results 61 to 70 of about 1,867 (174)

Engineering Asymmetry: How Chirality Boosts Catalysis, Spin Selectivity, and Light–Matter Interactions

open access: yesChemPhotoChem, Volume 10, Issue 4, April 2026.
This review connects chiroptical spectroscopy, asymmetric catalysis, and spintronics, revealing how chirality influences the interactions of matter with light, charge, and spin. Across diverse systems, remarkable chiroptical effects emerge, showing among others that high efficiencies can arise without absolute enantiopurity, and that functionality is ...
Charitini Panagiotopoulou   +5 more
wiley   +1 more source

Precision tests of QED in strong fields: experiments on hydrogen- and helium-like uranium [PDF]

open access: yesJournal of Physics: Conference Series, 2007
In this contribution, we present an experimental study carried out at GSI Darmstadt devoted to investigation of quantum electrodynamical (QED) effects for the ground states in hydrogen- and helium-like uranium. In the experiment, X-ray spectra following radiative recombination of free electrons with bare and H-like uranium ions (U92+, U91+) were ...
A Gumberidze   +18 more
openaire   +1 more source

Extracting the chiral anomaly from e + e − → 3π

open access: yesJournal of High Energy Physics
The strength of the interaction of three pions and a photon, F 3π is predicted by the axial anomaly in terms of the pion decay constant, a relation that is frequently used to constrain low-energy radiative processes involving pions, but only tested ...
Martin Hoferichter   +2 more
doaj   +1 more source

A Systematic Review on Chinese Baijiu Aging Process in Cellular Built Environment: States, Challenges, and Directions

open access: yesFood Science &Nutrition, Volume 14, Issue 4, April 2026.
This review addresses a critical gap in Chinese Baijiu aging research: the neglect of physical properties in cellar storage environments. Current studies emphasize microorganisms, CO2, and base liquor interactions, yet lack systematic consideration of environmental dynamics.
Jin Li   +4 more
wiley   +1 more source

Transverse-momentum resummation at mixed QCD⊗QED NNLL accuracy for Z boson production at hadron colliders

open access: yesJournal of High Energy Physics
We consider the transverse momentum (q T ) distribution of neutral charged bosons at hadron colliders. We perform the resummation of the logarithmically-enhanced effects due to simultaneous QCD and QED initial-state radiation, up to mixed next-to-next-to-
Andrea Autieri   +4 more
doaj   +1 more source

Higher-order Sudakov resummation in coupled gauge theories

open access: yesJournal of High Energy Physics, 2020
We consider the higher-order resummation of Sudakov double logarithms in the presence of multiple coupled gauge in. The associated evolution equations depend on the coupled β functions of two (or more) coupling constants α a and α b , as well as ...
Georgios Billis   +2 more
doaj   +1 more source

Consequences of chirally enhanced explanations of (g − 2) μ for h → μμ and Z → μμ

open access: yesJournal of High Energy Physics, 2021
With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon a μ recently reaffirmed by the Fermilab experiment, the crucial question becomes which other observables could be sensitive ...
Andreas Crivellin, Martin Hoferichter
doaj   +1 more source

Otto Stern—An Involuntary Convert to Quantum Theory

open access: yesNatural Sciences, Volume 6, Issue 2, April 2026.
Otto Stern (1888–1969) at work in his Hamburg laboratory (circa 1930). ABSTRACT The bulk of experiments and observations that lined the path to quantum mechanics amounted to a backlog of data in need of explanation. A notable exception was the Stern–Gerlach experiment (SGE) designed to test the predictions of the old quantum theory as embodied by the ...
Bretislav Friedrich
wiley   +1 more source

Towards a precise determination of the order of the phase transition in compact pure gauge QED

open access: yesPhysics Letters B, 1990
Abstract We present results obtained with a new numerical method, which in principle allows to determine the partition function of a lattice gauge theory, and its derivatives, with an accuracy dictated only by statistical fluctuations. We have used this method in order to determine the order of the phase transition of pure gauge, compact QED and we ...
V., Azcoiti, Di, Carlo, A. F., Grillo
openaire   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

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