Results 31 to 40 of about 208,309 (159)

Topological susceptibility and QCD axion mass: QED and NNLO corrections

open access: yesJournal of High Energy Physics, 2019
We improve the precision of the topological susceptibility of QCD, and therefore of the QCD axion mass, by including O(α em) and NNLO corrections in the chiral expansion, which amount to 0.65(21)% and -0.71(29)% respectively.
Marco Gorghetto, Giovanni Villadoro
doaj   +1 more source

Heating neutron stars with GeV dark matter

open access: yesJournal of High Energy Physics, 2020
An old neutron star (NS) may capture halo dark matter (DM) and get heated up by the deposited kinetic energy, thus behaving like a thermal DM detector with sensitivity to a wide range of DM masses and a variety of DM-quark interactions.
Wai-Yee Keung   +2 more
doaj   +1 more source

Neutrino Oscillation in a Minimal Length Spacetime

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We investigate how neutrino oscillations are modified in a non‐commutative spacetime characterized by a minimal length scale, described by the Quesne–Tkachuk algebra. By incorporating the algebra's deformation parameter β$$ \beta $$ into the effective neutrino mass, we derive the two‐flavor oscillation probability in this non‐commutative ...
Luísa Nadal‐Camargo   +3 more
wiley   +1 more source

Antinucleon-nucleon interaction at next-to-next-to-next-to-leading order in chiral effective field theory

open access: yesJournal of High Energy Physics, 2017
Results for the antinucleon-nucleon N ¯ N $$ \left(\overline{N}\;N\right) $$ interaction obtained at next-to-next-to-next-to-leading order in chiral effective field theory (EFT) are reported.
Ling-Yun Dai   +2 more
doaj   +1 more source

Generalized positivity bounds on chiral perturbation theory

open access: yesJournal of High Energy Physics, 2020
Recently, a new set of positivity bounds with t derivatives have been discovered. We explore the generic features of these generalized positivity bounds with loop amplitudes and apply these bounds to constrain the parameters in chiral perturbation theory
Yu-Jia Wang   +3 more
doaj   +1 more source

Spatial Statistics for Screening Molecular Structures

open access: yesSmall, EarlyView.
Deep architectures for materials discovery demand vast training data and obscure the structure‐property link. This review shows how spatial statistics offer a physically grounded alternative: voxelized fields and two‐point correlations, compressed by principal component analysis, yield convex, interpretable descriptors. Lean surrogates then reach sub‐2%
Pranoy Ray, Surya R. Kalidindi
wiley   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

Chiral restoration transition in scaled effective Lagrangians

open access: yes, 1994
peer reviewedWe make a systematic study of the chiral restoration transition in function of the two free parameters of two scaled effective NJL Lagrangians.
Van den Bossche, Bruno   +3 more
core   +1 more source

One-loop analysis of the interactions between doubly charmed baryons and Nambu-Goldstone bosons

open access: yesJournal of High Energy Physics, 2023
The interactions between the spin-1/2 doubly charmed baryons and Nambu-Goldstone bosons are analyzed within a manifestly relativistic baryon chiral perturbation theory up to next-to-next-to leading order, by using the so-called extended-on-mass-shell ...
Ze-Rui Liang   +2 more
doaj   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

open access: yesAdvanced Physics Research, Volume 5, Issue 7, July 2026.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang   +2 more
wiley   +1 more source

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