Results 141 to 150 of about 264,462 (334)
Neutral pion photoproduction at threshold and explicit chiral symmetry breaking
Physics Letters B, 1990 Abstract We investigate effects of explicit chiral symmetry breaking on the ( γ , π 0 ) amplitude at threshold (the photoproduction “sigma”- term) using a chiral bag model of the nucleon. We point out a strong connection between this term and the flavor singlet axial coupling constant g A 0 which measures the spin fraction carried by the quarks ...
T. Schäfer, W. Weise
openaire +1 more source
Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn
Advanced Functional Materials, EarlyView.Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed +7 more
wiley +1 more source
Heavy Higgs of the Twin Higgs models
Journal of High Energy Physics, 2018 Twin Higgs models are the prime illustration of neutral naturalness, where the new particles of the twin sector, gauge singlets of the Standard Model (SM), ameliorate the little hierarchy problem. In this work, we analyse phenomenological implications of
Aqeel Ahmed
doaj +1 more source
π0, η, η' → γγ Decays and the Explicit Chiral Symmetry Breaking [PDF]
, 2023 A. A. Osipov
openalex +1 more source
Axion dark matter in the post-inflationary Peccei-Quinn symmetry breaking scenario
, 2016 We consider extensions of the Standard Model in which a spontaneously broken global chiral Peccei-Quinn (PQ) symmetry arises as an accidental symmetry of an exact $Z_N$ symmetry.
Ringwald, Andreas, Saikawa, Ken'ichi
core +1 more source
Advanced Functional Materials, EarlyView.A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon +8 more
wiley +1 more source
Designer Curved-Space Geometry for Relativistic Fermions in Weyl Metamaterials
Physical Review X, 2017 Weyl semimetals are recently discovered materials supporting emergent relativistic fermions in the vicinity of band-crossing points known as Weyl nodes.
Alex Westström, Teemu Ojanen
doaj +1 more source
Quasi-static probes of the QCD plasma
, 2011 Screening correlators and masses were studied at finite temperature in QCD with two flavours of dynamical staggered quarks on a lattice. The spectrum of screening masses show a hierarchical approach to chiral symmetry restoration.
D. Banerjee +7 more
core +1 more source
Advanced Functional Materials, EarlyView.This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva +9 more
wiley +1 more source
SU(2) Higher-order effective quark interactions from polarization
Physics Letters B, 2016 Higher order quark effective interactions are found for SU(2) flavor by departing from a non-local quark–quark interaction. By integrating out a component of the quark field, the determinant is expanded in chirally symmetric and symmetry breaking ...
Fábio L. Braghin
doaj +1 more source