Results 81 to 90 of about 521,380 (323)
Non-unitary neutrino propagation from neutrino decay
Physics Letters B, 2015 Neutrino propagation in space–time is not constrained to be unitary if very light states – lighter than the active neutrinos – exist into which neutrinos may decay. If this is the case, neutrino flavor-change is governed by a handful of extra mixing and “
Jeffrey M. Berryman +3 more
doaj +1 more source
Ethnic-racial identity in Sweden: Dimensionality, measurement invariance, and psychosocial adjustment. [PDF]
J Res AdolescAbstract This study examines ethnic‐racial identity (ERI) among majority and minority adolescents in Sweden, focusing on the dimensionality and measurement invariance of ERI subscales, and how the ERI dimensions across these subscales relate to psychosocial adjustment. Using data from 665 Swedish adolescents, we assessed the structure and invariance of
Reinholdsson T +5 more
europepmc +2 more sources
Chiral Vacuum Alignment and Spontaneous CP Violation by Four-Fermi Operators
, 2009 In models where there is a global chiral symmetry which spontaneously breaks to its vectorial subgroup, the introduction of an explicit symmetry breaking perturbation will define the true vacuum of the theory.
Rador, Tonguç
core +1 more source
From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries
Advanced Energy Materials, EarlyView.This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku +5 more
wiley +1 more source
Solving the strong CP problem without axions
Journal of High Energy PhysicsWe formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark-mass matrix elements are polynomials in the CP-breaking order parameters, engineered such that their determinant is a real constant.
Ferruccio Feruglio +3 more
doaj +1 more source
Vacuum induced CP violation generating a complex CKM matrix with controlled scalar FCNC
European Physical Journal C: Particles and Fields, 2019 We propose a viable minimal model with spontaneous CP violation in the framework of a two Higgs doublet model. The model is based on a generalised Branco–Grimus–Lavoura model with a flavoured $$\mathbb {Z}_2$$ Z2 symmetry, under which two of the quark ...
Miguel Nebot +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Organic photoelectrochemical cells based on π‐conjugated semiconductors offer a versatile platform for solar fuel generation. This review outlines operating principles, device architectures, and key metrics, and highlights advances in p‐ and n‐type photoelectrodes, interfacial engineering, and catalyst integration.
Jaehyeong Kim +8 more
wiley +1 more source
Large-scale non-locality in "doubly special relativity" with an energy-dependent speed of light
, 2003 There are two major alternatives for violating the (usual) Lorentz invariance at large (Planckian) energies or momenta - either not all inertial frames (in the Planck regime) are equivalent (e.g., there is an effectively preferred frame) or the ...
D. Grumiller +20 more
core +1 more source
Advanced Energy Materials, EarlyView.Strain‐driven Ru inward migration creates confined RuO2/Pt mosaic heterointerfaces within a PtNi multiframe. These interfaces enable redox‐asymmetric Pt–Ru coupling that stabilizes Ru4+, suppresses lattice oxygen participation, and promotes highly durable acidic oxygen evolution.
Yeji Park +13 more
wiley +1 more source
Leida xuebao, 2020 Compact Polarimetric (CP) mode is a new dual-pol mode introduced in the last decade. The main current CP mode transmits circular polarized waves. Data in the form of Stokes parameters obtained by this mode has rotational invariance.
CHEN Shiqiang, HONG Wen
doaj +1 more source