Results 71 to 80 of about 61,183 (280)
Baryon asymmetry and gravitational waves from pseudoscalar inflation [PDF]
, 2017 In models of inflation driven by an axion-like pseudoscalar field, the inflaton, a, may couple to the standard model hypercharge via a Chern-Simons-type interaction, ℒ ⊃ a/(4Λ) FF̃.
D. Jimenez +3 more
semanticscholar +1 more source
Mass dependence of pseudoscalar meson elastic form factors [PDF]
Physical Review D, 2018 A continuum approach to quark-antiquark bound-states is used to determine the electromagnetic form factors of pion-like mesons with masses $m_{0^-}/{\rm GeV}=0.14$, $0.47$, $0.69$, $0.83$ on a spacelike domain that extends to $Q^2 \lesssim 10\,$GeV$^2 ...
Muyang Chen +3 more
semanticscholar +1 more source
WW Scattering Parameters via Pseudoscalar Phase Shifts [PDF]
, 2012 Using domain-wall lattice simulations, we study pseudoscalar-pseudoscalar scattering in the maximal isospin channel for an SU(3) gauge theory with two and six fermion flavors in the fundamental representation.
Appelquist, Thomas +17 more
core +2 more sources
Pseudoscalar mediators: a WIMP model at the neutrino floor [PDF]
, 2017 Due to its highly suppressed cross section (fermionic) dark matter interacting with the Standard Model via pseudoscalar mediators is expected to be essentially unobservable in direct detection experiments.
G. Arcadi +4 more
semanticscholar +1 more source
Poincaré-covariant quark model of electroweak light mesons decays [PDF]
EPJ Web of Conferences, 2019 The procedure for obtaining the radiative decay constants of pseudoscalar and vector unflavored mesons in point–form of Poincaré-invariant quantum mechanics is presented.
Andreev Viktor, Haurysh Vadzim
doaj +1 more source
Magneto-optic effects of the cosmic microwave background
Nuclear Physics B, 2018 Generation of magneto-optic effects by the interaction of the CMB with cosmic magnetic fields is studied. Effects which generate polarization such as the Cotton–Mouton effect, vacuum polarization and photon–pseudoscalar mixing in external magnetic field ...
Damian Ejlli
doaj +1 more source
Can the 126 GeV boson be a pseudoscalar?
, 2012 We test the possibility that the newly-discovered 126 GeV boson is a pseudoscalar by examining the correlations among the loop-induced pseudoscalar decay branching fractions to $\gamma\gamma$, $ZZ^*$, $Z\gamma$, and $WW^*$ final states in a model ...
Baradhwaj Coleppa +4 more
core +1 more source
, 1991 In the large quark mass limit, an argument which identifies the mass of the heavy-light pseudoscalar or scalar bound state with the renormalized mass of the heavy quark is given.
Testa, Massimo
core +2 more sources
Pseudoscalar—sterile neutrino interactions: reconciling the cosmos with neutrino oscillations [PDF]
, 2016 The Short BaseLine (SBL) neutrino oscillation anomalies hint at the presence of a sterile neutrino with a mass of around 1 eV. However, such a neutrino is incompatible with cosmological data, in particular observations of the Cosmic Microwave Background (
M. Archidiacono +6 more
semanticscholar +1 more source
On the mixing of pseudoscalar mesons
Physics Letters B, 1983 Abstract We calculate the mixing between a glueball and qq pseudoscalars (both the ground state and the first radial excitation) in the framework of the MIT bag model. Our results are large, strongly violate SU(3) and are very sensitive to small changes in the parameters of the model.
Donoghue, John, Gomm, Harald
openaire +4 more sources