Results 101 to 110 of about 65,037 (303)
Pseudoscalar meson radial excitations [PDF]
Physical Review C, 2004 5 pages, 3 ...
Craig D. Roberts +3 more
openaire +3 more sources
The Dynamical Mixing of Light and Pseudoscalar Fields [PDF]
Pramana70:439,2008, 2004 We solve the general problem of mixing of electromagnetic and scalar or pseudoscalar fields coupled by axion-type interactions ${\cal L}_{int} =g_{\phi} \phi \epsilon_{\mu \nu \a \b}F^{\mu \nu}F^{\a \b} $. The problem depends on several dimensionful scales, including the magnitude and direction of background magnetic field, the pseudoscalar mass ...
arxiv +1 more source
Weak magnetism effects in the direct Urca processes in cooling neutron stars [PDF]
, 2002 In the mean field approximation, we study the effects of weak magnetism and pseudoscalar interaction in the neutrino energy losses caused by the direct Urca processes on relativistic nucleons in the degenerate baryon matter.
Leinson, L. B.
core +3 more sources
Nπ states and the projection method for the nucleon axial and pseudoscalar form factors
Physical Review D, 2019 The RQCD collaboration proposed a projection method to remove the excited state contamination in lattice OCD calculations of nuclear form factors. The effectiveness of this method in removing the two-particle nucleon-pion-state contamination is examined ...
O. Bär
semanticscholar +1 more source
Probing the Pseudoscalar portal to Dark Matter via $\bar{b} b Z( \rightarrow \ell\ell) + E_{T} \hspace{-8mm}/\hspace{4mm}$: From the LHC to the Galactic Centre Excess [PDF]
, 2017 We propose a new search for Dark Matter at the LHC, characteristic of scenarios beyond the Standard Model with a pseudoscalar portal between the visible and dark sectors. This search, leading to a $\bar{b} b Z( \rightarrow \ell\ell) + E_{T} \hspace{-4mm}/
P. Tunney, J. No, M. Fairbairn
semanticscholar +1 more source
Nonlinear Vortex Dichroism in Chiral Molecules
Advanced Optical Materials, Volume 13, Issue 3, January 24, 2025.Chiral molecules are shown to absorb two photons from a linearly polarized Laguerre–Gaussian vortex beams at different rates depending on the sign and magnitude of orbital angular momentum: nonlinear vortex dichroism. This new form of nonlinear optical activity is shown to have many remarkable properties, including novel access to structural ...
Luke Cheeseman, Kayn A. Forbes
wiley +1 more source
Physics Letters B, 2022 We carry out the first lattice QCD derivation of the mixing energy and the mixing angle of the pseudoscalar charmonium and glueball on two gauge ensembles with Nf=2 degenerate dynamical charm quarks. The mixing energy is determined to be 49(6) MeV on the
Renqiang Zhang +5 more
doaj
The scalar and pseudoscalar sector in a five-dimensional approach to chiral symmetry breaking [PDF]
JHEP 0601 (2006) 157, 2005 We study the scalar and pseudoscalar sector in a five-dimenional model describing chiral symmetry breaking. We calculate the scalar and pseudoscalar two-point correlator, the mass spectrum and interactions. We also obtain the scalar and pseudoscalar contributions to the coefficients of the chiral lagrangian and determine the scalar form factor of the ...
arxiv +1 more source
Supersymmetric 3-3-1 model with right-handed neutrinos
, 2004 We consider the supersymmetric extension of the 3-3-1 model with right-handed neutrinos. We study the mass spectra in the scalar and pseudoscalar sectors, and for a given set of the input parameters, we find that the lightest scalar in the model has a ...
J. C. Montero +4 more
core +1 more source
Chiral Properties of Pseudoscalar Mesons on a Quenched $20^4$ Lattice with Overlap Fermions [PDF]
, 2001 The chiral properties of the pseudoscalar mesons are studied numerically on a quenched $20^4$ lattice with the overlap fermion. We elucidate the role of the zero modes in the meson propagators, particularly that of the pseudoscalar meson.
Dong, S. J. +5 more
core +3 more sources