Results 11 to 20 of about 62,043 (279)
Decay of the pseudoscalar glueball into scalar and pseudoscalar mesons [PDF]
Physical Review D, 2013 We study a chiral Lagrangian which describes the two- and three-body decays of a pseudoscalar glueball into scalar and pseudoscalar mesons. The various branching ratios are a parameter-free prediction of our approach.
Eshraim, Walaa I. +3 more
core +2 more sources
Excited scalar and pseudoscalar mesons in the extended linear sigma model [PDF]
European Physical Journal C: Particles and Fields, 2017 We present an in-depth study of masses and decays of excited scalar and pseudoscalar $${\bar{q}}q$$ q ¯ q states in the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar, pseudoscalar, vector and axial-vector mesons.
Denis Parganlija, Francesco Giacosa
doaj +2 more sources
Spectrum of scalar and pseudoscalar glueballs from functional methods. [PDF]
Eur Phys J C Part Fields, 2020 We provide results for the spectrum of scalar and pseudoscalar glueballs in pure Yang–Mills theory using a parameter-free fully self-contained truncation of Dyson–Schwinger and Bethe–Salpeter equations.
Huber MQ, Fischer CS, Sanchis-Alepuz H.
europepmc +3 more sources
Altermagnetism and magnetic groups with pseudoscalar electron spin [PDF]
Physical review B, 2022 We revise existing group-theoretical approaches for a treatment of nonrelativistic collinear magnetic systems with perfect translation invariance. We show that full symmetry groups of these systems, which contain elements with independent rotations in ...
I. Turek
semanticscholar +1 more source
Neutron star observations of pseudoscalar-mediated dark matter [PDF]
Physical Review D, 2022 Scattering interactions between dark matter and Standard Model states mediated by pseudoscalars are generically challenging to uncover at direct detection experiments due to rates suppressed by powers of the local dark matter velocity v DM ∼ 10 − 3 c ...
J. Coffey +3 more
semanticscholar +1 more source
Fermion singlet dark matter in a pseudoscalar dark matter portal [PDF]
Journal of High Energy Physics, 2021 We explore a simple extension to the Standard Model containing two gauge singlets: a Dirac fermion and a real pseudoscalar. In some regions of the parameter space both singlets are stable without the necessity of additional symmetries, then becoming a ...
Basti'an D'iaz S'aez +3 more
semanticscholar +1 more source
Revealing the structure of light pseudoscalar mesons at the electron–ion collider [PDF]
, 2021 How the bulk of the Universe's visible mass emerges and how it is manifest in the existence and properties of hadrons are profound questions that probe into the heart of strongly interacting matter.
J. Arrington +31 more
semanticscholar +1 more source
Nucleon axial-vector and pseudoscalar form factors, and PCAC relations [PDF]
, 2021 We use a continuum quark+diquark approach to the nucleon bound-state problem in relativistic quantum field theory to deliver parameter-free predictions for the nucleon axial and induced pseudoscalar form factors, $G_A$ and $G_P$, and unify them with the ...
Chen Chen +3 more
semanticscholar +1 more source
Pseudoscalar vertex and quark masses [PDF]
Nuclear Physics B - Proceedings Supplements, 2000 LATTICE99 (Improvement and Renormalization), 3 p., 3 ...
J. R. Cudell, A. Le Yaouanc, C. Pittori
openalex +5 more sources
First lattice calculation of radiative leptonic decay rates of pseudoscalar mesons [PDF]
Physical Review D, 2020 We present a non-perturbative lattice calculation of the form factors which contribute to the amplitudes for the radiative decays $P\to \ell \bar \nu_\ell \gamma$, where $P$ is a pseudoscalar meson and $\ell$ is a charged lepton.
A. Desiderio +10 more
semanticscholar +1 more source