Results 21 to 30 of about 51,008 (236)
Pseudoscalar meson radial excitations [PDF]
Physical Review C, 2004 5 pages, 3 ...
Hoell, A., Krassnigg, A., Roberts, C. D.
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On the photon-pseudoscalar particle mixing in media and external fields
European Physical Journal C: Particles and Fields, 2021 In this work, I study the mixing of photons with pseudoscalar particles and vice-versa in the presence of an external magnetic field and a pseudoscalar field.
Damian Ejlli
doaj +1 more source
Nonminimally coupled pseudoscalar inflaton [PDF]
Physical Review D, 2018 We consider a scenario in which the inflaton $ $ is a pseudoscalar field non-minimally coupled to gravity through a term of the form ${\cal X} R ^2$. The pseudoscalar is also coupled to a $U(1)$ gauge field (or an ensemble of ${\cal N}$ gauge fields) through an axial coupling of the form $ F \tilde{F}$. After M. M. Anber and L. Sorbo, Phys. Rev.
Beltrán Almeida, Juan P. +1 more
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Pseudoscalar mass effects in the decays of τ with three pseudoscalar mesons [PDF]
Physical Review D, 1994 We study the effects of non-vanishing pseudoscalar masses in $ $ decays into three mesons. The hadronic matrix elements are obtained by using the generalized structure of the chiral currents with nonvanishing pseudoscalar masses and implementing the low-lying resonances in the different channels.
Decker, Roger +2 more
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Production of a Higgs pseudoscalar plus two jets in hadronic collisions [PDF]
, 1998 We consider the production of a Higgs pseudoscalar accompanied by two jets in hadronic collisions. We work in the limit that the top quark is much heavier than the Higgs pseudoscalar and use an effective Lagrangian for the interactions of gluons with the
F. Berends +14 more
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Vectorlike leptons and long-lived bosons at the LHC
Journal of High Energy Physics, 2023 We study a renormalizable theory that includes a heavy weak-singlet vectorlike lepton, τ ′ , that decays into a pseudoscalar boson and a tau lepton. We show that this can be the dominant decay mode of τ ′ provided the pseudoscalar couplings deviate from ...
Elias Bernreuther, Bogdan A. Dobrescu
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Vacuum pseudoscalar susceptibility [PDF]
Physical Review C, 2010 We derive a novel model-independent result for the pion susceptibility in QCD via the isovector-pseudoscalar vacuum polarisation. In the neighbourhood of the chiral-limit, the pion susceptibility can be expressed as a sum of two independent terms. The first expresses the pion-pole contribution.
Chang, Lei +5 more
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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
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Pseudoscalar-photon Interactions, Axions, Non-Minimal Extensions, and Their Empirical Constraints from Observations [PDF]
, 2011 Pseudoscalar-photon interactions were proposed in the study of the relations among equivalence principles. The interaction of pseudoscalar axion with gluons was proposed as a way to solve the strong CP problem.
Balakin, A. B. +2 more
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The Schwinger Nonet Mass and Sakurai Mass-Mixing Angle Formulae Reexamined [PDF]
, 1998 We study the origins of the inaccuracies of Schwinger's nonet mass, and the Sakurai mass-mixing angle, formulae for the pseudoscalar meson nonet, and suggest new versions of them, modified by the inclusion of the pseudoscalar decay constants.
Dashen +11 more
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