Pseudoscalar pole terms contributions to hadronic light-by-light corrections to the muonium hyperfine splitting [PDF]
, 2002 The contribution of pseudoscalar pole diagrams to the hadronic light-by-light corrections of order alpha^3 E_F to the ground state hyperfine splitting in hydrogenic atom is calculated in the pseudoscalar pole terms approximation.
A.P Martynenko +34 more
core +2 more sources
The a0(980) and f0(980) in the process Ds+→K+K−π+
Physics Letters B, 2021 In this work, we have investigated the process Ds+→K+K−π+, taking into account the contributions from the S-wave pseudoscalar-pseudoscalar interaction within the chiral unitary approach, and also the intermediate ϕ resonance.
Jun-Ya Wang +5 more
doaj
Pseudoscalar decay constant in the heavy light systems [PDF]
Nucl.Phys.Proc.Suppl.73:366-368,1999, 1998 We discuss the size of the higher order terms in the NRQCD expansion of the pseudoscalar decay constant. Power law divergences in the matrix elements contributing to the pseudoscalar decay constant are also investigated.
arxiv +1 more source
Witten-Veneziano mechanism and pseudoscalar glueball-meson mixing in holographic QCD [PDF]
Physical Review D, 2019 We revisit the $U(1)_A$ anomaly in the holographic model of low-energy QCD by Witten, Sakai, and Sugimoto, presenting a new and direct derivation of the Witten-Veneziano mechanism for generating the mass of the $\eta'$ through an anomalous mixing of the ...
J. Leutgeb, A. Rebhan
semanticscholar +1 more source
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
Reconstructing heavy Higgs boson masses in a type X two-Higgs-doublet model with a light pseudoscalar particle [PDF]
Physical Review D, 2018 We analyze the prospects of reconstructing the mass of a heavy charged Higgs boson %have been analyzed in the context of a Type X two-Higgs doublet model where a light pseudoscalar $A$ in the mass range $40-60$ GeV is phenomenologically allowed, and is ...
E. Chun +4 more
semanticscholar +1 more source
Sum rules for total cross-sections of hadron photoproduction on pseudoscalar mesons [PDF]
Phys.Rev.D74:034023,2006, 2006 Sum rules are derived relating mean squared charge radii of the pseudoscalar mesons with the convergent integral of the difference of hadron photoproduction cross-sections on pseudoscalar mesons.
arxiv +1 more source
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
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
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