Results 11 to 20 of about 1,110 (184)
Scalar-Pseudoscalar scattering and pseudoscalar resonances [PDF]
AIP Conference Proceedings, 2011 The interactions between the f_0(980) and a_0(980) scalar resonances and the lightest pseudoscalar mesons are studied. We first obtain the interacting kernels, without including any ad hoc free parameter, because the lightest scalar resonances are dynamically generated.
M. Albaladejo, J. A. Oller, L. Roca
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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. We compute the decay channels for a pseudoscalar glueball with a mass of 2.6 GeV, as predicted by Lattice QCD in the quenched ...
Walaa I. Eshraim +3 more
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Where is the pseudoscalar glueball? [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2011 The pseudoscalar mesons with the masses higher than 1 GeV are assumed to belong to the meson decuplet including the glueball as the basis state supplementing the standard $SU(3)_F$ nonet of light $q\bar{q}$ states $(u,d,s)$. The decuplet is investigated by means of an algebraic approach based on hypothesis of vanishing the exotic $SU(3)_F$ commutators ...
Majewski, M, Meshcheryakov, V A
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Photoproduction of pseudoscalar mesons [PDF]
Nuclear Physics A, 2003 4 pages, 4 figures, Proceedings of Particles and Nuclei, PANIC2002, Osaka, Japan, Sept.30-Oct.4 ...
Arndt, R. A. +4 more
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The pseudoscalar decay constant [PDF]
Nuclear Physics B - Proceedings Supplements, 2005 We discuss insights that may be drawn from our recent 2 flavour O(a)--improved Wilson quark simulations. We discuss the evidence of the onset of chiral logarithms in the pion decay constant. An overview is given of current extrapolation methods and a modification of chiral perturbation theory is presented as an approach for sensibly extrapolating to ...
Wright, SV, UKQCD Collaboration
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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 $τ$ 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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ON THE COMPLEXION OF PSEUDOSCALAR MESONS [PDF]
International Journal of Modern Physics A, 2005 A strongly momentum-dependent dressed-quark mass function is basic to QCD. It is central to the appearance of a constituent-quark mass-scale and an existential prerequisite for Goldstone modes. Dyson-Schwinger equation (DSEs) studies have long emphasised this importance, and have proved that QCD's Goldstone modes are the only pseudoscalar mesons to ...
Hoell, A. +3 more
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Pseudoscalar vertex and quark masses [PDF]
Nuclear Physics B - Proceedings Supplements, 2000 LATTICE99 (Improvement and Renormalization), 3 p., 3 ...
Cudell, Jean-René +2 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 MESON ELECTROPRODUCTION AND TRANSVERSITY [PDF]
Exclusive Reactions at High Momentum Transfer IV, 2011 Exclusive meson leptoproduction from nucleons in the deeply virtual exchanged boson limit can be described by generalized parton distributions (GPDs). Including spin dependence in the description requires 8 independent quark-parton and gluon-parton functions.
Goldstein, Gary R., Liuti, Simonetta
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