Results 31 to 40 of about 9,941 (223)
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 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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Stellar matter with pseudoscalar condensates [PDF]
, 2016 In this work we consider how the appearance of gradients of pseudoscalar condensates in dense systems may possibly influence the transport properties of photons in such a medium as well as other thermodynamic characteristics. We adopt the hypothesis that
D. Espriu +3 more
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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
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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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Ghost Glueball and Pseudoscalar Mixing [PDF]
, 1979 Comments are made on some work of Rosenzweig, Schecter, and Trahern, who construct an effective Lagrangian for QCD involving a pseudoscalar ghost glueball field.
Palmer, William F., Pinsky, Stephen S.
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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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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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On the masses of light pseudoscalar mesons [PDF]
, 2023 We investigate the masses of light pseudoscalar mesons by the method based on a new anomaly free condition for axial vector current. By this viewpoint, the field theories discussed here do not have the $U(1)$ problem.
Liu, Chang-Yong, He, Wei
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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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