Results 21 to 30 of about 25,991 (134)
Heavy Meson Masses in the \epsilon-Regime of HM\chi PT
, 2011 The pseudoscalar and vector heavy meson masses are calculated in the \epsilon-regime of Heavy Meson Chiral Perturbation Theory to order \epsilon^4. The results of this calculation will allow the determination of low-energy coefficients (LECs) directly ...
C. G. Boyd, L. Liu, Raúl A. Briceño
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Leptonic and semileptonic decays of pseudoscalar mesons [PDF]
Physics Letters B, 1999 12 pages LaTeX (elsart.sty) + 4 figures; added references, to appear in Phys.
M. A. IVANOV, SANTORELLI, PIETRO
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Bilocal Field Approach and Semileptonic Heavy Meson Decays
, 1992 In this paper we consider the bilocal field approach for $QCD$. We obtain a bilocal effective meson action with a potential kernel given in relativistic covariant form.
Kalinovsky, Yu. L., Kaschluhn, L.
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Incompleteness of complete pseudoscalar-meson photoproduction [PDF]
Physical Review C, 2013 [Background] A complete set is a minimum set of observables which allows one to determine the underlying reaction amplitudes unambiguously. Pseudoscalar-meson photoproduction from the nucleon is characterized by four such amplitudes and complete sets involve single- and double-polarization observables.
Vrancx, Tom +3 more
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Chiral Lagrangian Parameters for Scalar and Pseudoscalar Mesons
, 2003 The results of a high-statistics study of scalar and pseudoscalar meson propagators in quenched lattice QCD are presented. For two values of lattice spacing, $\beta=5.7$ ($a \approx .18$ fm) and 5.9 ($a \approx .12$ fm), we probe the light quark mass ...
A.X. El-Khadra +30 more
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Multipole analysis of spin observables in vector meson photoproduction [PDF]
, 1995 A multipole analysis of vector meson photoproduction is formulated as a generalization of the pseudoscalar meson case. Expansion of spin observables in the multipole basis and behavior of these observables near threshold and resonances are examined ...
A. I. Titov +11 more
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Pseudoscalar mesons and instantons [PDF]
Nuclear Physics B, 1983 Abstract We discuss the QCD sum rules for the correlators of pseudoscalar currents with quantum numbers of π, K, η, η′ mesons. In the framework of the instanton model of the QCD vacuum suggested earlier by the author, we calculate SU(3) breaking effects such as K, η masses and ηη′ mixing, as well as the U(1) breaking effect, the η′ mass.
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Pseudoscalar Meson Dominance and Nucleon Structure
Few-Body Systems, 2023 Presented by E.R.A. at the International Conference on the Structure of Baryons Baryons 2022).Nov 7--11, 2022 Seville (Spain)
Arriola, Enrique Ruiz +1 more
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Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$
, 2008 We calculate the radiative decay widths of the $a_0(980)$ and $f_0(980)$ scalar mesons into $\rho\gamma$ and $\omega\gamma$ considering the dynamically generated nature of these scalar resonances within the realm of the Chiral Unitary Approach.
Nagahiro, H., Oset, E., Roca, L.
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Chiral Properties of Pseudoscalar Mesons on a Quenched $20^4$ Lattice with Overlap Fermions [PDF]
, 2001 The chiral properties of the pseudoscalar mesons are studied numerically on a quenched $20^4$ lattice with the overlap fermion. We elucidate the role of the zero modes in the meson propagators, particularly that of the pseudoscalar meson.
Dong, S. J. +5 more
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