Results 61 to 70 of about 27,828 (268)

Nuclear Forces in Pseudoscalar Meson Theory [PDF]

Progress of Theoretical Physics, 1953
The nuclear forces in pseudoscalar meson theory are evaluated using a nonrelativistic approximation to the relativistic interaction. The potential is obtained in a form which allows explicit evaluation of the contribution due to the multiple scattering of the virtual mesons between the two nucleons.
Brueckner, K. A., Watson, K. M.
openaire   +3 more sources

B-meson decay constants: a more complete picture from full lattice QCD [PDF]

, 2015
We extend the picture of $B$-meson decay constants obtained in lattice QCD beyond those of the $B$, $B_s$ and $B_c$ to give the first full lattice QCD results for the $B^*$, $B^*_s$ and $B^*_c$.
A. T. Lytle, B. Colquhoun, C. T. H. Davies, G. P. Lepage, J. Kettle, J. Koponen, null null, R. J. Dowdall   +7 more
core   +2 more sources

Mass Spectrum of Noncharmed and Charmed Meson States in Extended Linear-Sigma Model

Particles
The mass spectrum of different meson particles is generated using an effective Lagrangian of the extended linear-sigma model (eLSM) for scalar and pseudoscalar meson fields and quark flavors, up, down, strange, and charm.
Azar I. Ahmadov, Azzah A. Alshehri, Abdel Nasser Tawfik   +2 more
doaj   +1 more source

Model discrimination in pseudoscalar-meson photoproduction

Physics Letters B, 2016
To learn about a physical system of interest, experimental results must be able to discriminate among models. We introduce a geometrical measure to quantify the distance between models for pseudoscalar-meson photoproduction in amplitude space ...
J. Nys, J. Ryckebusch, D.G. Ireland, D.I. Glazier   +3 more
doaj   +1 more source

Electromagnetic Transition Form Factors of Mesons

, 2011
Using a counting scheme which treats pseudoscalar and vector mesons on equal footing, the decays of the narrow light vector mesons omega and phi into a dilepton and a pseudoscalar pi-meson or eta-meson, respectively, are calculated. Thereby, all required
Achasov, Arnaldi, C. Terschlüsen, Gasser, Leupold, Lutz, Nakamura, S. Leupold, Sakurai, Scherer, Terschlüsen   +10 more
core   +1 more source

Pseudoscalar and vector meson form factors from lattice QCD [PDF]

, 2007
We present a study of the pseudoscalar and vector meson form factors, calculated using the Fat-Link Irrelevant Clover (FLIC) action in the framework of Quenched Lattice QCD.
A. G. Williams, B. G. Lasscock, B. G. Lasscock, D. B. Leinweber, J. Bjorken, J. M. Zanotti, J. N. Hedditch, J. J. Sakurai, S. Hashimoto, W. Kamleh   +9 more
core   +2 more sources

On the mixing of pseudoscalar mesons

Physics Letters B, 1983
Abstract We calculate the mixing between a glueball and qq pseudoscalars (both the ground state and the first radial excitation) in the framework of the MIT bag model. Our results are large, strongly violate SU(3) and are very sensitive to small changes in the parameters of the model.
Donoghue, John, Gomm, Harald
openaire   +3 more sources

Meson electromagnetic form factors

EPJ Web of Conferences, 2012
The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.
Dubničková Anna Z., Dubnička Stanislav   +1 more
doaj   +1 more source

Gamma-gamma physics and meson transition form factors [PDF]

EPJ Web of Conferences, 2020
I summarize recent experimental results for two photon production of mesons. These processes include the neutral pion, η and η′ transition form factors and two photon production of pseudoscalar meson pairs.
Kupsc Andrzej
doaj   +1 more source

Further evidence for a large glue component in the f0(1500) meson

, 2002
We argue that the experimental decay rates of the f0(1500) meson into two pseudoscalar mesons and into two photons are incompatible with a quark-antiquark state and that the f0(1710) meson is dominantly an ssbar state.Comment: 11 ...
Abele, Abele, Acciarri, Acciarri, Achasov, Alekseev, Amsler, Amsler, Amsler, Amsler, Amsler, Amsler, Amsler, Amsler, Anisovich, Aston, Barate, Barberis, Barberis, Barberis, Barberis, Barnes, Barnes, Bergström, Bertin, Boglione, Boglione, Bugg, Claude Amsler, Close, Dunwoodie, Frabetti, Groom, Hagiwara, Jaffe, Li, Michael, Minkowski, Morgan, Morningstar, Oller, Tumanov, Törnquist, Weingarten, Weingarten, Weingarten, Weinstein   +46 more
core   +1 more source