Results 1 to 10 of about 141,642 (265)
Magnetic polarizabilities of light mesons in SU(3) lattice gauge theory [PDF]
Nuclear Physics B, 2015 We investigate the ground state energies of neutral pseudoscalar and vector meson in SU(3) lattice gauge theory in the strong abelian magnetic field.
E.V. Luschevskaya +3 more
doaj +4 more sources
The light scalar mesons as tetraquarks [PDF]
Physics Letters B, 2016 We present a numerical solution of the four-quark Bethe–Salpeter equation for ground-state scalar tetraquarks with JPC=0++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe–Salpeter amplitude.
Gernot Eichmann +2 more
doaj +4 more sources
Pseudoscalar Meson Electroproduction and Tranversity [PDF]
Exclusive Reactions at High Momentum Transfer IV, 2010 Exclusive meson leptoproduction from nucleons in the deeply virtual exchanged boson limit can be described by generalized parton distributions (GPDs).
Goldstein, Gary R., Liuti, Simonetta
core +3 more sources
Pseudoscalar Mesons in Nuclear Medium [PDF]
Nuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions, 2003 The behavior of pseudoscalar mesons in nuclear medium is reviewed with an emphasis on the possibility of their Bose-Einstein condensation in dense matter. In particular pion condensation is reexamined in detail, stimulated by recent theoretical and observational developments.
arxiv +6 more sources
Heavy Meson Masses in the ε-Regime of HMχPT [PDF]
, 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 from Lattice QCD calculations of the heavy mesons masses for lattices that satisfy the \epsilon-regime
C. G. Boyd, L. Liu, Raúl A. Briceño
arxiv +3 more sources
Model discrimination in pseudoscalar-meson photoproduction [PDF]
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 +3 more
doaj +5 more sources
On Scalar Meson Dominance in Semi- and Non-Leptonic Weak Pseudoscalar Meson Decays [PDF]
AIP Conf. Proc. 814 (2006) 690, 2005 Aspects of Scalar Meson Dominance in semi- and non-leptonic weak pseudoscalar meson decays are shortly discussed on the basis of the Quark-Level Linear Sigma Model.
Kleefeld, F.
arxiv +4 more sources
The role of meson exchanges in light-by-light scattering
Physics Letters B, 2017 We discuss the role of meson exchange mechanisms in γγ→γγ scattering. Several pseudoscalar (π0, η, η′(958), ηc(1S), ηc(2S)), scalar (f0(500), f0(980), a0(980), f0(1370), χc0(1P)) and tensor (f2(1270), a2(1320), f2′(1525), f2(1565), a2(1700)) mesons are ...
Piotr Lebiedowicz, Antoni Szczurek
doaj +4 more sources
On decays of light unflavoured pseudoscalar mesons [PDF]
arXiv, 2011 The ongoing and planned experimental activities with direct reference to light unflavoured pseudoscalar mesons motivate a new theoretical study regarding their properties. An overview including details on new precise calculations is presented.
Karol Kampf, Karol Kampf
arxiv +4 more sources
Nonleptonic Decays of Charmed Mesons into two Pseudoscalar Mesons [PDF]
Mod.Phys.Lett. A8 (1993) 2079-2086, 1993 We investigate the nonleptonic decay of charmed meson into two pseudoscalar mesons using the vector--dominance model, and compare the results with those obtained from the factorization model. In particular, we discuss the role of the annihilation diagrams in the two models.
Vishnu S. Mathur, Ashok Das
arxiv +4 more sources