Results 11 to 20 of about 116,783 (276)
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 +7 more sources
Heavy + light pseudoscalar meson semileptonic transitions [PDF]
European Physical Journal C: Particles and Fields, 2021 A symmetry-preserving regularisation of a vector $$\times $$ × vector contact interaction (SCI) is used to deliver a unified treatment of semileptonic transitions involving $$\pi $$ π , K, $$D_{(s)}$$ D ( s ) , $$B_{(s,c)}$$ B ( s , c ) initial states ...
Zhen-Ni Xu +3 more
doaj +2 more sources
New meson mass relation and lowest pseudoscalar glueball mass [PDF]
Chin.Phys. 10 (2001) 611-612, 2000 A new meson mass relation for meson nonet is given after considering mixing with glueball. The mixing between pseudoscalar mesons and pseudoscalar glueball will decrease the mass of glueball by about 500 Mev. So, according to the predicted mass of the pure pseudoscalar glueball given by lattice calculation and effective Hamiltonian, the expected mass ...
Ning Wu, Ruan Tu-Nan, Zheng Zhi-Peng
arxiv +3 more sources
QED effects in the pseudoscalar meson sector [PDF]
Journal of High Energy Physics, 2015 A bstractIn this paper we present results on the pseudoscalar meson masses from a fully dynamical simulation of QCD+QED, concentrating particularly on violations of isospin symmetry.
R. Horsley +11 more
semanticscholar +10 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
Radially excited scalar, pseudoscalar, and vector meson nonets in a chiral quark model [PDF]
Phys.Part.Nucl. 31 (2000) 282-311; Fiz.Elem.Chast.Atom.Yadra 31
(2000) 576-633, 1999 A chiral Lagrangian containing, besides the usual meson fields, their first radial excitations is constructed. The Lagrangian is derived by bosonization of a Nambu--Jona-Lasinio (NJL) type quark model with separable nonlocal interactions. The nonlocality is described by form factors corresponding to 3-dimensional excited state wave functions.
M. K. Volkov, V. L. Yudichev
arxiv +3 more sources
Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons [PDF]
European Physical Journal C: Particles and Fields, 2018 We have addressed the study of non-leptonic weak decays of heavy hadrons ($$\Lambda _b, \Lambda _c, B$$ Λb,Λc,B and D), with external and internal emission to give two final hadrons, taking into account the spin-angular momentum structure of the mesons ...
Wei-Hong Liang, E. Oset
doaj +2 more sources
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 ...
T. Vrancx +3 more
semanticscholar +5 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
Pseudoscalar meson and heavy vector meson scattering lengths [PDF]
Physical Review D, 2011 We have systematically studied the S-wave pseudoscalar meson and heavy vector meson scattering lengths to the third order with the chiral perturbation theory, which will be helpful to reveal their strong interaction. For comparison, we have presented the
Zhanfeng Liu +3 more
semanticscholar +5 more sources