Results 1 to 10 of about 112,653 (308)

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, Zhu-Fang Cui, Craig D. Roberts, Chang Xu   +3 more
doaj   +2 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, Y. Nakamura, H. Perlt, D. Pleiter, P. Rakow, G. Schierholz, A. Schiller, R. Stokes, H. Stüben, R. Young, J. Zanotti, for the CDFD0 Collaborations   +11 more
semanticscholar   +10 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, J. Ryckebusch, D.G. Ireland, D.I. Glazier   +3 more
doaj   +5 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

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, J. Ryckebusch, T. V. Cuyck, P. Vancraeyveld   +3 more
semanticscholar   +5 more sources

Nonlinear Pseudoscalar Meson Theory [PDF]

Progress of Theoretical Physics, 1953
F. Čap
openalex   +3 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, Yan-Rui Liu, Xiang Liu, Shi-Lin Zhu   +3 more
semanticscholar   +5 more sources

Decays of Pseudoscalar Mesons [PDF]

Progress of Theoretical Physics, 1981
S. Minami, R. Nakashima
openalex   +3 more sources

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model [PDF]

Physical Review D, 2023
In the light-front quark model (LFQM) amenable to the simultaneous study of both the mass spectroscopy and the wave function related observables, we examine the decay constants and distribution amplitudes (DAs) up to the twist-4.
A. Arifi, H. Choi, C. Ji
semanticscholar   +1 more source

Light pseudoscalar meson and heavy meson scattering lengths

Physical Review D, 2009
We have performed a systematical calculation of the pion ($\ensuremath{\pi}$, $K$, $\ensuremath{\eta}$) and heavy pseudoscalar meson $S$-wave scattering lengths up to $\mathcal{O}({p}^{3})$ in the chiral perturbation theory in the heavy quark symmetry ...
Yan-Rui Liu, Xiang Liu, Shi-Lin Zhu
semanticscholar   +4 more sources