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
Twist-2 pseudoscalar and vector meson distribution amplitudes in light-front quark model with exponential-type confining potential [PDF]
Physical Review D, 2019 We study the twist-2 distribution amplitudes (DAs) and the decay constants of pseudoscalar light ($\pi$, $K$) and heavy ($D$, $D_s$, $B$, $B_s$) mesons as well as the longitudinally and transversely polarized vector light ($\rho$, $K^*$) and heavy ($D^*$,
Nisha Dhiman +3 more
openalex +3 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
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
Pseudoscalars and the η′ in the holographic soft-wall model [PDF]
EPJ Web of Conferences, 2022 Pseudoscalar mesons and glueballs are studied in a model based on the AdS/QCD correspondence. Glueball masses are obtained in the pure-gauge case, while the mixing between pseudoscalar glueballs and singlet pseudoscalar mesons produces the expected mass ...
Giannuzzi Floriana, Nicotri Stefano
doaj +1 more source
Potential higher radial excitations in the light pseudoscalar meson family [PDF]
Physical Review D, 2020 Inspired by the event accumulation around 2.6 GeV in the $\eta^\prime\pi^+\pi^-$ invariant mass spectrum of $J/\psi\to \gamma \eta^\prime\pi^+\pi^-$, which was reported by the BESIII Collaboration, we carry out the study of the mass spectrum and decay ...
Li-Ming Wang +3 more
semanticscholar +1 more source
Mass dependence of pseudoscalar meson elastic form factors [PDF]
Physical Review D, 2018 A continuum approach to quark-antiquark bound-states is used to determine the electromagnetic form factors of pion-like mesons with masses $m_{0^-}/{\rm GeV}=0.14$, $0.47$, $0.69$, $0.83$ on a spacelike domain that extends to $Q^2 \lesssim 10\,$GeV$^2 ...
Muyang Chen +3 more
semanticscholar +1 more source
Poincaré-covariant quark model of electroweak light mesons decays [PDF]
EPJ Web of Conferences, 2019 The procedure for obtaining the radiative decay constants of pseudoscalar and vector unflavored mesons in point–form of Poincaré-invariant quantum mechanics is presented.
Andreev Viktor, Haurysh Vadzim
doaj +1 more source
Determining dominant partial waves in photoproduction via moment analysis [PDF]
EPJ Web of Conferences, 2020 Important insights into the excitation spectra of baryons are provided by measurements of polarization observables in reactions that involve particles with spin.
Wunderlich Yannick
doaj +1 more source
Finite size effect on pseudoscalar meson sector in 2+1 flavor QCD at the physical point [PDF]
Physical Review D, 2018 We investigate the finite size effect on pseudoscalar meson masses and decay constants using a subset of the "PACS10" configurations which are generated keeping the space-time volumes over (10 fm$)^4$ in 2+1 flavor QCD at the physical point.
K. Ishikawa +8 more
semanticscholar +1 more source