Results 71 to 80 of about 1,708,127 (184)

Vector mesons in nuclear medium [PDF]

open access: yesNuclear Physics A, 1995
We summarize the current theoretical and experimental status of the spectral change of the vector mesons in dense matter.
Hiroyuki Shiomi, Tetsuo Hatsuda
openaire   +3 more sources

Magnetic structure of vector mesons in lattice QCD

open access: yesEPJ Web of Conferences, 2018
We have explored the response of the charged vector mesons on the external magnetic field. The g-factor of the charged vector ρ and K* mesons has been found.
Luschevskaya E.V.   +3 more
doaj   +1 more source

The contribution of axial-vector mesons to hyperfine structure of muonic hydrogen

open access: yesPhysics Letters B, 2018
The contribution from the axial-vector meson exchange to the potential of the muon–proton interaction in muonic hydrogen induced by anomalous axial-vector meson coupling to two photon state is calculated.
A.E. Dorokhov   +4 more
doaj   +1 more source

η′ → π0γγ and ��′ → ηγγ: a primer analysis

open access: yesEPJ Web of Conferences, 2012
The electromagnetic rare decays η′ → π0γγ and η′ → π0γγ are analysed for the first time and their predicted branching ratios given. The vector meson exchange dominant contribution is treated using Vector Meson Dominance and the scalar component is ...
Escribano Rafel
doaj   +1 more source

Decay constants and form factors of s-wave and p-wave mesons in the covariant light-front quark model [PDF]

open access: yes, 2011
We reanalyze the decay constants of s-wave and p-wave mesons and D, B ->M form factors, where M represents a pseudoscalar meson, a vector meson, a scalar meson, or an axial vector meson within a covariant light-front quark model. The parameter \beta for wave-functions of most of s-wave mesons and of a few axial-vector mesons are fixed with latest ...
arxiv   +1 more source

First characterization of the scattering length distribution of vector meson interaction with deuteron [PDF]

open access: yesarXiv, 2023
Under the framework of the vector meson dominance model (VMD), the absolute scattering lengths of light vector mesons ($\phi$, $\omega$, and $\rho$) with the deuteron are calculated from the cross sections of vector meson photoproduction off a deuteron.
arxiv  

Multipole Moments of Heavy Vector and Axial-Vector Mesons in QCD [PDF]

open access: yesPhys. Rev. D 101, 054009 (2020), 2019
The magnetic and quadrupole moments of the vector and axial-vector mesons containing heavy quark are estimated within the light cone sum rules method. Our predictions on magnetic moments for the vector mesons are compared with the results obtained by other approaches.
arxiv   +1 more source

Branching ratios of $B_c$ Meson Decaying to Vector and Axial-Vector Mesons [PDF]

open access: yesPhys Rev D 87, 034004 (2013), 2012
We investigate the weak decays of $B_c$ mesons in Cabibbo-Kobayashi-Maskawa favored and suppressed modes. We present a detailed analysis of the $B_c$ meson decaying to vector meson (V) and axial-vector meson (A) in the final state. We also give the form factors involving $B_c \to A$ transition in the Isgur-Scora-Grinstein-Wise II framework and ...
arxiv   +1 more source

Transversity in exclusive vector-meson leptoproduction [PDF]

open access: yes, 2013
The role of transversity or helicity-flip generalized parton distributions (GPDs) in leptoproduction of vector mesons is investigated within the framework of the handbag approach.
S. Goloskokov, P. Kroll
semanticscholar   +1 more source

Self-consistent covariant description of vector meson decay constants and chirality-even quark-antiquark distribution amplitudes up to twist-3 in the light-front quark model [PDF]

open access: yes, 2013
Although the meson decay amplitude described by a two-point function may be regarded as one of the simplest possible physical observables, it is interesting that this apparently simple amplitude bears abundant fundamental information on QCD vacuum ...
H. Choi, C. Ji
semanticscholar   +1 more source

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