Results 141 to 150 of about 142,204 (303)

The light invisible boson in FCNC decays of B and $$B_c$$ B c mesons

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this paper, we study the FCNC decay processes of B and $$B_c$$ B c meson, in which one invisible particle is emitted. Both the spin-0 and spin-1 cases are considered.
Geng Li   +3 more
doaj   +1 more source

Chiral Structure of Scalar and Pseudoscalar Mesons [PDF]

open access: yesAdvances in High Energy Physics, 2013
45 pages, 7 figures, 7 tables, to appear in Advances in High Energy ...
openaire   +4 more sources

Electromagnetic Transition Form Factors of Mesons

open access: yes, 2011
Using a counting scheme which treats pseudoscalar and vector mesons on equal footing, the decays of the narrow light vector mesons omega and phi into a dilepton and a pseudoscalar pi-meson or eta-meson, respectively, are calculated. Thereby, all required
Achasov   +10 more
core   +1 more source

Effective masses of diquarks [PDF]

open access: yes, 2002
We study meson and diquark bound states using the rainbow-ladder truncation of QCD's Dyson-Schwinger equations. The infrared strength of the rainbow-ladder kernel is described by two parameters.
Maris, P.
core   +2 more sources

Categorizing resonances X(1835), X(2120) and X(2370) in the pseudoscalar meson family [PDF]

open access: yes, 2011
Inspired by the newly observed three resonances X(1835), X(2120), and X(2370), in this work we systematically study the two-body strong decays and double pion decays of {eta}(1295)/{eta}(1475), {eta}(1760)/X(1835), and X(2120)/X(2370) by categorizing ...
Jie-Sheng Yu   +3 more
semanticscholar   +1 more source

Decay of the pseudoscalar glueball and its first excited state into scalar and pseudoscalar mesons and their first excited states [PDF]

open access: yesPhys. Rev. D 100, 096007 (2019), 2019
We expand the study of the pseudoscalar glueball and its first excited state by constructing an interaction Lagrangian which produces the two- and three-body decays of the pseudoscalar glueball, $J^{PC}=0^{-+}$, into the (pseudo)scalar and the excited (pseudo)scalar mesons as well as by constructing other two different chiral Lagrangians which describe
arxiv   +1 more source

Scaling test of quenched Wilson twisted mass QCD at maximal twist

open access: yes, 2005
We present the results of an extended scaling test of quenched Wilson twisted mass QCD. We fix the twist angle by using two definitions of the critical mass, the first obtained by requiring the vanishing of the pseudoscalar meson mass m_PS for standard ...
Jansen, K.   +4 more
core   +1 more source

Constraints on the Light Pseudoscalar Meson Distribution Amplitudes from Their Meson-Photon Transition Form Factors [PDF]

open access: yes, 2011
The meson-photon transition form factors {gamma}{gamma}*{yields}P (P stands for {pi}, {eta} and {eta}') provide strong constraints on the distribution amplitudes of the pseudoscalar mesons.
Xing-Gang Wu, Tao Huang
semanticscholar   +1 more source

Charge form factors of pseudoscalar mesons [PDF]

open access: yesPhysical Review D, 1994
18 pages, ReVTeX, 6 figures included, SLAC-PUB ...
openaire   +3 more sources

Relics of Supersymmetry in Ordinary 1-flavor QCD: Hairpin Diagrams and Scalar-Pseudoscalar Degeneracy [PDF]

open access: yes, 2007
The large-$N_c$ orientifold planar equivalence between $\mathcal{N}=1$ SUSY Yang-Mills theory and ordinary 1-flavor QCD suggests that low-energy quark-gluon dynamics in QCD should be constrained by the supersymmetry of the parent theory.
Keith-Hynes, Patrick, Thacker, H. B.
core   +2 more sources

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