Results 111 to 120 of about 27,828 (268)

Bethe-Salpeter equation at leading order in Coulomb gauge

, 2012
The Bethe-Salpeter equation and leptonic decay constants for pseudoscalar and vector quark-antiquark mesons with arbitrary quark masses are studied in Coulomb gauge, under a leading order truncation.
Reinhardt, Hugo, Watson, Peter
core   +1 more source

Direct CP Violation from Isospin Symmetry Breaking Effects for the Decay Process B-s→P(V)π0 in PQCD

Advances in High Energy Physics, 2019
We investigate the direct CP violation for the decay process of B-s→P(V)π0 (P,V refer to the pseudoscalar meson and vector meson, resp.) via isospin symmetry breaking effects from the π0-η-η′ mixing mechanism in PQCD factorization approach.
Gang Lü, Qin-Qin Zhi
doaj   +1 more source

Weak decays of $$B_c$$ Bc into two hadrons under flavor SU(3) symmetry

European Physical Journal C: Particles and Fields, 2018
A large number of $$B_c$$ Bc meson events have been recorded at the LHCb detector, especially some two-body hadronic decay modes. We analyzed the weak decays of the $$B_c$$ Bc meson into two hadron states under the flavor SU(3) symmetry.
Ruilin Zhu, Xin-Ling Han, Yan Ma, Zhen-Jun Xiao   +3 more
doaj   +1 more source

Study of the interactions of the axion with mesons and photons using a chiral effective Lagrangian model

European Physical Journal C: Particles and Fields, 2020
We investigate the most interesting decay processes involving axions, photons and the lightest pseudoscalar mesons, making use of a chiral effective Lagrangian model with $$L=3$$ L=3 light quark flavors, which also includes the flavor-singlet ...
Giacomo Landini, Enrico Meggiolaro
doaj   +1 more source

Coupling constants and transition potentials for hadronic decay modes of a meson

, 2006
Within the independent-harmonic-oscillator model for quarks inside a hadron, a rigorous method is presented for the calculation of coupling constants and transition potentials for hadronic decay, as needed in a multi-channel description of mesons.Comment:
A. Yaouanc Le, C. Dullemond, E. Beveren, E. Beveren van, E. Beveren van, E. Beveren van, E. Beveren van, E. Eichten, H.M. Pilkuhn, L. Micu, M. Chaichian, S. Jacobs   +11 more
core   +1 more source

THE TRANSITION OF VIRTUAL PHOTONS INTO PSEUDOSCALAR MESONS [PDF]

Photon 2001, 2002
4 pages, 1 figure (using LATEX with ws-p8-50x6-00.cls), talk presented at the International Conference on the Structure and Interactions of the Photon (PHOTON2001), Ascona, September ...
openaire   +2 more sources

Lattice calculations of meson correlators and spectral functions at finite temperature

, 2003
I review recent progress in relating meson spectral function to imaginary time correlation function at finite temperature calculated on isotropic as well as on anisotropic lattices.
Asakawa M, Asakawa Y Hatsuda T Nakahara Y, Bernard C, Bietenholz W, Born K D, Datta S, De Forcrand Ph (QCD-TARO Collaboration), DeGrand T A, DeTar C E, Digal S, Digal S Fortunato S Petreczky P, Gavai R, Gavai R V, Gavai R V, Gupta S, Kaczmarek O, Karsch F, Karsch F, Karsch F, Karsch F, Karsch F, Laermann E, Le Bellac M, Lepage G P, Linde A, Lüscher M, Nakahara Y, Péter Petreczky, Rapp R, Rapp R Grandchamp L, Umeda T, Umeda T Nomura K Matsufuru H, Wetzorke I, Wetzorke I, Yamazaki T, Zantow F   +35 more
core   +1 more source

On the absorption and production cross sections of $K$ and $K^*$ [PDF]

, 2017
We have computed the isospin and spin averaged cross sections of the processes $\pi K^*\to \rho K$ and $\rho K^*\to \pi K$, which are crucial in the determination of the abundances of $K^*$ and $K$ in heavy ion collisions. Improving previous calculations,
Abreu, L. M., Khemchandani, K. P., Navarra, F. S., Nielsen, M., Torres, A. Martinez   +4 more
core   +4 more sources

Meson Screening Masses in Thermal QCD

EPJ Web of Conferences, 2012
The quark-gluon plasma (QGP) excitations, corresponding to the scalar and pseudoscalar meson quantum numbers, for different temperatures are calculated.
Czerski Piotr
doaj   +1 more source

B0 and Bs0 decays into J/ψ f0(980) and J/ψ f0(500) and the nature of the scalar resonances

Physics Letters B, 2014
We describe the B0 and Bs0 decays into J/ψ f0(500) and J/ψ f0(980) by taking into account the dominant process for the weak decay of B0 and Bs0 into J/ψ and a qq¯ component.
W.H. Liang, E. Oset
doaj   +1 more source