Results 121 to 130 of about 27,698 (267)

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

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

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

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

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   +4 more sources

Study of the production mechanism of the eta meson by means of analysing power measurements

, 2006
Information about the production mechanism of the eta meson in proton-proton collisions can be inferred by confronting the experimental studies on the analysing power for the p(pol)p --> pp eta reaction with the theoretical predictions of this observable.
A. Budzanowski, A. Khoukaz, A. Täschner, B. Kamys, B. Lorentz, C. Piskor-Ignatowicz, Czyżykiewicz R., Czyżykiewicz R., D. Gil, D. Grzonka, E. Czerwiński, Fäldt G., H. Rohdjess, H.-H. Adam, J. Majewski, J. Przerwa, J. Ritman, J. Smyrski, K. Ulbrich, L. Jarczyk, M. Janusz, M. Siemaszko, M. Wolke, P. Klaja, P. Moskal, P. Winter, P. Wüstner, R. Czyżykiewicz, T. Rożek, T. Sefzick, W. Oelert, W. Zipper   +31 more
core   +1 more source

Branching fractions of semileptonic D and $$D_s$$ D s decays from the covariant light-front quark model

European Physical Journal C: Particles and Fields, 2017
Based on the predictions of the relevant form factors from the covariant light-front quark model, we show the branching fractions for the $$D (D_s) \rightarrow (P,\,S,\,V,\,A)\,\ell \nu _\ell $$ D ( D s ) → ( P , S , V , A ) ℓ ν ℓ ( $$\ell =e$$ ℓ = e or $
Hai-Yang Cheng, Xian-Wei Kang
doaj   +1 more source

Electromagnetic transitions in an effective chiral Lagrangian with the eta-prime and light vector mesons

, 2012
We consider the chiral Lagrangian with a nonet of Goldstone bosons and a nonet of light vector mesons. The mixing between the pseudoscalar mesons eta and eta-prime is taken into account. A novel counting scheme is suggested that is based on hadrogenesis,
A. Gasparyan, A. Krause, C. Degrande, C. Terschlüsen, C. Terschlüsen, D. Djukanovic, E. Witten, E. Witten, E.E. Jenkins, F. Klingl, G. Ecker, G. Ecker, G. Veneziano, G. ’t Hooft, H.W. Fearing, I.V. Danilkin, I.V. Danilkin, J. Bijnens, J. Gasser, J. Gasser, J. Iizuka, J.-M. Gerard, K. Kampf, K. Kampf, K. Nakamura, L. Ametller, L.G. Landsberg, M. Bando, M. Bando, M. Benayoun, M. Benayoun, M. F. M. Lutz, M. Harada, M.C. Birse, M.F.M. Lutz, M.F.M. Lutz, M.F.M. Lutz, M.F.M. Lutz, M.F.M. Lutz, M.F.M. Lutz, M.F.M. Lutz, M.N. Achasov, N. Beisert, P. Herrera-Siklody, P. Ruiz-Femenia, P.C. Bruns, R. Arnaldi, R. Escribano, R. Escribano, R. Kaiser, S. Leupold, S. Leupold, S. Okubo, S. Scherer, S. Weinberg, S. Weinberg, T. Ebertshäuser, T. Feldmann, T. Feldmann, U.G. Meissner, V. Cirigliano   +60 more
core   +1 more source