Form factors for decays on the lattice
نویسندگان
چکیده
منابع مشابه
Weak Form Factors for Heavy Meson Decays
We calculate the form factors for weak decays of B(s) and D(s) mesons to light pseudoscalar and vector mesons within a relativistic dispersion approach based on the constituent quark picture. This approach gives the form factors as relativistic double spectral representations in terms of the wave functions of the initial and final mesons. The form factors have the correct analytic properties an...
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We describe all the form factors for semileptonic and radiative B decays to the same light vector meson with just two parameters and the two form factors for semileptonic B decays to a light pseudoscalar meson with a further two or three parameters. This provides simple parametrizations of the form factors for the physical B̄ → ρlν̄l, B̄ → πlν̄l and B̄ → Kγ decays. The parametrizations are consisten...
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B decay phenomenology is a rapidly growing area of particle physics, as we expect that the precise measurements of various B meson decays provide rich information of the Standard Model and the physics beyond it. Following the successful CLEO, LEP and CDF experiments, the next generation B factories (BaBar and Belle) have just started operation, and other experimental projects will follow. Latti...
متن کاملForm Factors of Semileptonic M L3 Decays *
We study in detail the kinematics of semileptonic M l3 (M → M ′ lν) decay, considering only the new models preserving all the gauge symmetries of the Standard Model (SM), and assuming that neutrinos are massless and left-handed as in the SM. And we present a brief review of the recent theoretical progress on model independent constraints on the form factors of M l3 decays using dispersion relat...
متن کاملForm Factors in D Meson Decays
We study the dΓ/dq spectra and the branching fractions of the D meson exclusive semileptonic decays with the lepton mass effects into consideration. We investigate their sensitivity to form factor models, and find that the decays to a pseudoscalar meson and a lepton pair are sensitive to the property of the form factor F1(q ), and those to a vector meson and a lepton pair to the form factor A1(...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1995
ISSN: 0550-3213
DOI: 10.1016/0550-3213(95)00223-f