Semi-leptonic form-factors from lattice qcd
| dc.creator | Bhattacharya, Tanmoy | |
| dc.creator | Gupta, Rajan | |
| dc.date | 1994-09-12 | |
| dc.date.accessioned | 2026-07-07T03:57:06Z | |
| dc.date.available | 2026-07-07T03:57:06Z | |
| dc.description | We present results for semi-leptonic form-factors obtained on a statistical sample of $66$ $32^3 \times 64$ lattices at $β= 6.0$ using quenched Wilson fermions. We find $f_+^{D \to K l ν}(q^2 = 0) = 0.73 \pm 0.06$, $A_2/A_1({D \to K^* l ν}) = 0.72 \pm 0.22$, $V/A_1({D_s \to ϕl ν}) = 1.91 \pm 0.04$, and $A_2/A_1({D_s \to ϕl ν}) = 0.68 \pm 0.09$, where the error estimate includes statistical errors and errors due to extrapolation to $q^2 =0$ and to physical values of $(m_u + m_d)/2$ and $m_s$. The remaining sources of systematic errors are those due to $O(a)$ discretization errors and those due to quenching, which our results indicate may be small. We also comment on the validity of pole-dominance in these form-factors. Source available from http://nqcd.lanl.gov/Lattice_QCD/papers/dpf94/ | |
| dc.description | This self contained PS file is based on the talk by R. Gupta at DPF94. Los Alamos Preprint Number LAUR-94-3079 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9409284 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9409284 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/45270 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Semi-leptonic form-factors from lattice qcd | |
| dc.type | text |