1993/10/07 by Rajan Gupta, Gupta, Rajan, Tanmoy Bhattacharya +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.48550/arxiv.hep-lat/9310007
This PS file includes 7 tables and figures 1-5 on 39 pages
arxiv created 1993/10/07 · openalex publication_date 1993/10/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The form factors for the semileptonic decays of heavy-light pseudoscalar mesons of the type D → Keν are studied in quenched lattice QCD at β=6.0 using Wilson fermions. We explore new numerical techniques for improving the signal and study O(a) corrections using three different lattice transcriptions of the vector current. We present a detailed discussion of the relation of these lattice currents to the continuum vector current and show that the disagreement between the previous results is to a large extent due to the value of ZV used in the calculations. We also present results for the decay constants of light-light, heavy-light and heavy-heavy mesons.