Hopping Parameter Analysis of Leptonic and Semi-Leptonic Heavy-Light Decays
D. S. Henty
Abstract
We study leptonic and semi-leptonic decays of D and B mesons. Use of the Hopping Parameter Expansion (HPE) for two-point functions allows us continuously to vary the pseudoscalar mass from below mD up towards mB. We compute the pseudoscalar decay constants fD and fB, and observe consistency with the value calculated in the static limit. From the measurement of three-point functions we compute the matrix element relevant to the decay B -> D l nul and extract the Isgur-Wise function xi(v.v'). The HPE enables us freely to vary the initial state pseudoscalar mass at constant v.v', and we investigate the 1/mQ corrections to the heavy-quark limit.
Create a lesson
Related papers
Efficient Quantum Simulations of Yang-Mills theory with Maximal-tree Gauge
Tianyin Li, Ying-Ying Li, Xiaoyang Wang et al.
Physics-informed quantum algorithms for glueball-like excitations in a Z2 lattice gauge theory
Dan-Bo Zhang
Anomalous behavior of Wilson fermions in the presence of monopoles
Manuel Cortina, Rajamani Narayanan, Ray Romero
Direct lattice QCD calculation of the θ-induced CP-violating pion-nucleon coupling
Chuan-Yang Li, Jun Hua, Jian Liang et al.
Calculation of neutron electric dipole moment from Lattice QCD
Thomas Blum, Fangcheng He, Taku Izubuchi et al.
Exponential-in-Nc2 cost reduction of product-formula-based quantum simulations of quantum chromodynamics
Zohreh Davoudi, Jesse R. Stryker