Axial couplings of heavy hadrons from domain-wall lattice QCD
Conference
·
· PoS(Lattice 2011)
OSTI ID:1043048
We calculate matrix elements of the axial current for static-light mesons and baryons in lattice QCD with dynamical domain wall fermions. We use partially quenched heavy hadron chiral perturbation theory in a finite volume to extract the axial couplings g{sub 1}, g{sub 2}, and g{sub 3} from the data. These axial couplings allow the prediction of strong decay rates and enter chiral extrapolations of most lattice results in the b sector. Our calculations are performed with two lattice spacings and with pion masses down to 227 MeV.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1043048
- Report Number(s):
- JLAB-THY-12-1549; DOE/OR/23177-2188
- Conference Information:
- Journal Name: PoS(Lattice 2011)
- Country of Publication:
- United States
- Language:
- English
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