Abstract
We calculate the Isgur-Wise function on the lattice, simulating the light quark with the Wilson action and the heavy quark with a direct lattice implementation of the heavy-quark effective theory. Improved smearing functions produced by a variational technique, MOST, are used to reduce the statistical errors and to minimize excited-state contamination of the ground-state signal. Calculating the required matching factors, we obtain ξ′ (1) = -0.64(13) for the slope of the Isgur-Wise function in continuum-HQET in the MS scheme at a scale of 4.0 GeV.
| Original language | English |
|---|---|
| Pages (from-to) | 377-379 |
| Number of pages | 3 |
| Journal | Nuclear Physics B - Proceedings Supplements |
| Volume | 63 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Apr 1998 |
Bibliographical note
Funding Information:*Presented by J. Christensen at Lattice '97, Edinburgh, Scotland. tCurrently at Department of Physics, University of Utah, Salt Lake City, UT 84112. tThis work is supported in part by the U.S. Department of Energy under grant numbers DE-FG05-84ER40154 and DE-FC02-91ER75661, and by the University of Kentucky (;enter for Computational Sciences. The computations were carried out at NERSC.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics