| DATE: |
2008-02-15 14:00 - 15:00 |
| PLACE: |
Kenkyu Honkan Rm.321 |
| TITLE: |
Relativistic corrections to the heavy quark potential from lattice QCD |
| CONTACT: |
tsuda |
| SPEAKER: |
Mr. Yoshiaki Koma (Numazu National College of Technology) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
Heavy quarknia, bound states of a heavy quark and antiquark, offer a unique opportunity to gain an understanding of nonperturbative QCD. A possible way of studying such systems systematically in QCD is to employ (potential) nonrelativistic QCD, which provides the static inter-quark potential as the leading order contribution, followed by relativistic corrections in powers of 1/m with quark mass m. The various properties of heavy quarkonium can be extracted by solving the Schroedinger equation with these potentials. We present our recent numerical results of the relativistic corrections to the static potential obtained by using lattice QCD Monte Carlo simulations, which include the potential at O(1/m) as well as the spin- and velocity- dependent potentials at O(1/m^2).
References:
Y. Koma, M. Koma, and H. Wittig,
Phys. Rev. Lett. 97 (2006) 122003-(1--4). (hep-lat/0607009)
Y. Koma and M. Koma,
Nucl. Phys. B769 (2007) 79--107. (hep-lat/0609078)
Y. Koma, M. Koma, and H. Wittig,
Proc. Sci. LAT2007 (2007) 111-(1--10). (0711.2322[hep-lat])
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