DECAY WIDTHS OF EXCITED HEAVY MESONS FROM QUANTUM CHROMODYNAMICS SUM-RULES IN THE INFINITE MASS LIMIT

Authors
DAI YB HUANG CS HUANG MQ JIN HY LIU C
Citation
Yb. Dai et al., DECAY WIDTHS OF EXCITED HEAVY MESONS FROM QUANTUM CHROMODYNAMICS SUM-RULES IN THE INFINITE MASS LIMIT, Chinese Physics Letters, 15(8), 1998, pp. 558-560
Citations number
8
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
15
Issue
8
Year of publication
1998
Pages
558 - 560
Database
ISI
SICI code
0256-307X(1998)15:8<558:DWOEHM>2.0.ZU;2-H
Abstract
The widths for pionic decays of the lowest two excited doublets (0(+), 1(+)) and (1(+), 2(+)) of heavy mesons are studied with quantum Chrom odynamics sum rules in the heavy quark effective theory. The interpola ting currents used allow us to distinguish the two 1(+) states without contamination in the infinite mass Limit. The soft pion approximation is not used in the calculations.