摘要
The widths for pionic decays of the lowest two excited doublets(0^(+),1^(+))and(1^(+),2^(+))of heavy mesons are studied with quantum Chromodynamics sum rules in the heavy quark effective theory.The interpolating 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.
作者
戴元本
黄朝商
黄明球
金洪英
刘纯
DAI Yuan-ben;HUANG Chao-shang;HUANG Ming-qiu;JIN Hong-ying;LIU Chun(Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039;Center for Theoretical Physics,Seoul National University,Seoul,151-742)
基金
Supported by the National Natural Science Foundation of China under Grant No.19335043.
