- name
- Somasundaram Arunagiri
- refid
- 9062
- email
- munphys@imsc.ernet.in
- title
- On the short distance nonperturbative corrections in heavy quark expansion
- collaboration
- abstract
- Assuming large gluon mass which represents the ultraviolet renormalons
corrections, the heavy-light systems are studied in the QCD sum rules approach.
It is noted that these corrections to the perturbative part of the heavy quark
expansion would shed light on the lifetime difference between the beauty meson and baryon. The HQE prediction of lifetime of b-baryon is discussed.