Speaker
Dick Greenwood Jr
(Louisiana Tech University (US))
Description
The ATLAS detector at the LHC is collecting - among others -
a large statistics of Lambda_b decays, allowing the study of
production, decay modes and decay properties of this b-flavored
hadron. This statistics is what allowed one of the most precise
measurements of the Lambda_b lifetime. We will review ATLAS' latest
results on the decay properties of this baryon, including new decay
modes and measurement of the parity violating asymmetry parameter
alpha_b in Lambda_b -> Lambda J/psi obtained from the study of angular
correlations in the p pi- mu+ mu- final state. The measurement is
compared to predictions based on perturbative QCD and heavy quarks
effective theory.
Author
Dick Greenwood Jr
(Louisiana Tech University (US))
