21-27 March 2009
Europe/Prague timezone

An overview of the b-Tagging algorithms in the CMS Offline software

26 Mar 2009, 15:00
Club E (Prague)

Club E


Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
oral Event Processing Event Processing


Dr Andrea Bocci (Università and INFN, Pisa)


The CMS offline software contains a widespread set of algorithms to identify jets originating from the weak decay of b-quarks. Different physical properties of b-hadron decays like lifetime information, secondary vertices and soft leptons are exploited. The variety of selection algorithms range from simple and robust ones, suitable for early data-taking and online environments such as the trigger system, to highly discriminating ones, exploiting all the information available. For the latter, a generic discriminator computing framework has been developed that allows to exploit the full power of multi-variate analysis techniques in an flexible way.

Primary author

Dr Andrea Bocci (Università and INFN, Pisa)

Presentation Materials