20–22 Mar 2017
CERN
Europe/Zurich timezone
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Inclusive tagging of B-flavour at LHCb [Vidyo]

21 Mar 2017, 11:55
20m
222/R-001 (CERN)

222/R-001

CERN

Note: MAIN AUDITORIUM for the opening session Monday morning
200
Show room on map

Speaker

Aleksei Rogozhnikov (Yandex School of Data Analysis (RU))

Description

One of the most important procedure needed for the study of CP violation in Beauty sector is the tagging of the flavour of neutral B-mesons at production. The harsh environment of the Large Hadron Collider makes it particularly hard to succeed in this task. We present a proposal to upgrade current flavour tagging strategy in LHCb experiment. This strategy consists of inclusive tagging ensemble methods (i.e: the use inclusive information about the event without a firm selection rule), which are combined using a probabilistic model for each event. The probabilistic model uses all reconstructed tracks and secondary vertices to obtain well-determined probability of B flavour at production. Such approach reduces the dependence on the performance of lower level identification capacities and thus has the potential to increase the overall performance.

Presentation materials