| Issue |
EPJ Web of Conferences
Volume 28, 2012
Hadron Collider Physics Symposium, 2011
|
|
|---|---|---|
| Article Number | 12055 | |
| Number of page(s) | 3 | |
| Section | Poster Session | |
| DOI | https://doi.org/10.1051/epjconf/20122812055 | |
| Published online | 06 June 2012 | |
https://doi.org/10.1051/epjconf/20122812055
B-tagging at CMS
IPHC Strasbourg
a e-mail: Cristina.Ferro@cern.ch
The identification of b jets is a crucial issue to study and characterize various channels like top quark events and many new physics scenarios. Different b-tagging techniques are defined in CMS which benefit from the long life time, high mass and large momentum fraction of the b-hadron produced in b-quark jet. Efficient algorithms have been developed based on the measure of b-hadron secondary vertex or on tracks with a large impact parameter. Data collected in pp collisions at √s = 7 TeV in 2011 are used to estimate both the b-tagging efficiency and the mistag rate from light flavor jets.
© Owned by the authors, published by EDP Sciences, 2012
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