Identification of b-quark jets with the CMS experiment
| dc.contributor.author | CMS Collaboration | |
| dc.contributor.author | Ciftci | |
| dc.contributor.author | R. | |
| dc.date.accessioned | 2019-10-27T08:00:29Z | |
| dc.date.available | 2019-10-27T08:00:29Z | |
| dc.date.issued | 2013 | |
| dc.department | Ege Üniversitesi | en_US |
| dc.description.abstract | At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by CMS to select b-quark jets based on variables such as the impact parameters of charged-particle tracks, the properties of reconstructed decay vertices, and the presence or absence of a lepton, or combinations thereof. The performance of these algorithms has been measured using data from proton-proton collisions at the LHC and compared with expectations based on simulation. The data used in this study were recorded in 2011 at s = 7 TeV for a total integrated luminosity of 5.0 fb-1. The efficiency for tagging b-quark jets has been measured in events from multijet and t-quark pair production. CMS has achieved a b-jet tagging efficiency of 85% for a light-parton misidentification probability of 10% in multijet events. For analyses requiring higher purity, a misidentification probability of only 1.5% has been achieved, for a 70% b-jet tagging efficiency. © 2013 IOP Publishing Ltd and Sissa Medialab srl. | en_US |
| dc.identifier.doi | 10.1088/1748-0221/8/04/P04013 | |
| dc.identifier.issn | 1748-0221 | |
| dc.identifier.issn | 1748-0221 | en_US |
| dc.identifier.issue | 4 | en_US |
| dc.identifier.scopusquality | Q2 | en_US |
| dc.identifier.uri | https://doi.org/10.1088/1748-0221/8/04/P04013 | |
| dc.identifier.uri | https://hdl.handle.net/11454/24741 | |
| dc.identifier.volume | 8 | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Institute of Physics Publishing | en_US |
| dc.relation.ispartof | Journal of Instrumentation | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/closedAccess | en_US |
| dc.subject | Large detector-systems performance | en_US |
| dc.subject | Pattern recognition, cluster finding, calibration and fitting methods | en_US |
| dc.subject | Performance of High Energy Physics Detectors | en_US |
| dc.title | Identification of b-quark jets with the CMS experiment | en_US |
| dc.type | Article | en_US |
