منابع مشابه
Strategies for b-Tagging Calibration using data at CMS
In experimental high energy physics, the capability to tag jets produced from bottom (b) quarks has become a necessity. Many Standard Model and new physics processes have a b-jet signature, including top quarks, the Higgs boson, and supersymmetry. Algorithms used to identify b-jets utilize either the lifetime of b-hadrons, or the large rate of decay to leptons, compared to hadrons from charm (c...
متن کاملAlgorithms for b-Jet Identification at CMS
A comprehensive set of algorithms to identify jets originating from b-quarks has been developed within the CMS Collaboration. The fundamental properties of B-hadrons leading to observables which can be exploited for b-tagging are discussed and an overview of the basic concepts of the algorithms is given, followed by a comparison of their performance.
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We present here a study of the transverse granularity required for tagging jets detection and reconstruction over the expected pileup background, in the CMS Quartz Fibres Forward Calorimeters, HF. Background suppression and jet finding are achieved by an eta independent Et cut on single towers. Granularities in terms of Delta(x), Delta(y) towers are considered.
متن کاملIdentification of b-quark jets with the CMS experiment
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 abse...
متن کاملSuite B Profile of Certificate Management over CMS
The United States government has published guidelines for "NSA Suite B Cryptography", which defines cryptographic algorithm policy for national security applications. This document specifies a profile of the Certificate Management over CMS (CMC) protocol for managing Suite B X.509 public key certificates. This profile is a refinement of RFCs 5272, 5273, and 5274. Status of This Memo This docume...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/110/9/092033