The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which relies mostly on the vertex detector. Additional information, such as the mass of particles associated to a secondary vertex, significantly improves the selection efficiency and the background suppression. The paper describes various discriminating variables used for the tagging and the procedure of their combination. In addition, applications of b-tagging to some physics analyses, which depend crucially on the performance and reliability of b-tagging, are described briefly.

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). b-tagging in DELPHI at LEP. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 32(2), 185-208 [10.1140/epjc/s2003-01441-8].

b-tagging in DELPHI at LEP

CALVI, MARTA;PAGANONI, MARCO;TABARELLI DE FATIS, TOMMASO;
2004

Abstract

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which relies mostly on the vertex detector. Additional information, such as the mass of particles associated to a secondary vertex, significantly improves the selection efficiency and the background suppression. The paper describes various discriminating variables used for the tagging and the procedure of their combination. In addition, applications of b-tagging to some physics analyses, which depend crucially on the performance and reliability of b-tagging, are described briefly.
Si
Articolo in rivista - Articolo scientifico
Scientifica
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
185
208
24
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). b-tagging in DELPHI at LEP. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 32(2), 185-208 [10.1140/epjc/s2003-01441-8].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/155923
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