Rb measurements at centre-of-mass energy above the Z pole at LEP

Authors
Citation
G. Ruggiero, Rb measurements at centre-of-mass energy above the Z pole at LEP, NUCL PH B-P, 93, 2001, pp. 87-90
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
0920-5632 → ACNP
Volume
93
Year of publication
2001
Pages
87 - 90
Database
ISI
SICI code
0920-5632(200103)93:<87:RMACEA>2.0.ZU;2-3
Abstract
The measurements of R-b = sigma (e(+)e(-) --> b (b) over bar)/sigma (e(+)e( -) --> q (q) over bar) at centre-of-mass energies above the Z pole using da ta collected by the LEP experiments from 1995 to 1999 are summarised. The m easurements are performed using b-tagging methods that exploit the relative ly large decay length of b hadrons. A preliminary combination of the Rb mea surements is also presented.