CERN-EP-98-180 - Search Results - CERN Document Server

Search collections:

Sort by:	Display results:	Output format:

CERN Document Server	1 records found	Search took 0.65 seconds.

A precise measurement of the partial decay width ratio $R_{b}^{0} = \Gamma_{b\overline{b}}/\Gamma_{had}$ / DELPHI Collaboration
The partial decay width of the Z to $\bb$ quark pairs has beenmeasured by the DELPHI detector at LEP using data taken in the years1992 to 1995.Decays of b-hadrons were tagged by several methods usingtracks with large impact parameters and/or reconstructed secondary vertices, complemented by event shape variables.Combining these methods in a multivariate analysis the value\[\frac{\Gamma({\mathrm Z \rightarrow \bb}) }{ \Gamma({\mathrm {Z \rightarrow had}}) } = 0.21634 \pm 0.00067({\mathrm {stat}}) \pm 0.00060 ({\mathrm {syst}})\]was obtained, where the ${\mathrm c} \bar {\mathrm c}$ production fractionwas fixed to its Standard Model value..
CERN-EP-98-180.- Geneva : CERN, 1999 - 47 p. - Published in : Eur. Phys. J. C 10 (1999) 415-42 Fulltext: PDF; - CERN library copies

Detailed record - Similar records

Interested in being notified about new results for this query?
Set up a personal email alert or subscribe to the RSS feed.

Haven't found what you were looking for? Try your search on other servers:
CERN-EP-98-180 in Amazon CERN-EP-98-180 in CERN EDMS CERN-EP-98-180 in CERN Intranet CERN-EP-98-180 in CiteSeer CERN-EP-98-180 in Google Books CERN-EP-98-180 in Google Scholar CERN-EP-98-180 in Google Web CERN-EP-98-180 in IEC	CERN-EP-98-180 in IHS CERN-EP-98-180 in INSPIRE CERN-EP-98-180 in ISO CERN-EP-98-180 in KISS Books/Journals CERN-EP-98-180 in KISS Preprints CERN-EP-98-180 in NEBIS CERN-EP-98-180 in SLAC Library Catalog CERN-EP-98-180 in Scirus

CERN Document Server

Access articles, reports and multimedia content in HEP

Main menu

CERN Accelerating science