|
Title
|
|
|
|
A measurement of the branching fractions of the b-quark into charged and neutral b-hadrons
|
|
|
Author
|
|
|
|
|
|
|
Institution/Organisation
|
|
|
|
DELPHI Collaboration
|
|
|
Abstract
|
|
|
|
| The production fractions of charged and neutral b-hadrons in b-quark events from Z(0) decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural network, to estimate the charge of the weakly-decaying b-hadron by distinguishing its decay products from particles produced at the primary vertex. From the data taken in the years 1994 and 1995, the fraction of (b) over bar -quarks fragmenting into positively charged weakly-decaying b-hadrons has been measured to be: f(+) = (42.09+/-0.82(stat)+/-0.89(syst))%. Subtracting the rates for charged Xi(b)(+) and Omega(b)(+) baryons gives the production fraction of B+ mesons: f(Bu) = (40.99+/-0.82(stat)+/-1.11 (syst)) %. (C) 2003 Elsevier B.V. All rights reserved. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Physics letters : B. - Amsterdam, 1967, currens
|
|
|
Publication
|
|
|
|
Amsterdam
:
North-Holland
,
2003
|
|
|
ISSN
|
|
|
|
0370-2693
|
|
|
DOI
|
|
|
|
10.1016/J.PHYSLETB.2003.09.070
|
|
|
Volume/pages
|
|
|
|
576
:1-2
(2003)
, p. 29-42
|
|
|
ISI
|
|
|
|
000186824500005
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|
|
Full text (publisher's version - intranet only)
|
|
|
|
|
|