Journal article
Measurement of Rb Using a Vertex Mass Tag
Abstract
We report a new measurement of Rb=ΓZ0→bb¯/ΓZ0→hadrons using a double tag technique, where the b hemisphere selection is based on the reconstructed mass of the B hadron decay vertex. The measurement was performed using a sample of 130×103 hadronic Z0 events, collected with the SLD detector at SLC. The method utilizes the 3D vertexing abilities of the CCD pixel vertex detector and the small stable SLC beams to obtain a high b-tagging efficiency …
Authors
Abe K; Abe K; Akagi T; Allen NJ; Ash WW; Aston D; Baird KG; Baltay C; Band HR; Barakat MB
Journal
Physical Review Letters, Vol. 80, No. 4, pp. 660–665
Publisher
American Physical Society (APS)
Publication Date
January 26, 1998
DOI
10.1103/physrevlett.80.660
ISSN
0031-9007