skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A Preliminary Measurement of Rc Using the SLD Detector

Abstract

We report a new measurement of R{sub c} using data obtained with the SLD detector in 1993-1996. This measurement uses a double tag technique, where the selection of a c hemisphere is based on the reconstructed mass of the charm hadron decay vertex. The method utilizes the 3D vertexing capabilities of SLD's CCD vertex detectors and the small and stable SLC beams to obtain a high c-tagging efficiency and purity of 14% and 68%, respectively. We obtain a preliminary combined 93-96 result of R{sub c} = 0.181 {+-} 0.012{sub stat.} {+-} 0.008{sub syst.}.

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
826627
Report Number(s):
SLAC-PUB-7594
TRN: US0403483
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 28 Jan 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DECAY; EFFICIENCY; HADRONS

Citation Formats

Abe, K. A Preliminary Measurement of Rc Using the SLD Detector. United States: N. p., 2004. Web. doi:10.2172/826627.
Abe, K. A Preliminary Measurement of Rc Using the SLD Detector. United States. https://doi.org/10.2172/826627
Abe, K. 2004. "A Preliminary Measurement of Rc Using the SLD Detector". United States. https://doi.org/10.2172/826627. https://www.osti.gov/servlets/purl/826627.
@article{osti_826627,
title = {A Preliminary Measurement of Rc Using the SLD Detector},
author = {Abe, K},
abstractNote = {We report a new measurement of R{sub c} using data obtained with the SLD detector in 1993-1996. This measurement uses a double tag technique, where the selection of a c hemisphere is based on the reconstructed mass of the charm hadron decay vertex. The method utilizes the 3D vertexing capabilities of SLD's CCD vertex detectors and the small and stable SLC beams to obtain a high c-tagging efficiency and purity of 14% and 68%, respectively. We obtain a preliminary combined 93-96 result of R{sub c} = 0.181 {+-} 0.012{sub stat.} {+-} 0.008{sub syst.}.},
doi = {10.2172/826627},
url = {https://www.osti.gov/biblio/826627}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 28 00:00:00 EST 2004},
month = {Wed Jan 28 00:00:00 EST 2004}
}