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Title: First Physics Results at Babar

Abstract

The BABAR detector, which operates at the SLAC PEP-II asymmetric e{sup +}e{sup -} collider at energies near the {Upsilon} (4S) resonance, started operation on the 26th of May 1999. They present the first study of sin2{beta}, with samples of B{sup 0} {yields} J/{psi} K{sub s}{sup 0} and B{sup 0} {yields} {psi}(2S) K{sub s}{sup 0} decays, using 9.0 fb{sup -1} of data recorded between January and July 2000 at the {Upsilon}(4S) resonance and 0.8 fb{sup -1} recorded 40 MeV below the {Upsilon}(4S) resonance. A preliminary result of sin2{beta} = 0.12 {+-} 0.37(stat) {+-} 0.09(syst) was obtained. Details of the analysis are given. Moreover, they present measurements of charged and neutral B meson lifetimes and B{sup 0}{bar B}{sup 0} oscillation frequency.

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
784796
Report Number(s):
SLAC-PUB-8727
TRN: US0108610
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Dec 2000
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B NEUTRAL MESONS; OSCILLATIONS; RESONANCE; PEP STORAGE RINGS; RADIATION DETECTORS; ELECTRON-POSITRON COLLISIONS; VECTOR MESONS

Citation Formats

Lodovico, Francesca. First Physics Results at Babar. United States: N. p., 2000. Web. doi:10.2172/784796.
Lodovico, Francesca. First Physics Results at Babar. United States. https://doi.org/10.2172/784796
Lodovico, Francesca. 2000. "First Physics Results at Babar". United States. https://doi.org/10.2172/784796. https://www.osti.gov/servlets/purl/784796.
@article{osti_784796,
title = {First Physics Results at Babar},
author = {Lodovico, Francesca},
abstractNote = {The BABAR detector, which operates at the SLAC PEP-II asymmetric e{sup +}e{sup -} collider at energies near the {Upsilon} (4S) resonance, started operation on the 26th of May 1999. They present the first study of sin2{beta}, with samples of B{sup 0} {yields} J/{psi} K{sub s}{sup 0} and B{sup 0} {yields} {psi}(2S) K{sub s}{sup 0} decays, using 9.0 fb{sup -1} of data recorded between January and July 2000 at the {Upsilon}(4S) resonance and 0.8 fb{sup -1} recorded 40 MeV below the {Upsilon}(4S) resonance. A preliminary result of sin2{beta} = 0.12 {+-} 0.37(stat) {+-} 0.09(syst) was obtained. Details of the analysis are given. Moreover, they present measurements of charged and neutral B meson lifetimes and B{sup 0}{bar B}{sup 0} oscillation frequency.},
doi = {10.2172/784796},
url = {https://www.osti.gov/biblio/784796}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 2000},
month = {Fri Dec 01 00:00:00 EST 2000}
}