Published January 9, 2009 | Version Published
Journal Article Open

Measurement of the e^(+)e^(-)→ bb(macron) cross section between √s = 10.54 and 11.20 GeV

Creators

Abstract

We report e^(+)e^(-)→ bb(macron) cross section measurements by the BABAR experiment performed during an energy scan in the range of 10.54 to 11.20 GeV at the SLAC PEP-II e^(+)e^(-) collider. A total relative error of about 5% is reached in more than 300 center-of-mass energy steps, separated by about 5 MeV. These measurements can be used to derive precise information on the parameters of the Y (10860) and Y (11020) resonances. In particular we show that their widths may be smaller than previously measured.

Additional Information

© 2009 American Physical Society. Received 26 September 2008; published 9 January 2009. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (U.S.A.), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.

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Published - AUBprl09a.pdf

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Additional details

Additional titles

Alternative title
Measurement of the e+e−→bb¯ cross section between s√ = 10.54-GeV and 11.20-GeV

Identifiers

Eprint ID
13825
Resolver ID
CaltechAUTHORS:AUBprl09

Funding

Department of Energy (DOE)
NSF
Natural Sciences and Engineering Research Council of Canada (NSERC)
Commissariat à l'Energie Atomique (CEA)
Centre National de la Recherche Scientifique (CNRS)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
Istituto Nazionale di Fisica Nucleare (INFN)
Stichting voor Fundamenteel Onderzoek der Materie (FOM)
Norwegian Research Council
Ministry of Education and Science of the Russian Federation
Ministerio de Educación y Ciencia (MEC)
Science and Technology Facilities Council (STFC)
Marie Curie Fellowship
Alfred P. Sloan Foundation
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)

Dates

Created
2009-10-02
Created from EPrint's datestamp field
Updated
2023-09-15
Created from EPrint's last_modified field