Antideuteron production in Υ(nS)decays and in e^+e^− → qq[bar] at √s≈10.58 GeV
Abstract
We present measurements of the inclusive production of antideuterons in e^+e^− annihilation into hadrons at ≈10.58 GeV center-of-mass energy and in Υ(1S,2S,3S) decays. The results are obtained using data collected by the BABAR detector at the PEP-II electron-positron collider. Assuming a fireball spectral shape for the emitted antideuteron momentum, we find B(Υ(1S)→d[bar]X)=(2.81±0.49(stat)^(+0.20)_(−0.24)(syst))×10^(−5), B(Υ(2S)→d[bar]X)=(2.64±0.11(stat)^(+0.26)(−0.21)(syst))×10^(−5), B(Υ(3S)→d[bar]X)=(2.33±0.15(stat)^(+0.31)_(−0.28)(syst))×10^(−5), and σ(e^+e^− →d[bar]X)=(9.63±0.41(stat)^(+1.17)_(−1.01)(syst) fb.
Additional Information
© 2014 American Physical Society. Received 19 March 2014; Published 24 June 2014. 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 (USA), NSERC(Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel).Attached Files
Published - PhysRevD.89.111102.pdf
Submitted - 1403.4409v2.pdf
Supplemental Material - note2516_SupMat.pdf
Supplemental Material - note2516_SupMat.tex
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Additional details
- Alternative title
- Antideuteron production in Upsilon(nS) decays and in e(+)e(-) -> q(q) over bar at root s approximate to 10.58 GeV
- Eprint ID
- 48296
- Resolver ID
- CaltechAUTHORS:20140811-123143066
- SLAC
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- CEA and CNRS/IN2P3 (France)
- BMBF and DFG (Germany)
- 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
- MICIIN (Spain)
- Science and Technology Facilities Council (STFC)
- Marie Curie Fellowship
- Alfred P. Sloan Foundation
- Binational Science Foundation (USA-Israel)
- Created
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2014-08-11Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field