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Antideuteron production in Υ(nS) decays and in e+e−→qq¯ at s√≈10.58 GeV
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BaBar Collaboration (Including: Gershon, T. J., Harrison, P. F. and Latham, Thomas). (2014) Antideuteron production in Υ(nS) decays and in e+e−→qq¯ at s√≈10.58 GeV. Physical Review Letters, Volume 89 (Number 11). 111102(R). doi:10.1103/PhysRevD.89.111102 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.89.111102
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¯X)=(2.81±0.49(stat)+0.20−0.24(syst))×10−5, B(Υ(2S)→d¯X)=(2.64±0.11(stat)+0.26−0.21(syst))×10−5, B(Υ(3S)→d¯X)=(2.33±0.15(stat)+0.31−0.28(syst))×10−5, and σ(e+e−→d¯X)=(9.63±0.41(stat)+1.17−1.01(syst) fb.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
Journal or Publication Title: | Physical Review Letters | ||||||
Publisher: | American Physical Society | ||||||
ISSN: | 0031-9007 | ||||||
Official Date: | 24 June 2014 | ||||||
Dates: |
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Volume: | Volume 89 | ||||||
Number: | Number 11 | ||||||
Article Number: | 111102(R) | ||||||
DOI: | 10.1103/PhysRevD.89.111102 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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