Antideuteron Production in ϒ(nS) Decays and in e⁺e⁻→qq̅ at √s ≈ 10.58  GeV

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Antideuteron Production in ϒ(nS) Decays and in e⁺e⁻→qq̅ at √s ≈ 10.58  GeV

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Title: Antideuteron Production in ϒ(nS) Decays and in e⁺e⁻→qq̅ at √s ≈ 10.58  GeV
Author(s):
Lees, J. P.;
Poireau, V.;
Tisserand, V.;
Grauges, E.;
Palano, A.;
Eigen, G.;
Stugu, B.;
Lou, Xinchou;
Izen, Joseph M.;
BaBar Collaboration
Date Created: 2014-06-24
Format: Text
Item Type: Article
Keywords: Antideuterons
Mesons
Electrons
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) → d̅X) = (2. 81 ± 0.49 (stat) _{-0.24}^{+0.20} (syst)) x 10⁻⁵ ℬ(ϒ(2S) → d̅X) = (2. 64 ± 0.11 (stat) _{-0.21}^{+0.26} (syst)) x 10⁻⁵, B(ϒ(3S) → d̅X) = (2. 33 ± 0.15 (stat) _{-0.28}^{+0.31} (syst)) x 10⁻⁵, and σ(e⁺e⁻ → d̅X) = (9.63 ± 0.41 (stat) _{-1.01}^{+1.17} (syst) fb.
Publisher: American Physical Society
ISSN: 1550-2368
Source: Physical Review D - Particles, Fields, Gravitation And Cosmology
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevD.89.111102
Persistent Link: http://hdl.handle.net/10735.1/4159
Bibliographic Citation: Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2014. "Antideuteron production in ϒ(nS) Decays and in e⁺e⁻ →qq̅ at √s ≈10.58  GeV." Physical Review D - Particles, Fields, Gravitation and Cosmology 89(11), doi:10.1103/PhysRevD.89.111102
Terms of Use: ©2014 American Physical Society

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