Deuteron and Anti-deuteron Production in e+e- Collisions at the Z Resonance

dc.creatorThe ALEPH Collaboration
dc.creatorSchael, S.
dc.date2006-04-11
dc.date.accessioned2026-07-07T11:26:35Z
dc.date.available2026-07-07T11:26:35Z
dc.descriptionDeuteron and anti-deuteron production in Z decays has been observed in the ALEPH experiment at LEP. The production rate of anti-deuterons is measured to be 5.9+-1.8+-0.5 10^-6 per hadronic Z decay in the anti-deuteron momentum range 0.62 to 1.03 GeV/c. The coalescence parameter B_2, which characterizes the likelihood of anti-deuteron production, is measured to be 0.0033+-0.0013 GeV^2 in Z dedays. These measurements indicate that the production of anti-deuterons is suppressed in e+e- collisions compared to pp and photoproduction collisions.
dc.identifierhttps://arxiv.org/abs/hep-ex/0604023
dc.identifierhttp://arxiv.org/abs/hep-ex/0604023
dc.identifierPhys.Lett.B639:192-201,2006
dc.identifierdoi:10.1016/j.physletb.2006.06.043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195872
dc.subjectHigh Energy Physics - Experiment
dc.titleDeuteron and Anti-deuteron Production in e+e- Collisions at the Z Resonance
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