Deuteron and anti-deuteron production in e+ e- collisions at the Z resonance.

Schael, S. and Bouhova-Thacker, E. V. and Bowdery, C. K. and Finch, A. J. and Jones, Roger W. L. and Hughes, Gareth and Smizanska, Maria and ALEPH, collaboration (2006) Deuteron and anti-deuteron production in e+ e- collisions at the Z resonance. Physics Letters B, 639 (3-4). pp. 192-201. ISSN 0370-2693

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Abstract

Deuteron 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 from 0.62 to 1.03 GeV/c. The coalescence parameter B2, which characterizes the likelihood of anti-deuteron production, is measured to be 0.0033±0.0013 GeV2 in Z decays. These measurements indicate that the production of anti-deuterons is suppressed in e+e− collisions compared to that in pp and photoproduction collisions.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
26329
Deposited By:
Deposited On:
30 Apr 2009 15:00
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Jan 2020 07:17