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DORFAN 1965D

Dorfan, D.E.; Eades, J.; Lederman, L.M.; Lee, W.; Ting, C.C.;
Observation of Antideuterons
Phys. Rev. Lett. 14 (1965) 1003;

Motivation
Using a high-transmission mass analyzer designed to search for unitary-symmetry triplets, we have observed the production of antideuterons in 30 BeV proton-beryllium collisions.
The search was made in a 41 / 2-deg beam described in the preceding Letter. This communication also described the logic designed to suppress β =1 particles and their residue while recording beam-defined particles of 0.81 < β < 0.96. To bring antideuterons into the sensitive velocity band, the beam was tuned to momenta between 4.5 and 6 BeV/c. We also report on a search for antitritons in the momentum interval near 9.0 BeV/c. (Extracted from the introductory part of the paper.).

Accelerator BNL Detectors CNTR

Related references
See also
D. E. Dorfan et al., Phys. Rev. Lett. 14 (1965) 999;

Reactions

	p Be anti-deuteron X	30 GeV (Plab)	angp, cs
	p Be anti-3H X	30 GeV (Plab)	cs

Particles studied

	anti-deuteron	ex, mass
	anti-3H	ex

Record comments
First evidence of the antideuteron.

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