The Reactions p d ---> He-3 eta and p d ---> He-3 pi+ pi- near the eta threshold - INSPIRE

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The Reactions p d ---> He-3 eta and p d ---> He-3 pi+ pi- near the eta threshold

Nov, 1995

8 pages

Published in:

Phys.Rev.C 53 (1996) 2068-2074

DOI:

10.1103/PhysRevC.53.2068

Report number:

DAPNIA-SPHN-95-56

Experiments:

Saclay-SPES2

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Abstract: (APS)

The reaction pd→3Heη has been studied with the SPES2 spectrometer, for proton energies between 0.2 MeV and 11 MeV above threshold. The total cross section rises from 0.25 to 0.40 μb in this region. The observed energy dependence can be attributed to the strong final state interaction. The angular distribution is nearly isotropic, consistent with S wave production. A measurement of the pd→3Heπ+π− cross section in the threshold region is also presented. The setup, which is capable of producing 105 tagged η/s with only a few percent background, is used to investigate rare η decays. © 1996 The American Physical Society.

p deuteron: exclusive reaction
helium: hadroproduction
hadroproduction: helium
eta: hadroproduction
hadroproduction: eta
threshold
pi: pair production
pair production: pi
channel cross section: energy dependence
final-state interaction

References(12)

Figures(0)

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