Anti-p d annihilation at rest into pi+ pi- pi- p(spectator) - INSPIRE

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Anti-p d annihilation at rest into pi+ pi- pi- p(spectator)

Crystal Barrel

Collaboration

•

A. Abele
(
- Karlsruhe U.
)

1999

6 pages

Published in:

Phys.Lett.B 450 (1999) 275-280

DOI:

10.1016/S0370-2693(99)00090-8

PDG:

{{\mathit \pi}}{{\mathit \pi}}

View in:

reference search17 citations

Citations per year

Abstract: (Elsevier)

A study of antiproton annihilation in liquid deuterium into π + π − π − and a spectator proton is presented. For a long time this reaction resisted a description by final state interactions which is surprising (and disturbing) given the success of the final state interaction model in other annihilation reactions. It is shown that the introduction of ρ (1450) is essential to get a reasonable description of the measured Dalitz plot. This resonance was never tried in previous attempts to understand this data. A possible isospin-2- ππ S-wave contribution was tested, but no evidence was found for such a contribution.

anti-p deuteron: annihilation
at rest
pi: multiple production
p: spectator
Dalitz plot: (pi+ 2pi-)
mass spectrum: (2pi)
partial wave analysis
rho(770)
rho(1450)
rho(1700)

References(19)

Figures(0)

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