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The inclusive proton spectrum for $$\bar pd \to 3\pi p$$ at rest re-examined (1991)

Locher, M. P. ; Zou, B. S.

Springer

The European physical journal 340 (1991), S. 187-190

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ISSN: 1434-601X

Keywords: 13.75.Cs

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We re-analyze the spectator proton distribution for ¯pd→π + π− π− p. For this channel previous calculations underestimated the cross section for proton momenta of 300 to 600 MeV/c by about a factor 7 while the channels with higher pion multiplicities and the ¯pd→K¯ Kmπp reactions were well explained. By using detailed experimental information on ¯pn and ¯pp annihilation, meson rescattering can in fact explain the cross section also for the 3π case. The¯ pp annihilation followed by charge exchange pion rescattering is much larger than in the 5π case. Vector meson exchange is small but not negligible at high spectator momenta.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01303831

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