Role of final state interactions in the p p ---> pi+ pi- annihilation process

Mull, V.; Holinde, K.; Speth, J.

doi:10.1016/0370-2693(92)90843-S

Role of final state interactions in the p p ---> pi+ pi- annihilation process

V. Mull
(
- Julich, Forschungszentrum
)
,
K. Holinde
(
- Julich, Forschungszentrum
)
,
J. Speth
(
- Julich, Forschungszentrum
)

Oct 25, 1991

7 pages

Published in:

Phys.Lett.B 275 (1992) 12-18

Published: 1992

DOI:

10.1016/0370-2693(92)90843-S

Report number:

KFA-IKP-TH-1991-37

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Abstract: (Elsevier)

We investigate the role of final-state interactions in the p ̄ p→π + π − annihilation process, based on a realistic meson-exchange model for the ππ interaction. In contrast to claims made sometimes in the literature, we find sizeable effects, also in J ≠ 0 partial waves, which strongly improve the results for spin observables in the p ̄ p→π + π − reaction. Off-shell effects turn out to be of importance.

anti-p p: annihilation
annihilation: anti-p p
pi: hadroproduction
hadroproduction: pi
pi: pair production
pair production: pi
final-state interaction
meson: exchange
exchange: meson
partial wave

References(7)

Figures(0)

Role of Kaon Exchange in the $p \bar{p} \to \Lambda \bar{\Lambda}$ Reaction

M. Kohno
(
- Regensburg U.
)
,
W. Weise
(
- Regensburg U.
)

- Phys.Lett.B 179 (1986) 15-19,
- Phys. Lett. B179 ( 1986) 15-19 and Regensburg Univ. - TPR-86-09 (86,REC.JUL.) 12p
•
DOI:
- 10.1016/0370-2693(86)90427-2