DOUBLE DELTA (1232) FORMATION IN PION NUCLEUS ABSORPTION

Brown, G.E.; Toki, H.; Weise, W.; Wirzba, A.

doi:10.1016/0370-2693(82)90597-4

DOUBLE DELTA (1232) FORMATION IN PION NUCLEUS ABSORPTION

G.E. Brown
(
- SUNY, Stony Brook and
- Nordita and
- Michigan State U.
)
,
H. Toki
(
- SUNY, Stony Brook and
- Nordita and
- Michigan State U.
)
,
W. Weise
(
- SUNY, Stony Brook and
- Nordita and
- Michigan State U.
)
,
A. Wirzba
(
- SUNY, Stony Brook and
- Nordita and
- Michigan State U.
)

1982

6 pages

Published in:

Phys.Lett.B 118 (1982) 39-44

Published: 1982

DOI:

10.1016/0370-2693(82)90597-4

View in:

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Abstract: (Elsevier)

Double- Δ (1232) formation following pion absorption in and above the 3.3 resonance region is shown to provide an important absorption mechanism for heavy nuclei, if the Δ N → ΔΔ interaction behaves according to SU (4) quark model rules. The ΔΔ configuration is formed preferentially in T = 2 states and decays predominantly by emission of four nucleons, unlike the standard π NN → Δ N → NN two-nucleon process. We show that this mechanism is able to explain some of the striking features observed in proton emission spectra following π ± -nucleus absorption in the Δ region.

PI NUCLEUS: NUCLEAR REACTION
PI: ABSORPTION
ABSORPTION: PI
DELTA(1232): EFFECT
DELTA(1232): PAIR PRODUCTION
PAIR PRODUCTION: DELTA(1232)
SCATTERING: DELTA(1232) NUCLEUS
DELTA(1232) NUCLEUS: SCATTERING
SYMMETRY: SU(4)
RESONANCE: DECAY RATE

References(16)

Figures(0)

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