TY - JOUR
T1 - The total cross section for the 4He (γ, npp)n reaction in the Δ-resonance region
AU - Emura, T.
AU - Endo, I.
AU - Endo, S.
AU - Itoh, H.
AU - Kato, S.
AU - Koike, M.
AU - Maeda, K.
AU - Maki, T.
AU - Maruo, S.
AU - Maruyama, K.
AU - Murata, Y.
AU - Niki, K.
AU - Rangacharyulu, C.
AU - Sasaki, A.
AU - Suda, T.
AU - Sumi, Y.
AU - Wada, Y.
AU - Yoshida, K.
PY - 1992/7/30
Y1 - 1992/7/30
N2 - This is the first measurement of the total cross section σ(4He (γ npp)n) in the range of 135-455 MeV. The σ, which cannot be reproduced by any model, has similar Eγ dependence to γT(γ4He → all channels). The averaged ratio σ(4He(γ, npp)n)/ σT(γ4 He → all channels) = (2.3 ± 0.3)% is compared with a cascade-model calculation in which quasi-free pion production followed by pion reabsorption is assumed.
AB - This is the first measurement of the total cross section σ(4He (γ npp)n) in the range of 135-455 MeV. The σ, which cannot be reproduced by any model, has similar Eγ dependence to γT(γ4He → all channels). The averaged ratio σ(4He(γ, npp)n)/ σT(γ4 He → all channels) = (2.3 ± 0.3)% is compared with a cascade-model calculation in which quasi-free pion production followed by pion reabsorption is assumed.
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U2 - 10.1016/0370-2693(92)91767-4
DO - 10.1016/0370-2693(92)91767-4
M3 - Article
AN - SCOPUS:0042556869
SN - 0370-2693
VL - 286
SP - 229
EP - 233
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3-4
ER -