抄録
The 3He(γ,π±p) reactions were measured simultaneously over a tagged photon energy range of 800 ≤Eγ≤1120 MeV, well above the Δ resonance region. An analysis was performed to kinematically isolate Δ knockout events from conventional Δ photoproduction events, and a statistically significant excess of π+ p events was identified, consistent with Δ++ knockout. Two methods were used to estimate the ΔNN probability in the 3He ground state corresponding to the observed knockout cross section. The first gave a lower probability limit of 1.5±0.6±0.5 %; the second yielded an upper limit of about 2.6%.
本文言語 | English |
---|---|
論文番号 | 044001 |
ページ(範囲) | 440011-440018 |
ページ数 | 8 |
ジャーナル | Physical Review C - Nuclear Physics |
巻 | 62 |
号 | 4 |
出版ステータス | Published - 2000 10 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics