Quasielastic scattering of pions from O 16 at energies around the Δ ( 1232 ) resonance
Quasielastic scattering of pions from O 16 at energies around the Δ ( 1232 ) resonance
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O 16 介子在 Δ (1232) 共振附近能量的准弹性散射
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
J. Arvieux
中科院分区：
文献类型：
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作者：
C. Ingram;P. Gram;J. Jansen;R. E. Mischke;J. Zichy;J. Bolger;E. Boschitz;G. Pröbstle;J. Arvieux
通过测量π介子在30 μ m模-圆之间的五个角度上的能谱，研究了π介子与$^{16}mathrm{O}$的非弹性散射 extdegreefi{}和134 ifmmode ^circelse extdegreefi{}三个入射π介子能量：114，163，和240 MeV。由于核中单个核子的准弹性散射，光谱由一个宽峰主导。重点讨论了包括吸收效应在内的π-核相互作用动力学。对所有非辐射通道的部分${ensuremath{pi}}^{+}$-$^{16}mathrm{O}$截面进行了估算。
Inelastic pion scattering from $^{16}mathrm{O}$ has been studied by measuring the spectrum of pions down to 40 MeV at five angles between 30ifmmode^circelse extdegreefi{} and 134ifmmode^circelse extdegreefi{} for three incident pion energies: 114, 163, and 240 MeV. The spectra are dominated by a broad peak due to quasielastic scattering from a single nucleon in the nucleus. The systematics of the spectra are discussed with emphasis on the pion-nucleus interaction dynamics including the effect of absorption. The partial ${ensuremath{pi}}^{+}$-$^{16}mathrm{O}$ cross sections for all nonradiative channels are estimated.