Photoproduction of πmesons from nuclei
Photoproduction of πmesons from nuclei
复制标题
原子核光产生 π 介子
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
D. Watts
中科院分区：
文献类型：
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作者：
B. Krusche;J. Lehr;J. Ahrens;J. Annand;R. Beck;F. Bloch;L. Fog;D. Hornidge;S. Janssen;M. Kotulla;J. Mcgeorge;I. Macgregor;J. Messchendorp;V. Metag;U. Mosel;R. Novotný;R. Owens;M.Pfeiffer;R. Sanderson;S. Schadmand;D. Watts
摘要：利用美因茨MAMI加速器上的格拉斯哥光子标记光谱仪，利用TAPS探测器，在入射光子能量从200 MeV到800 MeV的条件下，研究了从原子核（碳、钙、铌、铅）中光生中性π介子的情况。获得了中性π介子光生的全部数据和准自由单π0、双π0和π0π±光生的部分通道的数据。从核子共振的介质内行为和π-核相互作用两个方面对它们进行了分析。他们进行了比较，以较早的测量从氘核和预测的玻尔兹曼-Uehling-Uhlenbeck（BUU）运输模型的光子诱导的π介子生产从核。
Abstract.Photoproduction of neutral pions from nuclei (carbon, calcium, niobium, lead) has been studied for incident-photon energies from 200 MeV to 800 MeV with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Data were obtained for the inclusive photoproduction of neutral pions and the partial channels of quasifree single-π0, double-π0, and π0π± photoproduction. They have been analyzed in terms of the in-medium behavior of nucleon resonances and the pion-nucleus interaction. They are compared to earlier measurements from the deuteron and to the predictions of a Boltzmann-Uehling-Uhlenbeck (BUU) transport model for photon-induced pion production from nuclei.