Measurement of the {sup 12}C({gamma},{pi}{sup 0}) reaction near threshold
- Saskatchewan Accelerator Laboratory, 107 North Road, University of Saskatchewan, Saskatoon, Saskatchewan, S7N5C6 (CANADA)
The total cross section and pion angular distributions for the reaction {sup 12}C({gamma},{pi}{sup 0}) have been measured within 25 MeV of threshold using tagged photons and a large acceptance {pi}{sup 0} spectrometer at the Saskatchewan Accelerator Laboratory (SAL). The total cross section is in agreement with earlier measurements from Saclay and Mainz. The elementary P-wave photoproduction amplitude P{sub 3}{sup (+)} has been determined from a distorted-wave impulse-approximation analysis of the nuclear data and compares favorably with the corresponding free-nucleon amplitude in the threshold region. The incoherent contribution from the 4.43 MeV (2{sup +}) state has been deduced from the pion angular distributions and is in agreement with previous experimental estimates. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 509095
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 55; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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