Compton scattering from the proton at fourth order in the chiral expansion.
Compton scattering from the proton at fourth order in the chiral expansion.
复制标题
手性展开式中质子的康普顿散射四阶。
DOI:
10.1103/physrevc.63.064608
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发表时间:
2001
影响因子:
3.1
通讯作者:
J. McGovern
中科院分区:
文献类型:
--
作者:
J. McGovern
We present calculations of differential cross sections for Compton scattering from the proton, using amplitudes calculated to fourth order in heavy baryon chiral perturbation theory. We compare with available data up to 200 MeV. We find that the agreement for angles below 90 degree is acceptable over the whole energy range, but that at more backward angles the agreement decreases above about 100 MeV, and fails completely above the photoproduction threshold.