第5卷‧第1期,
198101
, pp. 1-7
對具有任意自旋的靶所作康普吞散射的低能量定理
- 作者:
林克瀛
- 作者服務機構:
清大物理系
- 中文摘要:
這篇論文中我們檢討自1954年以來在理論上有關對具有任意自旋的靶所作康普吞散射的低能量定理的研究。我們詳細說明不種導出低能量定理的普遍方法,並且用來證明康普吞散射幅由靶本身的多極矩及一些與結構有關的常數所完全決定。電荷共軛和時間空間反轉不變性的效果也加以討論。散射幅用入射光子的能量為變數展開後的前四項(到三階為止)用靶的電荷,磁偶極矩,電四極矩,磁八極矩及十個與結構有關的常數表示出來。
- 英文摘要:
In this paper we review the theoretical studies since 1954 of low-energy theorems for Comptonscattering on targets of arbitrary spin. A general method to derive low-energy theorems is described indetail. It is shown that the Compton scattering amplitudes are determined by structure-dependent constantsand the intrinsic multipole moments of the targets. The effects of C, P and T invariances are discussed. Thescattering amplitudes are given explicitly to third order in photon energy and expressed in terms of theelectric charge, the magnetic dipole moment, the electric quadrupole moment, the magnetic octupolemoment and ten structure-dependent constants.
- 中文關鍵字:
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- 英文關鍵字:
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