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A. A. Garter et al., Nucl. Phys., B26 (1971), 445.[2] H. Arenhvel, Nucl. Phys., A247 (1975),473;张宗烨、王英才，高能物理与核物理,1(1978), 45.[3] 余友文、张宗烨、于敏，物理学报, 19 (1963), 483.
A. A. Garter et al., Nucl. Phys., B26 (1971), 445.[2] H. Arenhvel, Nucl. Phys., A247 (1975),473;张宗烨、王英才，高能物理与核物理,1(1978), 45.[3] 余友文、张宗烨、于敏，物理学报, 19 (1963), 483.