Nuclear Reactions with a Realistic Nuclear Interaction Using a Square Integrable Basis

作者：Horiuchi Wataru^*; Suzuki Yasuyuki; Arai Koji

来源：Progress of Theoretical Physics - Supplement, 2012, 196(196): 125-130.

DOI：10.1143/ptps.196.125

We discuss the controversy of the photoabsorption cross section of He-4 based on a full four-body calculation. The continuum is properly treated by taking the following two approaches: one is the complex scaling method and the other is the microscopic R-matrix method, which are widely used method for describing continuum state with a square integrable basis. The wave function of the ground state is obtained accurately using an explicitly correlated basis. Four-body final states are expressed in a superposition of many basis functions including configurations dividing He-4 into 3+1 and 2+1+1 partitions explicitly, which are important for describing the low-lying photoabsorption cross section. The results agree with the other theoretical works and sonic measurements but disagree with one of the recent data.

• 出版日期2012