Few-Body Systems

, Volume 54, Issue 7–10, pp 1343–1347 | Cite as

Ab Initio Study of Electroweak Responses of 4He

  • W. Horiuchi
  • Y. Suzuki
  • K. Arai


In this contribution, we discuss the electroweak responses of 4He based on a full four-body calculation. 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 which have 3+1 and 2+1+1 cluster partitions of four-nucleon system explicitly. The continuum is properly treated by taking the two approaches: one is the complex scaling method and the other is the microscopic R-matrix method. The calculated photoabsorption cross sections agree up to the rest energy of a pion. The spin–dipole strength function is also presented and its relationship between the spectrum of 4He is discussed.


Giant Dipole Resonance Strength Function Photoabsorption Cross Section Continuum Wave Function Giant Dipole Resonance Region 
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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.Department of PhysicsHokkaido UniversitySapporoJapan
  2. 2.Department of PhysicsNiigata UniversityNiigataJapan
  3. 3.RIKEN Nishina CenterWakoJapan
  4. 4.Division of General EducationNagaoka National College of TechnologyNagaokaJapan

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