Low-momentum nucleon-nucleon interaction and its application to the few-nucleon systems
Low-momentum nucleon-nucleon interactions are derived within the framework of a unitary-transformation theory, starting with realistic nucleon-nucleon interactions. A cutoff momentum {Lambda} is introduced to specify a border between the low- and high-momentum spaces. By the Faddeev-Yakubovsky calculations the low-momentum interactions are investigated with respect to the dependence of ground-state energies of {sup 3}H and {sup 4}He on the parameter {Lambda}. It is found that we need the momentum cutoff parameter {Lambda} {ge} 5 fm{sup -1} in order to reproduce satisfactorily the exact values of the binding energies for {sup 3}H and {sup 4}He. The calculation with {Lambda} = 2 fm{sup -1} recommended by Bogner et al. leads to considerable overbinding at least for the few-nucleon systems.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 824821
- Report Number(s):
- JLAB-THY-04-11; DOE/ER/40150-2725; nucl-th/0404049
- Country of Publication:
- United States
- Language:
- English
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