Evaluation of the three-nucleon analyzing power puzzle

✍ Scribed by W. Tornow; H. Witała

• Book ID: 104336926
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 561 KB
• Volume: 637
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(98)00233-4

✦ Synopsis

The current status of the three-nucleon analyzing power puzzle is reviewed. Applying tight constraints on the allowed deviations between calculated predictions and accepted values for relevant nucleon-nucleon observables reveals that energy independent correction factors applied to the 3pj nucleon-nucleon interactions can not solve the puzzle. Furthermore, using the same constraints, charge-independence breaking in the 3p. nucleon-nucleon interactions can be ruled out as a possible tool to improve the agreement between three-nucleon calculations and data. The study of the energy dependence of the three-nucleon analyzing power puzzle gives clear evidence that the 3pj nucleon-nucleon interaction obtained from phase-shift analyses and used in potential models are correct above about 25 MeV, i.e., the 3pj nucleon-nucleon interactions have to be modified only at lower energies in order to solve the three-nucleon analyzing power puzzle, unless new three-nucleon forces can be found that account for the three-nucleon analyzing power puzzle without destroying the beautiful agreement between rigorous three-nucleon calculations and a large body of accurate three-nucleon data. @ 1998