2003/05/25 by A. C. Hayes, P. Navratil, P. Navrátil +2 · 1 citation
Physics and Astronomy · #Atomic physics #Muon #Neutrino #Neutrino Physics Research #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics theoretical and experimental studies #Physics #nucl-th
paper · pdf · doi:10.1103/physrevlett.91.012502
published as Phys.Rev.Lett. 91 (2003) 012502 · 6 pages, 2 figures
arxiv created 2003/05/25 · openalex publication_date 2003/06/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate cross sections for neutrino-12C exclusive scattering and for muon capture on 12C using wave functions obtained in the ab initio no-core shell model. In our parameter-free calculations with basis spaces up to the 6 variant Planck's over 2pi Omega we show that realistic nucleon-nucleon interactions, like, e.g., the CD-Bonn, underpredict the experimental cross sections by more than a factor of 2. By including a realistic three-body interaction, Tucson-Melbourne TM'(99), the cross sections are enhanced significantly and a much better agreement with experiment is achieved. At the same time, the TM'(99) interaction improves the calculated level ordering in 12C. The comparison between the CD-Bonn and the three-body calculations provides strong confirmation for the need to include a realistic three-body interaction to account for the spin-orbit strength in p-shell nuclei.