The (<sup>6</sup>Li,<sup>6</sup>Li<sup>*</sup>[3.56 MeV]) reaction at 100 MeV/u as a probe of Gamow-Teller transition strengths in the inelastic scattering channel
ORAL
Abstract
The (6Li,6Li∗[T = 1, Tz= 0, 0+, 3.56 MeV]) reaction at 100 MeV/u was developed as a probe for isolating the isovector spin-transfer response in the inelastic channel from which the Gamow-Teller transition strengths from nuclei of relevance for inelastic neutrino-nucleus scattering cross sections can be extracted. By measuring the 6Li ejectile in the Grand Raiden magnetic spectrometer and selecting events in which the 3.56 MeV γ ray from the decay of the 6Li*[3.56 MeV] state is detected, the isovector spin-transfer selectivity is obtained. HPGe clover detectors in the CAGRA array served to detect the γ rays. In the study of the 12C(6Li,6Li∗[3.56 MeV]) reaction, the isovector spin-transfer excitation-energy spectrum in the inelastic channel was successfully measured. For heavier target nuclei, the extraction of the isovector spin-transfer response was hampered by the background in the γ-spectra from isoscalar excitations.
*Supported by the US NSF under Grants No. PHY-1430152, No. PHY-1565546, and No. PHY-1713857, by the US DOE under Contract No. DE-AC02-06CH113567, by the International Joint Research Promotion Program of Osaka University, by the DFG under Contract No. SFB 1245, and by the Hirose International Scholarship Foundation.
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Presenters
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R. G.T. G.T. Zegers
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA, Department of Physics and Astronomy, Michigan State University, E
- National Superconducting Cyclotron Laboratory, Michigan State University, Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements, Michigan State
- National Superconducting Cyclotron Laboratory, Michigan State University, Department of Physics and Astronomy, Michigan State University
- Michigan State Univ
- NSCL/MSU, for the RCNP E441 Collaboration