High-resolution 100Mo(3He,t)100Tc charge-exchange experiment and the impact on double-β decays and neutrino charged-current reactions

J. H. Thies, T. Adachi, M. Dozono, H. Ejiri, D. Frekers, H. Fujita, Y. Fujita, M. Fujiwara, E. W. Grewe, K. Hatanaka, P. Heinrichs, D. Ishikawa, N. T. Khai, A. Lennarz, H. Matsubara, H. Okamura, Y. Y. Oo, P. Puppe, T. Ruhe, K. SudaA. Tamii, H. P. Yoshida, R. G.T. Zegers

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    33 Citations (Scopus)

    Abstract

    The Gamow-Teller (GT) strength distribution has been investigated in a high-resolution (3He,t) charge-exchange experiment on the double-beta (ββ) decaying nucleus 100Mo. The experiment was carried out at the Osaka University Research Center for Nuclear Physics (RCNP) with a 420 MeV incident 3He beam and the Grand Raiden magnetic spectrometer. A final-state energy resolution of 33 keV was achieved. It was found that nearly the entire low-energy (up to ≈4 MeV) GT- strength is concentrated in the ground-state transition to 100Tc, which is interpreted as a result of the particular neutron and proton sub-shell occupancies. The impact on the matrix elements for the two-neutrino double-beta (2νββ) decay and the use of 100Mo as a neutrino detection material is discussed.

    Original languageEnglish
    Article number044309
    JournalPhysical Review C - Nuclear Physics
    Volume86
    Issue number4
    DOIs
    Publication statusPublished - 2012 Oct 8

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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