The 71Ga( 3He,t) reaction and the low-energy neutrino response

D. Frekers, H. Ejiri, H. Akimune, T. Adachi, B. Bilgier, B. A. Brown, B. T. Cleveland, H. Fujita, Y. Fujita, M. Fujiwara, E. Ganioǧlu, V. N. Gavrin, E. W. Grewe, C. J. Guess, M. N. Harakeh, K. Hatanaka, R. Hodak, M. Holl, C. Iwamoto, N. T. KhaiH. C. Kozer, A. Lennarz, A. Okamoto, H. Okamura, P. P. Povinec, P. Puppe, F. Šimkovic, G. Susoy, T. Suzuki, A. Tamii, J. H. Thies, J. Van de Walle, R. G.T. Zegers

    Research output: Contribution to journalArticlepeer-review

    59 Citations (Scopus)


    A 71Ga( 3He,t) 71Ge charge-exchange experiment was performed to extract with high precision the Gamow-Teller (GT) transition strengths to the three lowest-lying states in 71Ge, i.e., the ground state (1/2 -), the 175 keV (5/2 -) and the 500 keV (3/2 -) excited states. These are the relevant states, which are populated via a charged-current reaction induced by neutrinos from reactor-produced 51Cr and 37Ar sources. A precise measurement of the GT transition strengths is an important input into the calibration of the SAGE and GALLEX solar neutrino detectors and addresses a long-standing discrepancy between the measured and evaluated capture rates from the 51Cr and 37Ar neutrino calibration sources, which has recently spawned new ideas about unconventional neutrino properties.

    Original languageEnglish
    Pages (from-to)134-138
    Number of pages5
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Issue number2-3
    Publication statusPublished - 2011 Dec 6


    • Charge-exchange reaction
    • Gamow-Teller strength
    • Neutrino cross section
    • Solar neutrinos

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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