1. The 71Ga(3He, t) reaction and the low-energy neutrino response
- Author
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Frekers, D., Ejiri, H., Akimune, H., Adachi, T., Bilgier, B., Brown, B.A., Cleveland, B.T., Fujita, H., Fujita, Y., Fujiwara, M., Ganioğlu, E., Gavrin, V.N., Grewe, E.-W., Guess, C.J., Harakeh, M.N., Hatanaka, K., Hodak, R., Holl, M., Iwamoto, C., and Khai, N.T.
- Subjects
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NUCLEAR reactions , *GALLIUM isotopes , *HELIUM isotopes , *CHARGE exchange , *PHASE transitions , *NUCLEAR reactors , *CALIBRATION , *NUCLEAR excitation - Abstract
Abstract: 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 , the 175 keV and the 500 keV 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. [Copyright &y& Elsevier]
- Published
- 2011
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