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

63 Citations (Scopus)

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 (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
Volume706
Issue number2-3
DOIs
Publication statusPublished - 2011 Dec 6
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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