Precision evaluation of the Ga-71(nu(e),e(-)) solar neutrino capture rate from the (He-3,t) charge-exchange reaction

D. Frekers*, T. Adachi, H. Akimune, M. Alanssari, B. A. Brown, B. T. Cleveland, H. Ejiri, H. Fujita, Y. Fujita, M. Fujiwara, V. N. Gavrin, M. N. Harakeh, K. Hatanaka, M. Holl, C. Iwamoto, A. Lennarz, A. Okamoto, H. Okamura, T. Suzuki, A. Tamii

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

22 Citaten (Scopus)
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Samenvatting

A precision measurement of the Ga-71(He-3,t)Ge-71 charge-exchange reaction was performed. By using a rather complete set of theoretical form factors to describe the cross-section angular distributions over a large angular range, the Gamow-Teller strength distribution up to the effective neutron-separation energy in Ge-71 was extracted. The data and the analysis constrain the Ga-71(nu(e),e(-)) solar neutrino rate in a neutrino nonoscillation scenario. For nonoscillating neutrinos we report a solar neutrino capture rate of 122.4 +/- 3.4(stat) +/- 1.1(sys) SNU, which is lower than the presently accepted value of 132 +/- 18 SNU, though not in disagreement given the quoted errors.

Originele taal-2English
Artikelnummer034608
Aantal pagina's7
TijdschriftPhysical Review C
Volume91
Nummer van het tijdschrift3
DOI's
StatusPublished - 13-mrt-2015

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