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

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

doi:10.1016/j.physletb.2011.10.061

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

Frekers D., Ejiri H., Akimune H., Adachi T., Bilgier B., Brown B. A., ...Daha Fazla

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, cilt.706, ss.134-138, 2011 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 706
Basım Tarihi: 2011
Doi Numarası: 10.1016/j.physletb.2011.10.061
Dergi Adı: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.134-138
Anahtar Kelimeler: Charge-exchange reaction, Gamow-Teller strength, Neutrino cross section, Solar neutrinos, SPECTROMETER GRAND RAIDEN, ELECTRON-CAPTURE DECAY, PF-SHELL NUCLEI, INTERNAL BREMSSTRAHLUNG, INTERMEDIATE ENERGIES, HE-3,T REACTIONS, CROSS-SECTIONS, P,N REACTION, SCATTERING, GALLEX
İstanbul Üniversitesi Adresli: Evet

Özet

A Ga-71(He-3,t)Ge-71 charge-exchange experiment was performed to extract with high precision the Gamow-Teller (GT) transition strengths to the three lowest-lying states in Ge-71, i.e., the ground state (1/2(-)), the 175 keV (5/2(-)) and the 500 key (3/2(-)) excited states. These are the relevant states, which are populated via a charged-current reaction induced by neutrinos from reactor-produced Cr-51 and Ar-37 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 Cr-51 and Ar-37 neutrino calibration sources, which has recently spawned new ideas about unconventional neutrino properties. (C) 2011 Elsevier B.V. All rights reserved.