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Shape of the 8B alpha and neutrino spectra | | C E Ortiz
; A García
; R A Waltz
; M Bhattacharya
; A K Komives
; | | Date: |
2 Oct 2000 | | Journal: | Phys Rev Lett, 85 (14), 2909-12 | | Abstract: | The beta-delayed alpha spectrum from the decay of 8B has been measured with a setup that minimized systematic uncertainties that affected previous measurements. Consequently the deduced neutrino spectrum presents much smaller uncertainties than the previous recommendation [J. N. Bahcall et al., Phys. Rev. C 54, 411 (1996)]. The 8B nu spectrum is found to be harder than previously recommended with about (10-20)% more neutrinos at energies between 12-14 MeV. The integrated cross sections of the 37Cl, 71Ga, 40Ar, and Super-Kamiokande detectors are, respectively, 3.6%, 1.4%, 5.7%, and 2.1% larger than previously thought. | | Source: | PubMed, pmid11005965 | | Services: | Forum | Review | Favorites | |
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