Effect of radiative corrections on the solar neutrino spectrum

Batkin, I.S.; Sundaresan, M. K.

doi:10.1103/physrevd.52.5362

Cited by 14 publications

(23 citation statements)

References 7 publications

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“…Radiative corrections for the case where the neutrino is detected while the positron remains unobserved were calculated explicitly in Ref. [41], and affect the 8 B neutrino spectrum at the level of 1%. The β + decay strength function determined in Sec.…”

Section: Determination Of Thementioning

confidence: 99%

TheB8neutrino spectrum

et al. 2006

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Knowledge of the energy spectrum of 8 B neutrinos is an important ingredient for interpreting experiments that detect energetic neutrinos from the Sun. The neutrino spectrum deviates from the allowed approximation because of the broad alpha-unstable 8 Be final state and recoil order corrections to the beta decay. We have measured the total energy of the alpha particles emitted following the beta decay of 8 B. The measured spectrum is inconsistent with some previous measurements, in particular with a recent experiment of comparable precision. The beta decay strength function for the transition from 8 B to the accessible excitation energies in 8 Be is fit to the alpha energy spectrum using the R-matrix approach. Both the positron and neutrino energy spectra, corrected for recoil order effects, are constructed from the strength function. The positron spectrum is in good agreement with a previous direct measurement. The neutrino spectrum disagrees with previous experiments, particularly for neutrino energies above 12 MeV.

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Section: Determination Of Thementioning

confidence: 99%

TheB8neutrino spectrum

et al. 2006

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“…The radiative corrections were taken from Ref. [28]. A consistent neutrino spectrum was extracted from the IGISOL R-matrix fit using the same corrections.…”

Section: Fig 3 (Color Online)mentioning

confidence: 99%

Precise Determination of the UnperturbedB8Neutrino Spectrum

et al. 2012

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“…This is not obtained from the electron spectrum radiative correction by the substitution of E e → ∆−E ν because the energy available to the leptons is distributed three ways: to the electron, to the neutrino and to the internal bremsstrahlung photon. This was first pointed out by Batkin and Sundaresan [24]. Since the neutrinos are originating from beta decays in the sun, there is no question this time of the internal bremsstrahlung photons being detected.…”

Section: Appendix C: Radiative Correctionsmentioning

confidence: 94%

“…(C1) for the real photon radiative correction, the delta function is used in the integration over electron energies, while the integrations over Q and x are done carefully to isolate the infrared singularity. The result has been given by Batkin and Sundaresan [24]. The virtual radiative correction is unchanged and given by Eq.…”

Section: Appendix C: Radiative Correctionsmentioning

confidence: 99%

“…The contributions to the radiative corrections have two components: the emission of real photons (internal bremsstrahlung) and virtual radiative corrections due, for example, to the exchange of photons between charged particles. The differential rate for real photon emission in an allowed beta transition is given by the expression [24] dΓ ∝ α 2π…”

Section: Appendix C: Radiative Correctionsmentioning

confidence: 99%

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8Lielectron spectrum versus8Bneutrino spectrum: Implications for measuring solar

1998

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The sensitivity of the Sudbury Neutrino Observatory (SNO) to measure the shape of the recoil electron spectrum in the charged-current reaction of 8 B solar neutrinos interacting with deuterium can be improved if the results of a 8 Li beta-decay calibration experiment are included in the test. We calculate an improvement in sensitivity, under certain idealistic assumptions, of about a factor of 2, sufficient to resolve different neutrino-oscillation solutions to the solar-neutrino problem. We further examine the role of recoil and radiative corrections on both the 8 B neutrino spectrum and the 8 Li electron spectrum and conclude that the influence of these effects on the ratio of the two spectra as measured by SNO is very small. 23.40.Bw, 25.30.Pt, 96.60.Kx Typeset using REVT E X

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Effect of radiative corrections on the solar neutrino spectrum

Cited by 14 publications

References 7 publications

TheB8neutrino spectrum

TheB8neutrino spectrum

Precise Determination of the UnperturbedB8Neutrino Spectrum

8Lielectron spectrum versus8Bneutrino spectrum: Implications for measuring solar

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