Constraints on Axial Two-Body Currents from Solar Neutrino Data

Abstract

We briefly review recent calculations of neutrino deuteron cross sections within the effective field theory and traditional potential model approaches. We summarize recent efforts to determine the counter term describing axial two-body currents, L_{1A}, in the effective field theory approach. We determine the counter term directly from the solar neutrino data and find several, slightly different, ranges of L_{1A} under different sets of assumptions. Our most conservative fit value with the largest uncertainty is L_{1A} = 4.5 +18/-12 fm^3. We show that the contribution of the uncertainty of L_{1A} to the analysis and interpretation of the solar neutrino data measured at the Sudbury Neutrino Observatory is significantly less than the uncertainty coming from the lack of having a better knowledge of θ_{13}.

5 pages of REVTEX4 with 4 figures

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Cited by in corpus (10)

• Nuclear effective field theory: status and perspectives
• Neutrino-nucleus interaction rates at a low-energy beta-beam facility
• Constraints on Neutrino Parameters from Neutral-Current Solar Neutrino Measurements
• Muon Capture on the Deuteron -- The MuSun Experiment
• Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators
• Fundamental measurements with muons - View from PSI
• A closer look at the $pp$-chain reaction in the Sun: Constraining the coupling of light mediators to protons
• Significance of neutrino cross-sections for astrophysics
• Neutrino astrophysics and its connections to nuclear physics
• Physics Potential of Solar Neutrino Experiments