sin2 θ W estimate and neutrino electromagnetic properties from low-energy solar data

Khan, A.

doi:10.1088/1361-6471/ab0057

Cited by 16 publications

(14 citation statements)

References 54 publications

(129 reference statements)

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“…The validity of the χ 2 model used here has been cross-checked for estimating the neutrino magnetic moments for the same data in Ref. [37]. The results of that work are in good agreement with those obtained by Borexino in Ref.…”

Section: B Borexino Event Rate Calculations and The χ 2 Modelsupporting

confidence: 82%

Borexino and general neutrino interactions

Khan

Rodejohann

2020

Phys. Rev. D

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We derive constraints on all possible general neutrino-electron interactions (scalar, vector, pseudo-scalar, axial-vector and tensor) using the recent real time Borexino event rate measurements of pp, pep and 7 Be solar neutrinos. Some of the limits improve from TEXONO and CHARM-II for incoming electron and muon neutrinos while the rest remains weaker for Borexino and those for the tau flavor are the first ones. Future improvements by next-generation solar neutrino experiments are also studied. The limits extend the physics reach of solar neutrino measurements to TeV-scale physics. Finally, the different properties of the new interactions for Dirac and Majorana neutrinos are discussed.

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Section: B Borexino Event Rate Calculations and The χ 2 Modelsupporting

confidence: 82%

Borexino and general neutrino interactions

Khan

Rodejohann

2020

Phys. Rev. D

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“…However, the neutrino source 51 Cr can only contribute the ν e MM. Therefore, the signal of 51 Cr can significantly break the structure of ν e , ν µ and ν τ magnetic moment in solar neutrinos, which was also presented previously in [25,52], when combined with solar neutrino signal. In this case, the probing of ν e MM will be more sensitive than the other two neutrino flavors.…”

Section: Cr Neutrino Signalssupporting

confidence: 73%

Probing neutrino magnetic moment at the Jinping neutrino experiment

Yue

Liao

Ling

2021

J. High Energ. Phys.

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Neutrino magnetic moment (νMM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the XENON1T collaboration might indicate a ∼ 2.2 × 10−11μB effective neutrino magnetic moment ($$ {\mu}_{\nu}^{\mathrm{eff}} $$ μ ν eff ) from solar neutrinos. Therefore, it is essential to carry out the νMM searches at a different experiment to confirm or exclude such a hypothesis. We study the feasibility of doing νMM measurement with 4 kton fiducial mass at Jinping neutrino experiment (Jinping) using electron recoil data from both natural and artificial neutrino sources. The sensitivity of $$ {\mu}_{\nu}^{\mathrm{eff}} $$ μ ν eff can reach < 1.2 × 10−11μB at 90% C.L. with 10-year data taking of solar neutrinos. Besides the abundance of the intrinsic low energy background 14C and 85Kr in the liquid scintillator, we find the sensitivity to νMM is highly correlated with the systematic uncertainties of pp and 85Kr. Reducing systematic uncertainties (pp and 85Kr) and the intrinsic background (14C and 85Kr) can help to improve sensitivities below these levels and reach the region of astrophysical interest. With a 3 mega-Curie (MCi) artificial neutrino source 51Cr installed at Jinping neutrino detector for 55 days, it could give us a sensitivity to the electron neutrino magnetic moment ($$ {\mu}_{\nu_e} $$ μ ν e ) with < 1.1 × 10−11μB at 90% C.L. . With the combination of those two measurements, the flavor structure of the neutrino magnetic moment can be also probed at Jinping.

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“…To compare our results with current limits on TMMs, we analyze the recent solar neutrino data from Borexino phase-II [58] (see also Refs. [77][78][79]). In this case, the expression for the effective neutrino magnetic moment for solar neutrinos, in the mass basis is given by [49]…”

Section: Comparison With the Current Borexino Limitmentioning

confidence: 99%

Probing neutrino transition magnetic moments with coherent elastic neutrino-nucleus scattering

Miranda

Papoulias

Tórtola

et al. 2019

J. High Energ. Phys.

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We explore the potential of current and next generation of coherent elastic neutrinonucleus scattering (CEνNS) experiments in probing neutrino electromagnetic interactions. On the basis of a thorough statistical analysis, we determine the sensitivities on each component of the Majorana neutrino transition magnetic moment (TMM), |Λ i |, that follow from low-energy neutrino-nucleus experiments. We derive the sensitivity to neutrino TMM from the first CEνNS measurement by the COHERENT experiment, at the Spallation Neutron Source. We also present results for the next phases of COHERENT using HPGe, LAr and NaI[Tl] detectors and for reactor neutrino experiments such as CONUS, CONNIE, MINER, TEXONO and RED100. The role of the CP violating phases in each case is also briefly discussed. We conclude that future CEνNS experiments with low-threshold capabilities can improve current TMM limits obtained from Borexino

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sin² θ _W estimate and neutrino electromagnetic properties from low-energy solar data

Cited by 16 publications

References 54 publications

Borexino and general neutrino interactions

Borexino and general neutrino interactions

Probing neutrino magnetic moment at the Jinping neutrino experiment

Probing neutrino transition magnetic moments with coherent elastic neutrino-nucleus scattering

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