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Final results on the neutrino magnetic moment from the MUNU experiment

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arxiv hep-ex/0502037 v2 pith:NZQRODFF submitted 2005-02-19 hep-ex

The MUNU collaboration: Z. Daraktchieva , C. Amsler , M. Avenier , C. Broggini , J. Busto , C. Cerna , F. Juget , D.H.Koang
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J. Lamblin D. Lebrun O. Link G. Puglierin A. Stutz A. Tadsen J.-L. Vuilleumier V. Zacek
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classification hep-ex
keywords energyneutrinodatadetectorelectronexperimentfinalmagnetic
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The MUNU detector was designed to study neutrino-electron elastic scattering at low energy. The central component is a Time Projection Chamber filled with CF4 gas, surrounded by an anti-Compton detector. The experiment was carried out at the Bugey (France) nuclear reactor. In this paper we present the final analysis of the data recorded at 3 bar and 1 bar pressure. Both the energy and the scattering angle of the recoil electron are measured. From the 3 bar data a new upper limit on the neutrino magnetic moment was derived. At 1 bar electron tracks down to 150 keV were reconstructed, demonstrating the potentiality of the experimental technique for future applications in low energy neutrino physics.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Decoupling Neutrino Magnetic Moment from Mass with $SU(2)_L$ Invariance

    hep-ph 2025-06 reject novelty 7.0 of 10

    A loop-level neutrino magnetic moment is generated via an SU(2)_L adjoint fermion 'bridge', making the mass diagram vanish by tracelessness of the generators, though RG mixing limits the observable size.

  2. Prospect of the NUCLEUS Experiment at Chooz for Coherent Elastic Neutrino-Nucleus Scattering and New Physics Searches

    hep-ex 2026-03 conditional novelty 6.0 of 10

    Assuming the low-energy background can be eliminated, a 7-gram NUCLEUS detector at Chooz is projected to see coherent neutrino-nucleus scattering at 4.7σ in one year and to set competitive bounds on new neutrino interactions.

  3. Constraints on millicharged particles from nuclear gamma-decays

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Nuclear gamma cascades in reactors produce millicharged particle pairs, giving the strongest constraints on millicharge for masses between 0.7 and 2 MeV.

  4. Elastic neutrino-electron scattering perspectives at nuclear reactors

    hep-ph 2026-02 conditional novelty 5.0 of 10

    Projections show CLOUD and TAO could improve low-energy weak mixing angle measurements to 8-11% via elastic neutrino-electron scattering, with competitive magnetic moment and NSI limits.

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