Limiting neutrino magnetic moments with Borexino Phase-II solar neutrino data

Agostini, M.; Altenmüller, K.; Appel, S.; Atroshchenko, V.; Bagdasarian, Z.; Basilico, D.; Bellini, G.; Benziger, J.; Bick, D.; Bonfini, G.; Bravo, D.; Caccianiga, B.; Calaprice, F.; Caminata, A.; Caprioli, S.; Carlini, M.; Cavalcante, P.; Chepurnov, A.; Choi, K.; Collica, L.; D’Angelo, D.; Davini, S.; Derbin, A.; Ding, Xuefeng; Lüdovico, A. Di; Noto, L. Di; Drachnev, I.; Fomenko, K.; Formozov, A.; Franco, D.; Froborg, F.; Gabriele, F.; Galbiati, C.; Ghiano, C.; Giammarchi, M.; Goretti, A.; Gromov, M.; Guffanti, D.; Hagner, C.; Houdy, T.; Hungerford, E.; Ianni, Aldo; Ianni, Andrea; Jany, A.; Jeschke, D.; Kobychev, V.; Korablëv, D.; Korga, G.; Kryn, D.; Laubenstein, M.; Litvinovich, E.; Lombardi, F.; Lombardi, P.; Ludhová, L.; Lukyanchenko, G.; Lukyanchenko, L.; Machulin, I.; Manuzio, G.; Marcocci, S.; Martýn, J.; Meroni, E.; Meyer, M.; Miramonti, L.; Misiaszek, M.; Muratova, V.; Neumair, B.; Oberauer, L.; Opitz, B.; Orekhov, V.; Ortica, F.; Pallavicini, M.; Papp, L.; Penek, Ö.; Pilipenko, N.; Pocar, A.; Porcelli, A.; Ranucci, G.; Razeto, A.; Re, A.; Redchuk, M.; Romani, A.; Roncin, R.; Rossi, N.; Schönert, S.; Semenov, D.; Skorokhvatov, M.; Smirnov, O.; Sotnikov, A.; Stokes, L. F. F.; Suvorov, Y.; Tartaglia, R.; Testera, G.; Thurn, J.; Toropova, M.; Unzhakov, E.; Vishneva, A.; Vogelaar, R. B.; Feilitzsch, F. von; Wang, H.; Weinz, S.; Wójcik, Marcin; Wurm, M.; Yokley, Z.; Zaimidoroga, O.; Zavatarelli, S.; Zuber, Κ.; Zuzel, G.

doi:10.1103/physrevd.96.091103

Cited by 172 publications

(198 citation statements)

References 30 publications

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“…Recently, Borexino [20] expanded the analysis presented in Ref. [16] to include Phase-II solar neutrino data, and quoted distinct limits for different magnetic moments terms, which can be directly compared with ours.…”

Section: Resultssupporting

confidence: 54%

New limits on neutrino magnetic moment through nonvanishing 13-mixing

Guzzo¹,

Holanda²,

Peres³

2018

Phys. Rev. D

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The relatively large value of the neutrino mixing angle θ 13 set by recent measurements allows us to use solar neutrinos to set a limit on the neutrino magnetic moment involving the second and third flavor families, μ 23 . The existence of a random magnetic field in the solar convective zone can produce a significant antineutrino flux when a nonvanishing neutrino magnetic moment is assumed. Even if we consider a vanishing neutrino magnetic moment involving the first family, electron antineutrinos are indirectly produced through the mixing between the first and third families and μ 23 ≠ 0. Using KamLAND limits on the solar flux of electron antineutrino, we set the limit μ 23 < 0.95 × 10 −11 μ B as a reasonable assumption on the behavior of solar magnetic fields. This is the first time that a limit on μ 23 has been established in the literature directly from neutrino interactions with magnetic fields, and, interestingly enough, is comparable with the limits on the neutrino magnetic moment involving the first family and with the ones coming from modifications to the electroweak cross section.

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Section: Resultssupporting

confidence: 54%

New limits on neutrino magnetic moment through nonvanishing 13-mixing

Guzzo¹,

Holanda²,

Peres³

2018

Phys. Rev. D

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“…Thus, a Dirac ν 4 with a mass of 5 MeV would have µ ν4 = (1.6 × 10 −12 ) [ ℓ |U ℓ4 | 2 ] µ B [163]. The upper limits conventionally quoted for the neutrino interaction eigenstates are of order 10 −10 − 10 −11 )µ B from reactor and accelerator experiments, 3 × 10 −11 from the Borexino experiment [167], and of order (10 −11 − 10 −12 )µ B from limits on stellar cooling rates [13]. Since |U e1 | 2 , |U µ2 | 2 , and |U τ 3 | 2 are O(1), there is not a large difference between the usually quoted upper limits on "µ νe ", "µ νµ ", "µ ντ ", and the upper limits on µ νi with i = 1, 2, 3.…”

Section: B Limit On Exotic µ Decay Modesmentioning

confidence: 99%

Constraints on sterile neutrinos in the MeV to GeV mass range

2019

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A detailed discussion is given of the analysis of recent data to obtain improved upper bounds on the couplings |Ue4| 2 and |Uµ4| 2 for a mainly sterile neutrino mass eigenstate ν4. Using the excellent agreement among Ft values for superallowed nuclear beta decay, an improved upper limit is derived for emission of a ν4. The agreement of the ratios of branching ratios R (π) e/µ = BR(π + → e + νe)/BR(π + → µ + νµ), R (K) e/µ , R (Ds) e/τ , R (Ds) µ/τ , and R (D)e/τ , and the branching ratios BR(B + → e + νe) and BR(B + → µ + νµ) decays with predictions of the Standard Model, is utilized to derive new constraints on ν4 emission covering the ν4 mass range from MeV to GeV. We also discuss constraints from peak search experiments probing for emission of a ν4 via lepton mixing, as well as constraints from pion beta decay, CKM unitarity, µ decay, leptonic τ decay, and other experimental inputs.

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“…In this scattering process with the whole atom, that has not beeen observed so far, the electrons tend to screen the weak charge of the nucleus as seen by the electron antineutrino probe. Finally, we study the sensitivity of this apparatus to a possible electron neutrino magnetic moment and we find that it is possible to set an upper limit of about µ ν < 7 × 10 −13 µ B , at 90 % C.L., that is more than one order of magnitude smaller than the current experimental limits from GEMMA [5] and Borexino [6].…”

mentioning

confidence: 90%

“…The most stringent constraints on the effective neutrino magnetic moment are obtained with the reactor antineutrinos (GEMMA Collaboration [5]) µ ν < 2.9 × 10 −11 µ B , and solar neutrinos (Borexino Collaboration [6]) µ νe ≤ 2.8 × 10 −11 µ B . It should be noted, that the magnetic and electric moments measured in these experiments are not those of massive neutrinos, but they are effective moments and they account for the neutrino mixing and oscillations during the propagation between source and detector [7,8].…”

mentioning

confidence: 99%