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Limiting the effective magnetic moment of solar neutrinos with the Borexino detector
| Content Provider | Scilit |
|---|---|
| Author | Ludhova, L. |
| Copyright Year | 2020 |
| Description | Journal: Journal of Physics: Conference Series Borexino has provided an updated upper limit on the effective neutrino magnetic moment of solar neutrinos $μ_{β}$α < 2.8 x $10^{−11}$ $μ_{औ}$ at 90% C.L. This result represents nearly a factor of two improvement with respect to the previous result based on 192 days of the Phase-I data. The current analysis has been performed using 1291.5 days exposure of the Phase-II data, characterized by a further improved level of radio-purity of liquid scintillator. Another key ingredient of the new analysis, lowering the threshold from 260 to 186 keV, was possible thanks to a better understanding of the detector-response function at low energies. The global spectral fit was preformed up to 2970 keV energy, using constraints on the sum of the solar neutrino fluxes implied by the radiochemical gallium experiments. From the limit for the effective neutrino magnetic moment, new limits for the magnetic moments of the neutrino flavour states were derived. |
| Related Links | https://iopscience.iop.org/article/10.1088/1742-6596/1342/1/012033/pdf |
| ISSN | 17426588 |
| e-ISSN | 17426596 |
| DOI | 10.1088/1742-6596/1342/1/012033 |
| Journal | Journal of Physics: Conference Series |
| Issue Number | 1 |
| Volume Number | 1342 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics: Conference Series Nuclear Physics Particles and Fields Physics Solar Neutrinos Effective Magnetic Moment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
