Can nonstandard neutrino interactions explain the XENON1T spectral excess?
We perform a constrained spectral fit analysis of the excess observed in the electron recoil energy spectrum by XENON1T with neutrino magnetic moment, charge radius, neutrino millicharge and new light vector and scalar mediators. Within limits allowed by other laboratory experiments we find that the...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320305852 |
| _version_ | 1819006459286913024 |
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| author | Amir N. Khan |
| author_facet | Amir N. Khan |
| author_sort | Amir N. Khan |
| collection | DOAJ |
| description | We perform a constrained spectral fit analysis of the excess observed in the electron recoil energy spectrum by XENON1T with neutrino magnetic moment, charge radius, neutrino millicharge and new light vector and scalar mediators. Within limits allowed by other laboratory experiments we find that the excess can be explained in the range (2−4)×10−11μB for the magnetic moment, (2−6)×10−31 cm2 for the charge radius, (1.7−2.3)×10−12e for the millicharge and (10−100) keV masses of light mediators with couplings of 3.5×10−7 for vector/axial-vector, 1×10−6 and 4×10−6 for scalar and pseudo-scalar mediators respectively. Among all neutrino millicharge, magnetic moment and vector mediators fit better to the observed spectrum. We also derive constraints on all new physics parameters considered here. |
| first_indexed | 2024-12-21T00:09:01Z |
| format | Article |
| id | doaj.art-a813c055d0924093af572551e20f054a |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-21T00:09:01Z |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-a813c055d0924093af572551e20f054a2022-12-21T19:22:24ZengElsevierPhysics Letters B0370-26932020-10-01809135782Can nonstandard neutrino interactions explain the XENON1T spectral excess?Amir N. Khan0Max-Planck-Institut für Kernphysik, Postfach 103980, D-69029 Heidelberg, GermanyWe perform a constrained spectral fit analysis of the excess observed in the electron recoil energy spectrum by XENON1T with neutrino magnetic moment, charge radius, neutrino millicharge and new light vector and scalar mediators. Within limits allowed by other laboratory experiments we find that the excess can be explained in the range (2−4)×10−11μB for the magnetic moment, (2−6)×10−31 cm2 for the charge radius, (1.7−2.3)×10−12e for the millicharge and (10−100) keV masses of light mediators with couplings of 3.5×10−7 for vector/axial-vector, 1×10−6 and 4×10−6 for scalar and pseudo-scalar mediators respectively. Among all neutrino millicharge, magnetic moment and vector mediators fit better to the observed spectrum. We also derive constraints on all new physics parameters considered here.http://www.sciencedirect.com/science/article/pii/S0370269320305852 |
| spellingShingle | Amir N. Khan Can nonstandard neutrino interactions explain the XENON1T spectral excess? Physics Letters B |
| title | Can nonstandard neutrino interactions explain the XENON1T spectral excess? |
| title_full | Can nonstandard neutrino interactions explain the XENON1T spectral excess? |
| title_fullStr | Can nonstandard neutrino interactions explain the XENON1T spectral excess? |
| title_full_unstemmed | Can nonstandard neutrino interactions explain the XENON1T spectral excess? |
| title_short | Can nonstandard neutrino interactions explain the XENON1T spectral excess? |
| title_sort | can nonstandard neutrino interactions explain the xenon1t spectral excess |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320305852 |
| work_keys_str_mv | AT amirnkhan cannonstandardneutrinointeractionsexplainthexenon1tspectralexcess |