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arXiv · 1906.12102

Borexino and General Neutrino Interactions

Amir N. Khan·Werner Rodejohann·Xun-Jie Xu
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Abstract

We derive constraints on all possible general neutrino-electron interactions (scalar, vector, pseudoscalar, axialvector and tensor) using the recent real time Borexino event rate measurements of $pp$, $pep$ and $^{7}Be$ solar neutrinos. The limits improve several previous ones from TEXONO and CHARM-II for incoming electron and muon neutrinos, and are the first ones for the tau flavor. 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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Amir N. Khan, Werner Rodejohann, Xun-Jie Xu. 2019-06-28. Borexino and General Neutrino Interactions. https://doi.org/10.1103/physrevd.101.055047

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