The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We have obtained a new limit on the electron neutrino effective charge radius from a new evaluation of the weak mixing angle by a combined fit of all electron–(anti)neutrino electron elastic scattering measurements. Weak mixing angle is found to be sin2θW=0.259±0.025 in the low energy regime below 100 MeV. The electron neutrino charge radius squared is bounded to be in the range −0.13×10−32 cm2<〈rνe2〉<3.32×10−32 cm2 at 90% C.L. Both results improve previously published analyses. We also discuss perspectives of future experiments to improve these constraints.