Probing neutrino magnetic moment at the Jinping neutrino experiment

Neutrino magnetic moment (nu MM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the XENON1T collaboration might indicate a similar to 2.2 x 10(-11)mu(B) effective neutrino magnetic moment (mu(eff)(nu)) from solar neutrinos. Therefore, it is essential to carry out the nu MM searches at a different experiment to confirm or exclude such a hypothesis. We study the feasibility of doing nu MM measurement with 4 kton fiducial mass at Jinping neutrino experiment (Jinping) using electron recoil data from both natural and artificial neutrino sources. The sensitivity of mu(eff)(nu) can reach < 1.2x10(-11)mu B at 90% C.L. with 10-year data taking of solar neutrinos. Besides the abundance of the intrinsic low energy background C-14 and Kr-85 in the liquid scintillator, we find the sensitivity to nu MM is highly correlated with the systematic uncertainties of pp and Kr-85. Reducing systematic uncertainties (pp and Kr-85) and the intrinsic background (C-14 and Kr-85) can help to improve sensitivities below these levels and reach the region of astrophysical interest. With a 3 mega-Curie (MCi) artificial neutrino source Cr-51 installed at Jinping neutrino detector for 55 days, it could give us a sensitivity to the electron neutrino magnetic moment (mu(nu e)) with < 1.1 x 10(-11)mu(B) at 90% C.L.. With the combination of those two measurements, the flavor structure of the neutrino magnetic moment can be also probed at Jinping.