1. Magnetic moment of neutrino and deuteron reaction T. Sato (Osaka U.) Motivation Neutrino disintegration of deuteron by electromagnetic interaction Summary K. Tsuji, S. Nakamura, TS, F. Myhrer, K. Kubodera USC-Osaka collaboration

2. Min. extension of Standard Model Magnetic Moment of Neutrino Current experimental upper limit Neutrino-electron scattering: spectrum of recoil electron

3. Solar neutrino and SNO Total neutrino flux If neutrino has magnetic moment need theoretical estimation E. Akhmedov, V. Berezin Z. Phys. C54 (1992) J. Grifols, E. Masso, S. Mohanty hep-ph/0401144(2004),

4. Eliminate ‘virtual’ degree by unitary transformation Kobayashi et al. (97) Standard Nuclear Physics Approach on low energy electroweak reactions Effective nuclear Hamiltonian and current

5. Radiative neutron capture on proton M1 (d-> 1S0) E1 (d->3PJ) TS et al. (95), Rupak (00) first nuclear reaction in BBN, :

6. Neutrino-deuteron reaction Gamow-Teller (d-> 1S0) S. Nakamura et al. (01,02) Energy spectrum of recoil nucleon N. Tatara, Y.Kohyama, K.Kubodera (90) M. Butler, J.Chen, X. Kong (01) <- Triton beta-decay (Schiavilla et al.) S. Ando et al. (02) :

7. In this work by SNPA Possible effects of EM on neutrino flux Neutron energy spectrum

8. Neutrino disintegration of deuteron by Electromagnetic interaction Electromagnetic current of neutrino : Helicity Non-flip Flip T-matrix element

9. x E1 M1 E1:

10. Suppose Effect of EM in neutrino flux Ours

11. NC + EM Energy spectrum of recoil nucleon T NN

12. Summary