PION-SINGLE-CHARGE-EXCHANGE CONTRIBUTION TO NEUTRINOLESS DOUBLE BETA DECAY

WU Hui-Fang; SONG Hong-Qiu

Chinese Physics C> 1989, Vol. 13> Issue(8) : 714-718

PION-SINGLE-CHARGE-EXCHANGE CONTRIBUTION TO NEUTRINOLESS DOUBLE BETA DECAY

WU Hui-Fang ^, ,
SONG Hong-Qiu

Institute of High Energy Physics,Academia Sinica,BeijingInstitute of Nuclear Rescarch,Academia Sinica,Shanghai

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Abstract：
In this paper we calculate the contribution to the amplitude of 0νββ decay,which is mediated by the heavy neutrino,from the mechanism of pion-single-charge-exchange and compare it with the contribution from the mechanism of the pion-double-charge-exchange.We find that the substantial contribution of the pion degree of freedom to 0νββ decay in nuclei is only from the mechanism of the pion-double-charge-exchange.

References

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A. Halprin, P. Minkowski, H. Primakoff and S. F. Rosen, Phys. Rev, D13(1976), 2567.[2] J. D. Vergados. Phys. Rev, D25(1982) 914; Nucl. Phys. B218(1983), 109.[3] Wu Hui-fang, Chincrc Phys. Lett., 2(1985), 505.[4] M. Doi, T. Kotani and E. Takasugi; Progress of Theor. Phys. Supplement 83(1985), 1.[5] H. F. Wu, H. Q. Song, T. T. S. Kuo, W. K. Cheng and D. Strotman, Phys. Lett., 162B(1985), 227

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WU Hui-Fang and SONG Hong-Qiu. PION-SINGLE-CHARGE-EXCHANGE CONTRIBUTION TO NEUTRINOLESS DOUBLE BETA DECAY[J]. Chinese Physics C, 1989, 13(8): 714-718.

WU Hui-Fang and SONG Hong-Qiu. PION-SINGLE-CHARGE-EXCHANGE CONTRIBUTION TO NEUTRINOLESS DOUBLE BETA DECAY[J]. Chinese Physics C, 1989, 13(8): 714-718. shu

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Received: 1900-01-01
Revised: 1900-01-01

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