CONTRIBUTIONS OF NUCLEAR CORE POLARIZATION TO Ovββ DECAY OF <sup>48</sup>Ca MEDIATED BY HEAVY NEUTRINO

Chin. Phys. Lett.

1990, Vol. 7

Issue (2): 57-60 DOI:

Original Articles

CONTRIBUTIONS OF NUCLEAR CORE POLARIZATION TO Ovββ DECAY OF ⁴⁸Ca MEDIATED BY HEAVY NEUTRINO

SONG Hongqiu;WU Huifang^*

Institute of Nuclear Research, Academia Sinica, Shanghai 201800 ^*Institute of High Energy Physics, Academia Sinica, Beijing 100039

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SONG Hongqiu, WU Huifang 1990 Chin. Phys. Lett. 7 57-60

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Abstract Nuclear core polarization processes in the Ovββ decay of ⁴⁸Ca are discussed in a diagrammatic effective operator approach. The main effect of these processes is to increase the limit on heavy neutrino mass of about 8%.

Keywords: 23.40.-s

Published: 01 February 1990

PACS:

23.40.-s

(β-decay;double β-decay; electron and muon capture)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1990/V7/I2/057

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