ON THE REACTION MECHANISM AND THE SELECTION RULE IN THE DOUBLE CHARGE EXCHANGE REACTION OF PIONS ON NUCLEI (DCX)-A STUDY OF THE CONNECTION BETWEEN THE 2β-DECAY AND DCX ON jP=O+ NUCLEI |
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| Authors: | CHING Cheng-rui HO Tso-hsiu ZHAO Wei-qin |
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| Affiliation: | 1. Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing, China;2. Institute of High Energy Physics, Academia Sinica, P.O. Box 918, Beijing, China |
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| Abstract: | It is shown that in the pion induced double charge exchange reaction on Jp=O+→O+ nuclei,there exists a possible new reaction mechanism π+(Δ0,Δ++)π- or π+(Δ-,Δ+)π- in so-called single step process,while that old speculative mechanism π+(N,Δ)π- or π+(N,Δ)π- is firbidden by a well-known selection rule which has been indicated in the theory of the nuclear 2β-decay. |
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