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Abstract
A dispertion relation for the process ω→π+γ is obtained by the analytical continuation in the ω mass. Some problems concerning dispertion relations involving unstable particles arc discussed. Under simplified assumptions we obtain Wω→π+r/Wω→3π≈0.35 and Wη→π+r/Wη→3π≈25, if η has the same quantum numbers as ω. The effect of the interaction in pairs between three pions is included in the calculation.
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DAI YUAN-BEN

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[2]	CHEN XI-YOU, DENG ZHI-FANG.A PROPOSED PROCEDURE FOR DETERMINATION THE DECAY WIDTH Γ_X→2γOF THE NEW PARTICLE X(2800) TO 2γ BY COULUMB PHOTOPRODUCTION OF THIS PARTICLE. Acta Physica Sinica, 1977, 26(1): 9-15.doi:10.7498/aps.26.9
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[4]	LI XIAO-LIN, WANG JIA-JUN, WANG XIAO-GUANG.ANALYSIS ON THE DECAY PROCESSES OF THE NEW PARTICLE J(3095). Acta Physica Sinica, 1977, 26(1): 1-8.doi:10.7498/aps.26.1
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Vol. 20, Issue 2 - 1964-01-20

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