Charge Independence for V - particles

Assuming the charge independence. for V:particles, the qualitative features of these unstable heavy pal'ticles are investigated. In view of the present experimental mater:al, there seems to be three charge states for Vl : (1) Vl 0 : This particle has been most thoroughly investigated by many workers, and known to decay as Vl°--"p+n-+Q, Q-37 Mev. (2) V1+: This particle was discovered by the Pasadena gl'OUp.l) Vl+--"P+lt°+Q, Q-40Mev. (3) Vl-: One case was found in the cosmotroa experiments2) that seems to require' the existence of Vl -, although not conclusive. It is as yet not clear whether the isotopic spin of Vl is 1/2 or 1 or higher. We shall, however, tentatively assign it as equal to 1, since this case is of special interest. Then from the cosmotron exp,eriments,3) V4 ° or V2 0 which is tentatively, denotoo as H O should have a half integral 'isotopic spln4) . in reference to the process