Properties of heavy unstable particles

Lal, D. ; Pal, Yash ; Peters, B. (1953) Properties of heavy unstable particles Physical Review, 92 (2). pp. 438-440. ISSN 0031-899X

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A block of emulsion consisting of unbacked emulsion sheets can be used as a very efficient detector for heavy unstable particles and provide favorable conditions for mass and energy determinations. The mass of the τ meson was obtained as mτ=3mp+Q, where Q=76.0±0.9 Mev. Fairly accurate mass values are obtained for the positive K meson and four examples of the capture of negative heavy mesons are presented, two of them leading to emission of a p meson. A charged particle of mass higher than that of a proton which decays in flight into a meson is discussed. In most of these cases the nuclear event giving rise to the heavy mesons could be observed. The Q value of the V10 particle was determined as 37±2 Mev and other examples which may represent the decay of neutral particles are discussed.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:36240
Deposited On:02 Jun 2011 14:47
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