Neutral V-particle from copper and carbon

Cooper, William A.; Filthuth, H.; Montanet, L.; Newth, J.A.; Petrucci, Guido; Salmeron, R.; Zichichi, A.

doi:10.1007/bf02828755

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…For the photons from the subsequent no+2y decay, there should be a definite relationship between energy and angle of emission relative to the n+ direction, depending on the known velocity of the no meson. Photons with energy and angle satisfying this relation have been observed for K,, events in multiplate cloud chambers (Courant 1955). This relation should also hold for an electron pair from the subsequent decay no-+y+e++e-and this has been verified in a number of events (e.g.…”

Section: I95mentioning

confidence: 69%

“…T h e earliest ' anomalous VO decay ' which allowed identification of the secondary particles was an event described by Cowan (1954). The positive secondary of the event itself underwent a decay consistent with the interpretation of r-p decay and was therefore identified as a .…”

Section: K O Decays With Identtjied Secondariesmentioning

confidence: 78%

“…. (1.4) was first established clearly by Cowan (1954). Its characteristic appearance is of a charged V decay, giving a negative pion, followed by a ho decay from the neutral secondary, giving rise to the descriptive title ' cascade ' hyperon.…”

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confidence: 97%

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K Mesons and Hyperons their strong and weak interactions

Dalitz

1957

Rep. Prog. Phys.

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This article surveys our empirical knowledge of the production processes, the nuclear interactions and the decay processes of K particles and hyperons, as this appeared at the close of 1956, and interprets these phenomena within the framework of the chargeindependent classification scheme proposed by Gell-Mann and by Nishijima for these ' strange particles '. T h e assignment of a ' strangeness ' quantum number to each strongly interacting particle is a deep-lying aspect of this scheme, and the main qualitative features of the empirical data allow a direct interpretation in terms of a law of conservation of strangeness through all strong interactions. Where appropriate, more detailed analyses of the phenomena are made on the assumption that charge independence holds for these strong interactions.The evidence on decay processes for K particles and hyperons is discussed in some detail. These processes violate the strangeness conservation law and also involve changes in the total isotopic spin for those cases where this quantity is relevant for the final particles.The success of Gell-Mann's AT = 8 rule in accounting for certain aspects of the decay data is considered for each of the latter cases ; this rule is given a simple origin in Schwinger's model for strange particle decay processes, which is discussed briefly. T h e implications of symmetry between particle and antiparticle, as pointed out by Gell-Mann and Pais for c and Planck's constant fi each have the value unity. However these symbols will sometimes be retained in the formulae in order to display the dimensional character of the quantities considered.

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Section: I95mentioning

confidence: 69%

Section: K O Decays With Identtjied Secondariesmentioning

confidence: 78%