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Mass reversal and lepton processes

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Il Nuovo Cimento (1955-1965)

Summary

It is shown that the special mass reversals ME(1) and MK(2) can be applied to the Fermi type interactions without any internal contradiction in the theory. The selection rules obtained are consistent with the experiments. This suggests to take the universal Fermi interactions as the most probable primary interactions for all the weak interactions. From the mass reversibility of the theory under MR(1), it is concluded that the space parity is not conserved in all the weak interactions, and all the lepton processes must involve at least one neutrino whose mass must be exactly zero. From the requirement of MR(2), either a linear combination of (STP) couplings or a linear combination of (AV) couplings is shown to be allowed. The theory admits an interesting case that one can introduce two neutrinos which can play a similar role as « Twin » neutrinos, and the baryons are conserved automatically.

Riassunto

Si dimostra che le inversioni di massa speciali MR(1) e MR(2) si possono applicare alle interazioni di tipo Fermi senza alcuna contraddizione interna nella teoria. Le regole di selezione ottenute sono compatibili con l’esperienza. CiÒ suggerisce di ritenere le interazioni universali di Fermi le più probabili interazioni primarie fra tutte le interazioni deboli. Dalla reversibilità di massa delia teoria rispetto ad MR(1) si conclude che la parità spaziale non è conservata in tutte le interazioni deboli e tutti i processi coinvolgenti leptoni debbono coinvolgere almeno un neutrino la oui massa deve essere esattamente nulla. Dal requisite di MR(2) si dimostra che è permessa o una combinazione lineare di accoppiamenti (STP) o una combinazione lineare di accoppiamenti (AV). La teoria ammette un caso interessante nel quale si possono introdurre due neutrini che possono avere una funzione simile come neutrini « gemelli » e i barioni sono conservati automaticamente.

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This is the revised version of the report which appeared inSoryushiron-Kenhyu (mimeographed circular in Japanese),14, 618 (1957).

On leave of absence from Hiroshima University.

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Ouchi, T., Senra, K. & Yonezawa, M. Mass reversal and lepton processes. Nuovo Cim 8, 708–716 (1958). https://doi.org/10.1007/BF02815250

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  • DOI: https://doi.org/10.1007/BF02815250

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