Tests for a possible class ofCP invariant solutions to the $$K_L \to \mu \bar \mu $$ problem

Autor: J. C. Pati, W. Alles
Rok vydání: 1972
Předmět:
Zdroj: Il Nuovo Cimento A. 10:325-342
ISSN: 1826-9869
0369-3546
DOI: 10.1007/bf02895768
Popis: The possibility that the unitarity sum for the absorptive part of the\(K_L \to \mu \bar \mu \) amplitude receives contribution in aCP-invariant manner from an on-mass-shell intermediate state involving a yet undetected light neutral boson (we call itx0) is considered. It is suggested that the most relevant intermediate state is thex0λ state withx0 having spin-parity 1−. It is pointed out that the existence of such a particle, if it is not already excluded by present experiments, can be tested unambiguously and relatively easily by two experiments:a) the measurement of the rate of the KL→x0+λ decay (thex0 may be looked for easily via its decays to (e−e+) and (μ−μ+) systems), andb) the production of thex0 by low-invariant-mass (e−e+) colliding-beam experiments. It is noted that thex0, if it exists, receives a «natural» interpretation only in framework of hadron symmetries higher than the familiarSU3-group. The production ofx0 by a host of production and decay processes is discussed subject to such an interpretation.
Databáze: OpenAIRE