The fresh new billed massive vector mediator in addition to massless photon would be to be the assess mesons
Just like the their pupil, We recognized their faith
The latest Yang-Mills SU(2) assess principle out-of 1954 was first (improperly however, interestingly) put on poor affairs by the Schwinger and you may Glashow in 1956, because the Glashow demonstrates to you in the Nobel honor award lecture:
‘Schwinger, dÄ›lÃ¡ coffee meets bagel prÃ¡ce since 1956, considered that brand new weakened and you will electromagnetic relations is going to be combined for the a gauge theory. . We utilized the new SU(2) evaluate correspondence away from Yang and you can Mills. Things needed to be install so that the billed current, yet not brand new simple (electromagnetic) most recent, do break parity and you can strangeness. Eg an idea is actually officially you can easily to construct, however it is each other unappealing and you may experimentally not true [H. Georgi and you can S. L. Glashow, Actual Comment Emails, twenty eight, 1494 (1972)].
‘Several other electroweak synthesis rather than simple currents was submit from the Salam and you may Ward when you look at the 1959. Again, it didn’t learn how to make use of the latest fresh reality away from parity ticket. By the way, for the a continuation of the work with 1961, it suggested a measure principle off solid, weak and you can electromagnetic connections in line with the local balance class SU(2) x SU(2) [A great. Salam and J. Ward, Nuovo Cimento, 19, 165 (1961)]. It was an amazing portent of the SU(3) x SU(2) x U(1) model which is approved today.
‘We started to personal performs carried out in Copenhagen in 1960, and complete alone by the Salam and you can Ward. We eventually spotted that a measure group larger than SU(2) is necessary to describe this new electroweak interactions. (more…)