What Surprised Scientists About the Discovery of Neutral Currents?

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SUMMARY

The discovery of neutral currents in 1973 was not unexpected, as they had been predicted shortly before. Flavor-changing neutral currents, however, were predicted in 1973 and only confirmed in 2005 by the CDF collaboration. The discussion highlights the contrast between the discovery of neutral currents and the ongoing search for supersymmetric particles, emphasizing that the Weinberg-Salam model did not generate prior expectations, unlike the models associated with SUSY. Notable unexpected results include the clear observations of tetraquarks and pentaquarks, as reported in recent ALICE experiment findings.

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In 1973? They were predicted shortly before, they were not unexpected.
Flavor-changing neutral currents? Predicted 1973, found 2005 by CDF.

The https://home.cern/about/updates/2017/04/new-alice-results-show-novel-phenomena-proton-collisions is one of the few unexpected results.
Clear observations of tetraquarks and pentaquarks are nice as well.
 
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I was thinking the events of 1973, and the famous 'Are you Salam?... Get into the car. I have news for you. We have found neutral currents.' A very epic narrative: first a wrong limit causes the models to be discarded, and then the experimental mistake is corrected, the model revives, and finally it is confirmed. Still, very different from SUSY, as Weinberg-Salam model had not generated any expectation (It would seem that the expectation was http://inspirehep.net/record/42770?ln=es Salam-Ward or https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.28.1494 Glashow-Georgi ) and then no frustration neither.
 

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