Back in 2005, Uppsala Castle hosted a gala physics dinner where two MIT physics professors, Frank Wilczek and Janet Conrad got into some jokey trash talk about the existence (or not) of Higgs particles. Years later, neither one could clearly remember all the details, but one scribbled notepad recorded details of a bet between Frank and Janet about when, whether, and at what energy, a Higgs particle would be found.
Frank bet Nobel chocolate medals, at 100 to 10 odds, that CERN would find a Higgs before the end of 2012 with a mass less than 150 geV. And in July 2012, ATLAS, CMS, and Fermilab all announced finding the same Higgs-like signature at about 125 geV. So Janet conceded and gave Frank his prize: 10 golden Nobel chocolates, at another lovely festive event at Uppsala Castle.
And I even got one of these pieces of chocolate for having suggested the second Uppsala Castle Higgs particle party, as recorded in this YouTube of Frank’s talk there.
Although Frank was dubious about this party idea, I sent email to Uppsala physicist Antti Niemi, asking if he didn’t think Uppsala might enjoy being part of the end of this story — and the rest was history, by which I mean hard work by Antti and by Uppsala University’s Tord Ekelof to bring this idea to fruition. A very good time was had by all the participants, including an audience of about 500 people who came to hear talks by Tord, Frank, Janet, and Fabiola Gianotti, the head of ATLAS at CERN.