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The ATLAS and CMS experiments have observed a process 4,000 times rarer than the production of Higgs bosons. The ATLAS and CMS experiments have successfully detected the production of a quartet of top quarks during high-energy proton collisions inside the Large Hadron Collider. Four-top production is 4,000 times less common than even the production of Higgs bosons. “It’s just incredible that we’re able to observe this process,” says Nedaa Alexandra Asbah, a postdoc at Harvard. Top quarks are the most massive fundamental particles, weighing in at the same mass as a caffeine molecule. Scientists hope that by studying these chart-topping particles, they can learn more about the Higgs field, which gives quarks and other fundamental particles their masses. “Studying the four-top-quark production is a great way to look for new physics,” says Melissa Quinnan, a postdoc at the University of California, San Diego.  The Standard Model of particle physics, the best model...
a year ago

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