1st sign of elusive ‘triangle singularity’ shows particles swapping identities in mid-flight September 9, 2021 Ben Gilberti Leave a comment https://www.livescience.com/first-evidence-triangle-singularity?utm_source=SmartBrief&utm_medium=email&utm_campaign=368B3745-DDE0-4A69-A2E8-62503D85375D&utm_content=61987E25-277E-4F85-A444-350E7A5986AA&utm_term=f217a4ae-6d0f-4199-9972-20399b2c6139 “The particles involved exchanged quarks and changed their identities in the process,”