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• n  a meson involved in holding the nucleus together; produced as the result of high-energy particle collision

• For a fleeting instant, one positive and one negative pion cling to the uncharged pion, forming a single unit.
• If the field had been uneven for any reason, the higher positive-pion energy levels detected at Brookhaven might well have been erroneous.
• But 53% of the time, the positive pion zipped across the bubble chamber with more energy than its negative antiparticle.

• pi-meson

News & Articles

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• Overtime
  Evans' Eunice Yi sits in third place after shooting 2-over-par 74 in the first round of the Georgia Girls' Championship at Atlanta Athletic Club.
  June 18, 2013 - The Augusta Chronicle

Quotes

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• Doris Lessing in Los Angeles Times
  What I would like to be writing,Lessing wrote in 1983, "is the story of the Red and White Dwarves and their Remembering Mirror, their space rocket (powered by anti-gravity), their attendant entities Hadron, Gluon, Pion, Lepton, and Muon,...
• Mara Yamauchi in Independent
  It's really exciting to be in the same race as Takahashi,Yamauchi said, "not just because she's a former Olympic cham-pion but also because I've learned a lot from books written by her, by her former coach and by her nutritionist, about...