B meson

noun

: any of a class of short-lived mesons that are thought to be a combination of one bottom antiquark and either an up, down, or strange quark

Note: B mesons are primarily useful for theoretical purposes, such as verifying proposed models that explain the natural laws of the universe.

Since then, independent teams … have been colliding tens of millions of electrons and their antimatter counterparts, positrons, looking for firm evidence of B meson CP violation.

Peter Weiss, Science News, 3 Mar. 2001

Answering that question has become The Next Big Thing in high-energy physics, and the quest is focusing on a short-lived, formerly obscure particle called the B meson that is produced in particle collisions.

Curt Suplee, Washington Post, 13 Oct. 1997

单词	B meson
释义	B meson noun : any of a class of short-lived mesons that are thought to be a combination of one bottom antiquark and either an up, down, or strange quark Note: B mesons are primarily useful for theoretical purposes, such as verifying proposed models that explain the natural laws of the universe. Since then, independent teams … have been colliding tens of millions of electrons and their antimatter counterparts, positrons, looking for firm evidence of B meson CP violation. Peter Weiss, Science News, 3 Mar. 2001 Answering that question has become The Next Big Thing in high-energy physics, and the quest is focusing on a short-lived, formerly obscure particle called the B meson that is produced in particle collisions. Curt Suplee, Washington Post, 13 Oct. 1997 Word History First Known Use 1977, in the meaning defined above
随便看	khanum khanums khaphs khapra beetle khar limit metula metulae metumps meturgeman meturgemans metwand Metycaine metycaines Metz metz coefficient metzograph meubles Meum meum et tuum meunière Meursault meursaults Meurthe meus Meuse

B meson

noun

Word History