phi meson

Related to phi meson: omega meson, eta meson, Vector meson

phi meson

An electrically neutral vector meson, having a mass 1,995 times that of an electron and a mean lifetime of about 1.5 × 10^-22 second.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

References in periodicals archive ?

But the new research, performed by Hideto En'yo and his colleagues at the KEK accelerator in Tsukuba, Japan, detected the mass lost within a nucleus by the phi meson, which consists of two tightly bound quarks.

The mystery of the missing mass

A Monte Carlo simulation was produced to better understand CLAS's backward angle detection of K mesons produced from the phi meson photoproduction process.