phi meson


Also found in: Dictionary, Wikipedia.
Related to phi meson: omega meson, eta meson, Vector meson

phi meson

[′fī ′mā‚sän]
(particle physics)
A neutral vector meson resonance, having a mass of about 1019.4 MeV, a width of about 4.6 MeV, and negative charge parity and G parity.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
En'yo and his colleagues measured the particles masses by firing protons at targets of either carbon or copper, creating showers of particles that included phi mesons. The particles decayed quickly, and by carefully measuring the energies of decay products, the scientists calculated the phi mesons' masses.
Li, "Seeing phi mesons through dileptons," Nuclear Physics A, vol.