quarkoniumn.
/kwɑːˈkəʊnɪəm/, U.S. /kwɑrˈkoʊniəm/ Particle Physics.
A meson consisting of a quark (usually a charm or a bottom quark) bound to the corresponding antiquark; (as a mass noun) matter consisting of such particles.
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the world > matter > physics > atomic physics > particle physics > quark > [noun] > bound to antiquark
quarkonium1977
the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > meson > [noun] > type of
tau1949
photomeson1950
theta1954
eta1961
omega meson1961
rho1961
phi meson1962
bottomonium1976
quarkonium1977
upsilon1977
1977 C. Quigg & J. L. Rossner in Physics Lett. B. 71 153/1 In this note we describe some features of the logarithmic potential as applied to quarkonium families.
1982 Sci. Amer. May 42/1 Quarkonium is closely analogous in structure to positronium.
1986 B. G. Duff Fund. Particles iv. 49 The b system has also been studied and a number of states observed..which are referred to as ‘beautyonium’. In general, such qq systems are called ‘quarkonia’.
1995 R. L. Amoroso & B. E. Martin in J. King & K. H. Pribram Scale in Conscious Experience xvi. 362 Complex numbers provide an excellent vehicle to demonstrate the interplay of the dimensions of 4-space with those of deeper quarkonium space.
2005 M. Lavelle tr. B. Povh & M. Rosina Scattering & Structures vi. 91 The masses of normal quarkonia lie around or above double the constituent quark mass.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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