preon


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preon

(ˈpriːɒn)
n
a hypothetical component of a quark
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Therefore, a natural explanation for the replication of the SM fermionic families is lepton and quark compositeness, in which both matter and antimatter elementary particles have a substructure called preon [2].
In a crazy Championship it is a very brave pundit who can make sweeping - and Apocalyptic - preon 90 minutes, 45 of whbad.
E-mail: vny@mssl.uc.ac.uk Table 1: Simple preon-based structures Number of colour Constituents of charges in the Structure the structure structure The pimitive particle (preon II) [PI] 1[PI] 1 First-order structures (combinations of preons) [PI] 2[PI] 2 [g.sup.o] 1[PI] + 1[PI] 2 Y 3[PI] 3 Second-order structures (combinations of tripoles Y) [delta] 2Y 6 [gamma] 1Y + 1Y 6 [e.sup.-] 3Y 9 Third-order structures 2[e.sup.-] 3Y + 3Y 9 + 9 = 18 [e.sup.-][e.sup.+] 3Y + 3Y 9 + 9 = 18 [v.sub.e] 6YY 6x(3 + 3) = 36 [Y.sub.1] [v.sub.e] + Y 36 + 3 = 39 [W.sup.-] [v.sub.e] + [e.sup.-] 36 + 9 = 45 u [Y.sub.1] [??] [Y.sub.1] 39 + 36 + 39 = 114 [v.sub.[mu]] [Y.sub.1] [??] [Y.sub.1] 39 + 36 + 39 = 114 d u + [W.sup.-] 114 + 45 = 159 [mu] [v.sub.[mu]] + [W.sup.-] 114 + 45 = 159 and so on...