Heavy Fermions in the Standard Sequential Scheme

Fujikawa, Kazuo

doi:10.1143/PTP.61.1186

Heavy Fermions in the Standard Sequential Scheme

Kazuo Fujikawa
(
- INS, Tokyo
)

Nov, 1978

21 pages

Published in:

Prog.Theor.Phys. 61 (1979) 1186

DOI:

10.1143/PTP.61.1186

Report number:

INS-322

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Abstract: (Oxford Journals)

Some of the qualitatively new features associated with the possible existence of heavier Fermions in the standard sequential scheme are discussed. As for the heavy Fermions with masses less than the W-boson mass M_W, the weak decay of constituent quarks in the lowest ^3S_1 state of the heavy quarkonium is expected to become appreciable for M_Q ≳ 20 GeV and its implications are studied. We then discuss the stability of the Higgs mechanism in the presence of superheavy Fermions with masses greater than M_W. The weak interaction mediated by the W-boson in general becomes strong for such heavy objects, but some of the models such as the vector-like scheme could lead to a dynamically stable limit for superheavy Fermions.

POSTULATED PARTICLE: HEAVY LEPTON
HEAVY LEPTON: MASS
MASS: HEAVY LEPTON
HEAVY LEPTON: LIFETIME
HEAVY LEPTON: DECAY WIDTH
QUARK: SEXTET
QUARK: QUARKONIUM
QUARK: LEPTONIC DECAY
LEPTONIC DECAY: QUARK
WEAK INTERACTION

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