Electroweak interactions on the lattice
Kieu, T D
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LATTICE FIELD THEORY; CHIRAL SYMMETRY; WEINBERG LEPTON MODEL; QUANTIZATION; FERMIONS; FEYNMAN PATH INTEGRAL; SPACE-TIME; THEORETICAL DATA; 662110; 662310; THEORY OF FIELDS AND STRINGS; WEAK AND ELECTROMAGNETIC INTERACTIONS OF LEPTONS
It is shown that the lattice fermion doubling phenomenon is connected to the chiral anomaly which is unique to the electroweak interactions. The chiral anomaly is the breaking of chiral gauge symmetry at the quantum level due to the quantum fluctuations. Such breaking, however, is undesirable and to be avoided. The preservation of gauge symmetry imposes stringent constraints on acceptable chiral gauge theory. It is argued that the constraints are unnecessary because the conventional quantization of chiral gauge theory has missed out some crucial contributions of the chiral interactions. The corrected quantization yields consistent theory in which there is no gauge anomaly and in which various mass terms can be introduced with neither the loss of gauge invariance nor the need for the Higgs mechanism. The new quantization also provide a solution to the difficulty of how to model the electroweak interactions on the lattice. 9 refs. 1 fig.
Melbourne Univ., Parkville, VIC (Australia). School of Physics
OSTI; NTIS (US Sales Only); INIS
Australia
1994-07-01
English
Technical Report
Numerical Data
Other Information: PBD: Jul 1994
Medium: X; Size: 6 p.
ON: DE95616287
UM-P-94/74; RCHEP-94/22.
Other: ON: DE95616287; TRN: AU9414250017900
INIS; SCA: 662110; 662310; PA: AIX-26:017900; EDB-95:032228; SN: 95001330010
2008-02-12
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