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25 April 2024

» arxiv » hep-ph/0507017

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Puzzle of W Leptonic Decay Branching Fractions and Gauge Model of Generation Nonuniversality
Xiao-Yuan Li ; Ernest Ma ;
Date:	1 Jul 2005
Subject:	hep-ph
Affiliation:	ITP Beijing) and Ernest Ma (UC Riverside
Abstract:	Lepton generation universality holds very well in Z decays, but appears to be violated in recent LEP data of W leptonic decay branching fractions. If this trend persists, a consistent and natural explanation is a model of generation nonuniversality, based on the gauge group SU(2)_L X U(1)_R X U(1)_{B-L}.
Source:	arXiv, hep-ph/0507017
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