On bottom mixing with exotic quarks | Zendy

F. M. L. Almeida | Zendy; J. A. Martins Simões | Zendy

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On bottom mixing with exotic quarks

Author(s) -

F. M. L. Almeida,

J. A. Martins Simões

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/03/025

Subject(s) - mixing (physics) , quark , particle physics , physics , quantum mechanics

In this paper we present a calculation of the effects of bottom mixing withnew exotic quarks in the forward-backward and left-right asymmetries, thebottom branching ratio and the QCD coupling constant. A global fit with therecent data on these quantities is done and stringent bounds are obtained. Wediscuss the effects of different isospin signatures for the new possible exoticquarks. The consequences for superstrig-inspired $E_6$ models are discussed.Constraints on the bottom mixing with the isosinglet quarks of the fundamental27-plet are presented.Comment: 6 pages, 2 Tables, LaTe

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