Z physics effects of an additional non-sequential bottom quark

Details Z physics effects of an additional non-sequential bottom quark Z physics effects of an additional non-sequential bottom quark

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..531..326m&link_type=abstract

PARTICLES AND FIELDS: Seventh Mexican Workshop. AIP Conference Proceedings, Volume 531, pp. 326-331 (2000).

Other

Unified Theories And Models Of Strong And Electroweak Interactions, Quark And Lepton Masses And Mixing, Charge Conjugation, Parity, Time Reversal, And Other Discrete Symmetries, Spontaneous And Radiative Symmetry Breaking, Decays Of Z Bosons

Scientific paper

We analyze the Zff vertex in the framework of models that add a new bottom quark in a non-sequential way and we evaluate the tree level contribution to the LEP/SLC observables ΓZ, Rb and Rl. We obtain bounds for the mixing angles from the experimentally allowed contour regions of the parameters ΛL,R introduced here. In order to get a more restrictive region, we consider the experimental results for B-->ννX as well. .

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