New top-flavor models with a seesaw mechanism | Zendy

Hong-Jian He | Zendy; Tim M. P. Tait | Zendy; C.–P. Yuan | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

New top-flavor models with a seesaw mechanism

Author(s) -

Hong-Jian He,

Tim M. P. Tait,

C.–P. Yuan

Publication year - 2000

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.62.011702

Subject(s) - particle physics , seesaw mechanism , physics , quark , lepton , seesaw molecular geometry , higgs boson , top quark , vertex (graph theory) , gauge boson , anomaly (physics) , mixing (physics) , physics beyond the standard model , neutrino , nuclear physics , gauge theory , mathematics , electron , combinatorics , graph , condensed matter physics , quantum mechanics

New class of models are constructed in which the third family quarks, but notleptons, experience a new SU(2) or U(1) gauge force. Anomaly cancellationenforces the introduction of spectator quarks so that the top and bottom massesare naturally generated via a seesaw mechanism. We find the new contributionsto the (S,T,U) parameters and Zbb vertex to be generically small. We furtheranalyze how the reasonable flavor mixing pattern can be generated to ensure thetop-seesaw mechanism and sufficiently suppress the flavor-changing effects forlight quarks. Collider signatures for the light Higgs boson and top quark arealso discussed.Comment: To match the version in Rapid Communication of PRD, RevTex 5p

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research