Quest for the Dynamical Origin of Mass - An LHC perspective from Sakata, Nambu and Maskawa

Details Quest for the Dynamical Origin of Mass - An LHC perspective from Sakata, Nambu and Maskawa Quest for the Dynamical Origin of Mass - An LHC perspective from Sakata, Nambu and Maskawa

2009-07-30

arxiv.org/abs/0907.5277v1

Prog.Theor.Phys.Suppl.180:1-19,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 figures, Talk presented on Jan. 26, 2009 at Yukawa International Seminar (YKIS) "Particle Physics beyond the Stand

Scientific paper

10.1143/PTPS.180.1

I review the dynamical symmetry breaking (DSB) approach to the Origin of Mass, which is traced back to the original (2008 Nobel prize) work of Nambu based on the BCS analogue of superconductor where mass of nucleon (then elementary particle) arises due to Cooper paring and pions are provided as massless Nambu-Goldstone (NG) bosons, being composite as in Fermi-Yang/Sakata model. In this talk I will focus on the modern version of DSB or composite Higgs models: Walking/Conformal Technicolor, Hidden Local Symmetry (HLS) or Moose, and Top Quark Condensate, with the their extra dimension versions closely related with HLS. Particular emphasis will be placed on the large anomalous dimension and conformal symmetry at the conformal fixed points, developed along the line of the pioneering work of Maskawa and Nakajima. Due to (approximate) conformal symmetry these models do have composite Higgs particle ("Techni-dilaton", "Top-sigma" etc.). Weakly coupled composite gauge boson is realized at "Vector Manifestation" formulated at conformal fixed point, which may be applied to the composite W/Z boson models. They will be tested in the upcoming LHC experiments.

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