English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Higgs boson may be a composite particle as Sakata vigorously looked fornever-ending substructures of Nature. He proposed the Sakata model for hadrons,which was the prototype of the quark model and thus lauched the last Revolutionin particle physics continued all the way up to Kabayashi-Maskawa work whichcompleted the Standard Model today. Inspired by the Sakata's spirit we shalldiscuss composite Higgs boson in various models of our own for the dynamicalsymmetry breaking with large anomalous dimension: The techni-dilaton in thewalking technicolor (WTC) with $\gamma_m \simeq 1$, the $\bar t t$ composite("top-Higgs") in the top-quark condensate model with $\gamma_m \simeq 2$, andtheir variants in the models with $1<\gamma_m <2$ (strong ETC Technicolor,etc.). Among others we will focus on WTC which has an approximate scalesymmetry in the region relevant to the dynamical mass generation. Such aconformal gauge dynamics is characterized by the essential singularity scaling,breakdown of the Ginzburg-Landau/Gell-Mann-Levy effective theory, and also by alarge anomalous dimension $\gamma_m =1$. In contrast to the folklore thatTechnicolor is a "Higgsless theory", there exists a composite Higgs,techni-dilaton, in the WTC as a composite pseudo Nambu-Goldstone bosonassociated with the spontaneously broken (approximate) scale symmetry, with itsmass only arising from the (nonperturbative) scale anomaly and hence being muchsmaller than those of other techni-hadrons. The techni-dilaton has a masstypically of order $500-600 {\rm GeV}$ and can be discovered at LHC. We shallalso touch upon the endeavor to discover WTC on the lattice.

Composite Avenue beyond the Standard Model - Legacy of Sakata in LHC Era