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2014 Fiscal Year Final Research Report

Symmetry Breakings and the Gauge Dynamics

Research Project

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Project/Area Number 22224003
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionNagoya University

Principal Investigator

MASKAWA Toshihide  名古屋大学, 素粒子宇宙起源研究機構, 特別教授 (60022612)

Co-Investigator(Kenkyū-buntansha) YAMAWAKI Koichi  名古屋大学, 素粒子宇宙起源研究機構, 特任教授 (90135301)
TANABASHI Masaharu  名古屋大学, 基礎理論センター, 教授 (00270398)
HARADA Masayasu  名古屋大学, 理学研究科, 教授 (40311716)
NOJIRI Shin'ichi  名古屋大学, 理学研究科, 教授 (00432229)
MAEKAWA Nobuhiro  名古屋大学, 基礎理論センター, 准教授 (40273429)
HAYAKAWA Masashi  名古屋大学, 理学研究科, 准教授 (20270556)
TOBE Kazuhiro  名古屋大学, 理学研究科, 准教授 (20451510)
SAKAI Tadakatsu  名古屋大学, 理学研究科, 准教授 (50375359)
NONAKA Chiho  名古屋大学, 基礎理論センター, 准教授 (10432238)
AOKI Yasumichi  名古屋大学, 基礎理論センター, 准教授 (20292500)
MATSUZAKI Shinya  名古屋大学, 理学研究科, 特任助教 (20377956)
SHIBATA Akihiro  大学共同研究利用機関法人高エネルギー加速器研究機構, その他部局等, 講師 (30290852)
SOGAMI Ikuo  京都産業大学, 理学部, 名誉教授 (20065832)
Co-Investigator(Renkei-kenkyūsha) FUKAYA Hidenori  大阪大学, 理学研究科, 助教
Project Period (FY) 2010-04-01 – 2015-03-31
Keywords対称性の破れ / ゲージダイナミックス / ウォーキングテクニカラー / テクニディラトン / 複合ヒッグス / 格子ゲージ理論 / LHC / コンフォーマル対称性
Outline of Final Research Achievements

Although the Higgs particle responsible for the origin of mass has been discovered, its dynamical origin still remains mysterious. This project showed, based on the ladder approximation and also the holographic model, that the discovered Higgs particle is consistent with the composite particle “Technidilaton”predicted by the “Walking Technicolor.
We further made the first-principle calculations of lattice QCD simulations and found that flavor 8 QCD is a candidate for the Walking Technicolor, the result later confirmed by other groups. We also discovered light flavor-singlet scalar meson for flavor-12 (later confirmed by several other groups), and also for flavor-8, the latter being a candidate for the technidilaton to be identified with the discovered Higgs particle as a composite.

Free Research Field

素粒子論

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Published: 2016-06-03   Modified: 2019-07-02  

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