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1996 Fiscal Year Final Research Report Summary

New Physics Search via Radiative Corrections

Research Project

Project/Area Number 06640401
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionThe University of Tokushima

Principal Investigator

HIOKI Zenro  Faculty of Integrated Arts and Sciences, The University of Tokushima, Professor, 総合科学部, 教授 (90173129)

Project Period (FY) 1994 – 1996
KeywordsRadiative Corrections / Electroweak Quantum Effects / New Physics / Heavy Quark Effective Theory / Nonleptonic Decays / Top Quark Pair Productions / CP violation
Research Abstract

It is well-known that various weak-interaction processes are successfully described by the standard electroweak theory, which is based on SU (2) * U (1) gauge group, and we have so far no reliable data which require any corrections or extention of this theory. From theoretical point of view, however, it is often pointed out that this theory will not be the "final theory". Radiative corrections are an important and effective window on new physics beyond this standard theory. This is because even very heavy particles which cannot be produced in actual experiments can affect physical observables as the quantum effects. On the other hand, we expect direct productions of new particles/phenomena at future accelerators like NLC/LHC.In this research, we aimed to investigate not only radiative corrections as pure loop effects but also nonstandard interactions which may be induced via radiative corrections, studying from relatively-low-energy B/D-hadron decays to high-energy top-quark pair productions at NLC.A remarkable result is an analysis of the structure of the electroweak radiative corrections. There, we found that the latest data of W/Z masses strongly indicate the existence of the nondecoupling effects via the heavy top loops. This will be a strong constraint on various models of new physics beyond the standard theory.

  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Z.Hioki: "O(∧^^-/m_e)Effects in Tests of Factorization Hypothesis for Heavy Hadron Nonleptonic Decays" Zeitschrift fur Physik. C62. 633-637 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "Finite Charm-mass Effects in fo_s Determination within the Heavy Quark Effective Theory" Progress of Theoretical Physics. 92. 997-1003 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "Non-trivial Test of Electroweak Quantum Effects" Physics Letters. B340. 181-184 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki and R.Nojima: "Is the Standard Electroweak Theory Happy with m_t〜174 GeV?" Modern Physics Letters. A10. 121-124 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Hattori,T.Hayashi,T.Hasuike,Z.Hioki and S.Wakaizumi: "B and D Meson Decays in the Heavy Quark Effective Theory" Prog.Theor.Phys.93. 927-938 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Consali and Z.Hioki: "Indications on the Higgs Boson Mass from the LEP data" Med.Phys.Lett.A10. 2245-2252 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "Studying Structure of Electroweak Corrections" Int.I.Med.Phys. A10. 3803-3816 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "Structure of Electroweak Radiotive Corrections" Acta Phys Polonica. B27・No.7. 1569-1579 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "EW Piecision Analysis and the Higas Mass" Acta Phys Polonica. B27・No.10. 2573-2582 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] B.Grzadkowski,Z.Hioki: "Energy Spectrum of Secondary Leptons in e^+e^-→t±" Nucl Phys. B484 No1. 17-32 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] B.Grzadkowski,Z.Hioki: "CP-violoting Lepton-Energy Correlation in ee→tt" Phys Letters. B391 No1. 172-176 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Z.Hioki: "O (*/m_c) Effects in Tests of Factorization Hypothesis for Heavy Hadron Nonleptonic Decays" Z.Phys.C62. 633-637 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "Finite Charm-mass Effects in f_<DS> Determination within the Heavy Quark Effective Theory" Prog.Theor.Phys.92. 997-1003 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "Non-trivial Test of Electroweak Quantum Effects" Phys.Lett.B340. 181-184 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "Is the Standard Electroweak Theory Happy with mt-174GeV?" Mod.Phys.Lett.A10. 121-124 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hattori: "Band D Meson Decays in the Heavy Quark Effective Theory" Prog.Theor.Phys.93. 927-938 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Consoli: "Indication on the Higgs Boson Mass from the LEP data" Mod.Phys.Lett.A10. 2245-2252 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "Studying Structure of Electroweak Corrections" Int.J.Mod.Phys.A10. 3803-3816 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "Structure of Electroweak Radiative Corrections" Acta Phys.Pol.B27. 1569-1579 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Z.Hioki: "EW Precision Analysis and the Higgs Mass" Acta Phys.Pol.B27. 2573-2582 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] B.Grz*dkowski: "Energy Spectrum of Secondary Leptons in e^+e^-*tt^^-" Nucl.Phys.B484. 17-32 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] B.Grz*dkowski: "CP-violating Lepton-Energy Correlation in ee^^-*tt^^-" Phys.Lett.B391. 172-176 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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