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2022 Fiscal Year Annual Research Report

Probing physics beyond the standard model by precise predictions for flavor physics

Research Project

Project/Area Number 19K14706
Research InstitutionNagoya University

Principal Investigator

北原 鉄平  名古屋大学, 高等研究院(素粒子), 特任助教 (40759502)

Project Period (FY) 2019-04-01 – 2023-03-31
Keywordsフレーバー物理 / CPの破れ / B中間子 / LHC実験
Outline of Annual Research Achievements

2022年度は本科研費の最終年度であり、これまでの研究結果の論文執筆に多くの労力を割いた。結果として、11報のフルペーパーを執筆することができた。得られた研究結果の積極的な講演も行なった。2022年度は、国際会議講演8回、国内会議講演2回、対外セミナー9回であった。さらに、高エネルギーニュースという学術書に、共著で最新のWボソン質量アノマリーに関するまとめの記事を寄稿した。注目すべき結果として、物理定数の調整時に新物理の影響を調査することができた。微細構造定数などの物理定数は、CODATAにより水素等のスペクトル分析から得られる精密測定の結果に基づいて決められている。しかし、その調整は標準模型を前提としている。我々は一般的な新物理を湯川ポテンシャルの形に仮定し、それを考慮に入れ、CODATAの結果を再現する一方で、物理定数の調整に矛盾が生じない手法を開発することができた。同時に、molecular hydrogen ion等のスペクトル分析も取り入れることで、CODATAよりも幅広い実験結果を扱うことができた。さらに、CODATAによる標準模型物理定数の調整よりも、優れたfitを示す特定の新物理の存在も明らかになった。この論文はPhysical Review Lettersに掲載され、プレスリリースも公表した。また、K to mu muに関して、そのstrong phaseの見積もりに関し、Grossmanグループと共著で結果を出すことも成功した。Cabibbo角アノマリーに関して、そのベクター型クォークの現象論の論文をまとめることも成功した。

  • Research Products

    (34 results)

All 2023 2022 Other

All Int'l Joint Research (6 results) Journal Article (15 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 11 results,  Open Access: 14 results) Presentation (10 results) (of which Int'l Joint Research: 8 results,  Invited: 8 results) Remarks (3 results)

  • [Int'l Joint Research] Technion(イスラエル)

    • Country Name
      ISRAEL
    • Counterpart Institution
      Technion
  • [Int'l Joint Research] Karlsruhe(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      Karlsruhe
  • [Int'l Joint Research] Pisa(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Pisa
  • [Int'l Joint Research] CERN/Zurich(スイス)

    • Country Name
      SWITZERLAND
    • Counterpart Institution
      CERN/Zurich
  • [Int'l Joint Research] Annecy/LKB(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      Annecy/LKB
  • [Int'l Joint Research]

    • # of Other Countries
      2
  • [Journal Article] New physics searches at kaon and hyperon factories2023

    • Author(s)
      Goudzovski Evgueni、Redigolo Diego、Tobioka Kohsaku、Zupan Jure、Alonso-Alvarez Gonzalo、Alves S.M. Daniele、Bansal Saurabh、Bauer Martin、Brod Joachim、Chobanova Veronika、D'Ambrosio Giancarlo、Datta Alakabha、Dery Avital、Dettori Francesco、Dobrescu A. Bogdan、Dobrich Babette、Egana-Ugrinovic Daniel、et al
    • Journal Title

      Reports on Progress in Physics

      Volume: 86 Pages: 016201~016201

    • DOI

      10.1088/1361-6633/ac9cee

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Self-Consistent Extraction of Spectroscopic Bounds on Light New Physics2023

    • Author(s)
      Delaunay Cedric、Karr Jean-Philippe、Kitahara Teppei、Koelemeij Jeroen C.J.、Soreq Yotam、Zupan Jure
    • Journal Title

      Physical Review Letters

      Volume: 130 Pages: 121801

    • DOI

      10.1103/PhysRevLett.130.121801

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Chasing the two-Higgs doublet model in the di-Higgs boson production2023

    • Author(s)
      Iguro Syuhei、Kitahara Teppei、Omura Yuji、Zhang Hantian
    • Journal Title

      Physical Review D

      Volume: 107 Pages: 075017

    • DOI

      10.1103/PhysRevD.107.075017

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A precision relation between Γ(K → μ+μ-)(t) and B(KL →μ+μ-)/B(KL → γγ)2023

    • Author(s)
      Dery Avital、Ghosh Mitrajyoti、Grossman Yuval、Kitahara Teppei、Schacht Stefan
    • Journal Title

      Journal of High Energy Physics

      Volume: 2023 Pages: 014

    • DOI

      10.1007/JHEP03(2023)014

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of Lambdab to Lambdac tau nu measurement on new physics in b to c l nu transitions2023

    • Author(s)
      Fedele Marco、Blanke Monika、Crivellin Andreas、Iguro Syuhei、Kitahara Teppei、Nierste Ulrich、Watanabe Ryoutaro
    • Journal Title

      Physical Review D

      Volume: 107 Pages: 055005

    • DOI

      10.1103/PhysRevD.107.055005

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Global fit of modified quark couplings to EW gauge bosons and vector-like quarks in light of the Cabibbo angle anomaly2023

    • Author(s)
      Crivellin Andreas、Kirk Matthew、Kitahara Teppei、Mescia Federico
    • Journal Title

      Journal of High Energy Physics

      Volume: 2023 Pages: 234

    • DOI

      10.1007/JHEP03(2023)234

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sterile neutrinos in light of the Cabibbo-angle anomaly2023

    • Author(s)
      Kitahara Teppei、Tobioka Kohsaku
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2446 Pages: 012009~012009

    • DOI

      10.1088/1742-6596/2446/1/012009

    • Peer Reviewed / Open Access
  • [Journal Article] Novel loop-diagrammatic approach to QCD θ parameter and application to the left-right model2023

    • Author(s)
      Hisano Junji、Kitahara Teppei、Osamura Naohiro、Yamada Atsuyuki
    • Journal Title

      Journal of High Energy Physics

      Volume: 2023 Pages: 150

    • DOI

      10.1007/JHEP03(2023)150

    • Peer Reviewed / Open Access
  • [Journal Article] Asymmetric Di-Higgs Signals of the N2HDM-U(1)2023

    • Author(s)
      Sumit Banik、Andreas Crivellin、Syuhei Iguro、Teppei Kitahara
    • Journal Title

      arXiv

      Volume: hep-ph Pages: 2303.11351

  • [Journal Article] Large t to c Z as a sign of vectorlike quarks in light of the W mass2022

    • Author(s)
      Crivellin Andreas、Kirk Matthew、Kitahara Teppei、Mescia Federico
    • Journal Title

      Physical Review D

      Volume: 106 Pages: L031704

    • DOI

      10.1103/PhysRevD.106.L031704

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Scrutinizing the 95-100 GeV di-tau excess in the top associated process2022

    • Author(s)
      Iguro Syuhei、Kitahara Teppei、Omura Yuji
    • Journal Title

      The European Physical Journal C

      Volume: 82 Pages: 1053

    • DOI

      10.1140/epjc/s10052-022-11028-y

    • Peer Reviewed / Open Access
  • [Journal Article] Monopole-fermion scattering and varying Fock space2022

    • Author(s)
      Hamada Yuta、Kitahara Teppei、Sato Yoshiki
    • Journal Title

      Journal of High Energy Physics

      Volume: 2022 Pages: 116

    • DOI

      10.1007/JHEP11(2022)116

    • Peer Reviewed / Open Access
  • [Journal Article] Theory Techniques for Precision Physics -- Snowmass 2021 TF06 Topical Group Report2022

    • Author(s)
      Boughezal Radja、Ligeti Zoltan、Altmannshofer Wolfgang、 Das Bakshi Supratim、Caola Fabrizio、Chala Mikael、Diaz-Carmona Alvaro、Chen Wen、Darvishi Neda、Henning Brian、Jaskiewicz Sebastian、Kitahara Teppei、Li Hao-Lin、Liu Xiaohui、Martin Adam、Masouminia M.R. 、Melia Tom、Mereghetti Emanuele、et al
    • Journal Title

      arXiv

      Volume: hep-ph Pages: 2209.10639

    • Open Access / Int'l Joint Research
  • [Journal Article] Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 20212022

    • Author(s)
      Bose Tulika、Boveia Antonio、Doglioni Caterina、Griso Pagan Simone、 Hirschauer James、 Lipeles Elliot、Liu Zhen、Shah R. Nausheen、Wang Lian-Tao、Agashe Kaustubh、Alimena Juliette、Baum Sebastian、Berkat Mohamed、Black Kevin、Gardner Gwen、Gherghetta Tony、Greaves Josh、Haehn Maxx、Harris C. Phil、Harris Robert、et al
    • Journal Title

      arXiv

      Volume: hep-ph Pages: 2209.13128

    • Open Access / Int'l Joint Research
  • [Journal Article] Global fit to b → c tau nu anomalies 2022 mid-autumn2022

    • Author(s)
      Syuhei Iguro、Teppei Kitahara、Ryoutaro Watanabe
    • Journal Title

      arXiv

      Volume: hep-ph Pages: 2210.10751

    • Open Access
  • [Presentation] Novel loop-diagrammatic evaluation of the radiative theta parameter2023

    • Author(s)
      Teppei Kitahara
    • Organizer
      The 36th New Higgs Working Group (NHWG36)
    • Int'l Joint Research / Invited
  • [Presentation] Hunting for new physics in flavor physics2023

    • Author(s)
      Teppei Kitahara
    • Organizer
      The 5th KMI International Symposium (KMI2023)
    • Int'l Joint Research / Invited
  • [Presentation] B anomaly hunting at the LHC: tau b + missing search for leptoquarks2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      Physics in LHC and Beyond
    • Int'l Joint Research
  • [Presentation] Electromagnetic corrections to B meson semileptonic decays2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      26th meeting on physics at B factories
    • Int'l Joint Research / Invited
  • [Presentation] B anomaly hunting at the LHC: tau b + missing search for leptoquarks2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      TDLI-PKU BSM workshop 2022: Electroweak lights the way
    • Int'l Joint Research / Invited
  • [Presentation] A new physics interpretation of the W-boson mass anomaly with B anomaly2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      IBS and KMI Joint Workshop 2022
    • Int'l Joint Research / Invited
  • [Presentation] 次世代コライダー実験で拓く物理2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      次世代エネルギーフロンティア実験の検討会
    • Invited
  • [Presentation] 次世代コライダー実験で拓く物理2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      日本物理学会2022年秋季大会シンポジウム
    • Invited
  • [Presentation] Sterile neutrinos in light of the Cabibbo-angle anomaly2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      International Conference on Kaon Physics 2022 (KAON2022)
    • Int'l Joint Research
  • [Presentation] Anomalies in Flavor Physics2022

    • Author(s)
      Teppei Kitahara
    • Organizer
      The 4th KMI school
    • Int'l Joint Research / Invited
  • [Remarks] 【研究成果】物理定数の背後に未知の力がひそんでいる可能性を指摘

    • URL

      https://www.kmi.nagoya-u.ac.jp/blog/2023/04/11/4953/

  • [Remarks] 素粒子宇宙円卓会議#7 | 素粒子の個性を明らかにせよ!ようこそ、フレーバー物理学の世界へ

    • URL

      https://note.com/nagoya_ura/n/n8e897823fd9a

  • [Remarks] 名古屋大学の北原

    • URL

      https://www.youtube.com/watch?v=B0OaCKWLvE4

URL: 

Published: 2023-12-25  

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