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Fully numerical method for divergent multi-loop Feynman integrals appearing in higher order radiative corrections

Research Project

Project/Area Number 17K05428
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

Fukuko YUASA  大学共同利用機関法人高エネルギー加速器研究機構, 計算科学センター, 名誉教授 (00203943)

Co-Investigator(Kenkyū-buntansha) 加藤 潔  工学院大学, 教育推進機構(公私立大学の部局等), 教授 (50152707)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords高次輻射補正 / ファインマン積分 / マルチループ / 多次元数値積分 / 並列計算 / 次元正則化 / 数値積分法 / 外挿法 / ファイマン積分 / 紫外発散 / 多次元数値積分法 / 素粒子論
Outline of Final Research Achievements

We have been developing a fully numerical method for an evaluation of Feynman integrals which appear in calculation of higher order radiative corrections. In perturbation theory calculations are carried out based on Feynman diagrams. When the order becomes higher, there appear diagrams with loop topology and an evaluation of Feynman integrals is necessary and it becomes a crucial task. Generally speaking, they are difficult integrals due to ultra violet and infrared divergences and singular behaviors of integrands. Our method is a combination of numerical a multi-dimensional integration and an extrapolation method. It is fully numerical and it can handle Feynman integrals with various physics parameters such as masses of internal lines and external momenta. In this research period, our method shows a good performance for the computation of Feynman diagrams up to 5-loops with 14 internal lines.

Academic Significance and Societal Importance of the Research Achievements

完全に数値的な手法を用いることで、内線の質量/外線運動量/ループ数/内線数によらない統一的な計算法で高次輻射補正に現れるファインマン積分を求めることにより、高次補正まで含んだ理論予測値を得ることができる。将来の加速器実験では、素粒子理論での標準理論の検証が非常に精密に行われ、特に電弱相互作用の研究が重要となる。電弱相互作用では、様々な質量の素粒子が関与するために解析的な方法のみでは対応は困難であり、我々が開発する数値計算法が有用となる。我々の方法は、計算機の能力によるところがおおいが、今後ますます計算機が発展することが期待される今日においては、有望で持続可能な方法である。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (23 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 9 results,  Open Access: 7 results) Presentation (9 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] Western Michigan University(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Western Michigan University(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Western Michigan University(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Western Michigan University(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Large Scale Automatic Computations for Feynman Diagrams with up to Five Loops2020

    • Author(s)
      de Doncker E.、Yuasa F.、Olagbemi O.、Ishikawa T.
    • Journal Title

      Lecture Notes in Computer Science book series (LNCS)

      Volume: 12253 Pages: 145-162

    • DOI

      10.1007/978-3-030-58814-4_11

    • ISBN
      9783030588137, 9783030588144
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficient GPU Integration for Multi-loop Feynman Diagrams with Massless Internal Lines2019

    • Author(s)
      de Doncker Elise、Yuasa Fukuko、Almulihi Ahmed
    • Journal Title

      Computational and Experimental Simulations in Engineering. ICCES 2019. Mechanisms and Machine Science

      Volume: 75 Pages: 737-747

    • DOI

      10.1007/978-3-030-27053-7_62

    • ISBN
      9783030270520, 9783030270537
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct numerical computation and its application to the higher-order radiative corrections2018

    • Author(s)
      Kato K、de Doncker E、Ishikawa T、Yuasa F
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1085 Pages: 052002-052002

    • DOI

      10.1088/1742-6596/1085/5/052002

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A development of an accelerator board dedicated for multi-precision arithmetic operations and its application to Feynman loop integrals II2018

    • Author(s)
      Daisaka H、Nakasato N、Ishikawa T、Yuasa F、Nitadori K
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1085 Pages: 052004-052004

    • DOI

      10.1088/1742-6596/1085/5/052004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-speed evaluation of loop integrals using lattice rules2018

    • Author(s)
      de Doncker E、Almulihi A、Yuasa F
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1085 Pages: 052005-052005

    • DOI

      10.1088/1742-6596/1085/5/052005

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Transformed Lattice Rules for Feynman Loop Integrals on GPUs2018

    • Author(s)
      De Doncker E、Almulihi A、Yuasa F
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1136 Pages: 012002-012002

    • DOI

      10.1088/1742-6596/1136/1/012002

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] GooseコンパイラによるPEZY-SC2クラスタ睡蓮2での応用計算2018

    • Author(s)
      中里直人、台坂博、湯浅富久子、石川正
    • Journal Title

      情報処理学会研究報告

      Volume: 2018-HPC-167 No.8 Pages: 1-6

    • Related Report
      2018 Research-status Report
  • [Journal Article] Regularization with numerical extrapolation for finite and UV-divergent multi-loop integrals2018

    • Author(s)
      de Doncker E.、Yuasa F.、Kato K.、Ishikawa T.、Kapenga J.、Olagbemi O.
    • Journal Title

      Computer Physics Communications

      Volume: 224 Pages: 164-185

    • DOI

      10.1016/j.cpc.2017.11.001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Feynman loop numerical integral expansions for 3-loop vertex diagrams2017

    • Author(s)
      de Doncker E、Yuasa F
    • Journal Title

      Procedia Computer Science

      Volume: 108 Pages: 1773-1782

    • DOI

      10.1016/j.procs.2017.05.253

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Numerical integration and extrapolation for finite and UV-divergent 3-loop Feynman integrals2017

    • Author(s)
      de Doncker E、Yuasa F、Kato K、Ishikawa T
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 920 Pages: 012005-012005

    • DOI

      10.1088/1742-6596/920/1/012005

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] マルチスケール・マルチループのファインマン積分の数値計算(II)2020

    • Author(s)
      湯浅富久子
    • Organizer
      日本物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 素粒子物理学におけるFeynman 積分の数値計算2019

    • Author(s)
      湯浅富久子
    • Organizer
      日本応用数理学会
    • Related Report
      2019 Research-status Report
  • [Presentation] マルチスケール・マルチループのファインマン積分の数値計算2019

    • Author(s)
      湯浅富久子
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Efficient GPU Integration for Multi-loop Feynman Diagrams with Massless Lines2019

    • Author(s)
      Fukuko Yuasa
    • Organizer
      The International Conference on Computational & Experimental Engineering and Sciences (ICCES 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ファインマン積分の数値計算法:DCMによる電弱高次補正計算II2018

    • Author(s)
      湯浅富久子
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ファインマン積分の数値計算法:DCMによる電弱高次補正計算2018

    • Author(s)
      湯浅富久子
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Feynman loop numerical integral expansions for 3-loop vertex diagrams2017

    • Author(s)
      湯浅富久子
    • Organizer
      The International Conference on Computational Science, ICCS2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Direct numerical computation and its application to the higher-order radiative corrections2017

    • Author(s)
      加藤潔
    • Organizer
      18th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, ACAT2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 数値計算法とその高次輻射補正への応用2017

    • Author(s)
      加藤潔
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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