Extending the reach of long-lived new particles searches in the world's highest energy proton-proton collisions under unprecedented luminosity environment

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K23439
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0203:Particle-, nuclear-, astro-physics, and related fields
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Oide Hideyuki 東京工業大学, 理学院, 助教 (60846294)
• Project Period (FY): 2019-08-30 – 2021-03-31
• Keywords: 高輝度LHC / ピクセル検出器 / 長寿命粒子探索

Outline of Final Research Achievements

In this research program, studies for new particle searches beyond the "Standard Model" of particle physics using the ATLAS detector of the LHC achieving the world's highest energy proton-proton collider. Provided that the previous searches have not found new particles, new methods of finding new particle signatures making use of charged particle passage detection as a new approach of exploration. In parallel, testing equipments were developed for silicon pixel module mass-production of the new tracking system of the upgraded ATLAS detector adapted to the high-luminosity era of the LHC.

Free Research Field

素粒子実験

Academic Significance and Societal Importance of the Research Achievements

ヒッグス粒子を含めた標準模型が非常によく確立したことは，「標準模型では説明できないこと」の謎が一層際立ったことを意味します．宇宙観測から存在が信じられているダークマターの謎を明らかにしうる新粒子の発見がLHCで期待されていますが，これまでの探索は否定的な結果になりました．従来光を当てることができなかった領域に，大統計の取得，または新規の探索法を開拓していくことが必要です．本研究はそれに対して効果的なアプローチを仕掛けることを意図したものです．