Faculty of Science and Technology
Profile Information
- Affiliation
- Assistant Professor, Faculty of Science and Technology Department of Science and Technology , Seikei University
- Degree
- Ph.D.(Mar, 2014, The University of Tokyo)
- Contact information
- kazuhr.watanabe
gmail.com - Researcher number
- 20973944
- ORCID ID
https://orcid.org/0000-0002-7258-6966- J-GLOBAL ID
- 202101020676283298
- Researcher ID
- AAT-1993-2021
- researchmap Member ID
- R000024369
Research Interests
5Research Areas
1Research History
6-
Jan, 2021 - Aug, 2022
-
May, 2018 - Sep, 2020
-
Oct, 2016 - Mar, 2018
-
Oct, 2014 - Sep, 2016
Education
1Awards
1Papers
23-
Journal of High Energy Physics, 2024(5) 207, May 16, 2024 Peer-reviewedAbstract Results are presented for the medium-induced, soft coherent radiation spectrum for all 2 → 2 partonic channels in QCD, at leading-order in αs but beyond leading logarithmic accuracy. The general formula is valid in the full kinematic range of the underlying process, and reduces to previous results in special cases. The soft gluon radiation spectrum is expressed in terms of the color density matrix specific to each channel, quantifying the entanglement between the color components of the 2 → 2 production amplitude. Beyond the leading logarithm, the spectrum depends explicitly on the off-diagonal elements of this matrix, owing to the soft gluon’s ability to probe the internal color structure of the parton pair.
-
EPJ Web of Conferences, 274 04005-04005, Dec, 2022 Peer-reviewedInvitedCorresponding authorWe report the current understanding of heavy quarkonium production at high transverse momentum (pT) in hadronic collisions in terms of QCD factorization. In this presentation, we highlight the role of subleading power corrections to heavy quarkonium production, which are essential to describe the pT spectrum of quarkonium at a relatively lower pT. We also introduce prescription to match QCD factorization to fixed-order NRQCD factorization calculations for quarkonium production at low pT.
-
SciPost Physics Proceedings, (8), Jul 14, 2022 Peer-reviewedInvitedCorresponding authorHeavy quarkonium production at high transverse momentum(p_T)in hadronic collisions is explored in the QCD factorization approach. Wefind that the leading power in the 1/p_Texpansion is responsible for high p_Tregime, while the next-to-leading power contribution is necessary forthe low p_Tregion. We present the first numerical analysis of the scale evolutionof coupled twist-2 and twist-4 fragmentation functions (FFs) for heavyquarkonium production and demonstrate that the QCD factorizationapproach is capable of describing the p_Tspectrum of hadronic J/\psiproduction at the LHC.
-
Progress in Particle and Nuclear Physics, 122 103906-103906, Jan, 2022 Peer-reviewedInvited
-
Proceedings of 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions — PoS(HardProbes2020), Sep 1, 2021 Peer-reviewedCorresponding author
Misc.
3-
Meeting abstracts of the Physical Society of Japan, 68(2) 81-81, Aug 26, 2013
-
Meeting abstracts of the Physical Society of Japan, 68(1) 112-112, Mar 26, 2013
-
Meeting abstracts of the Physical Society of Japan, 67(2) 43-43, Aug 24, 2012
Presentations
72-
The 4th EIC-Asia Workshop, Fudan University, China, Jul 3, 2024 Invited
-
New aspects of nuclear and particle physics developed at EIC, May 28, 2024 Invited
-
The Physical Society of Japan, 2024 Spring Meeting, Mar 21, 2024
-
The Physical Society of Japan, 2024 Spring Meeting, Mar 19, 2024
Teaching Experience
8-
2024 - PresentFundamental Programming (Python) (Seikei University)
-
2023 - PresentC++ Programming Laboratory II (Seikei University)
-
2023 - PresentC++ Programming II (Seikei University)
-
2022 - PresentReading Seminar I (Seikei University)
-
2022 - PresentProject Laboratory on Information Sciences (Seikei University)
Professional Memberships
2
お知らせ
【連絡事項】
成蹊大学専任教員各位
Ufinityにログイン後、「編集」ボタンを押した際に「権限が不正」というエラーメッセージが生じた際は、総合企画課までご連絡ください。
総合企画課：kikaku@jim.seikei.ac.jp
※各教員の担当科目については、以下のリンク先にある「教員名」に該当教員の氏名を入力の上、検索してください。