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Welcome to

Masato Nagatsuka's webpage




Contact


Hadron Group, Nuclear Theory Lab., Dept. of Phys., Tohoku University

e-mail : masaton[at]nucl.phys.tohoku.ac.jp


Reseach interests


1. Lattice QCD simulations
2. Exotic hadrons (In paticular, doubly charmed tetraquarks)
3. Yang-Mills gradient flow
4. Nucleons (Estimation of disconnected diagrams)

Publications


1. M. Nagatsuka, K. Sakai, S. Sasaki
"Equivalence between the Wilson flow and stout-link smearing"
Phys. Rev. D108 (2023) 094506 (arXiv:2303.09938)

Proceedings


1. M. Nagatsuka, K. Sakai, S. Sasaki
"Prospects for the stout smearing as an equivalent approach to the Wilson flow"
PoS LATTICE2023, 360 (arXiv:2401.06140)
2. Masato Nagatsuka, Shoichi Sasaki
"Extraction of the S and P wave DD* scattering phase shifts using twisted boundary conditions"
PoS LATTICE2024, 090 (arXiv:2410.09815)

Presentations


2025

1. 長塚正人, 青木保道, 石川健一, 藏増嘉伸, 佐々木勝一, 辻竜太朗, 新谷栄吾, 山崎剛
"Split-Even法を用いた非連結ダイアグラム差の精度向上"
日本物理学会春季大会(2025), オンライン, March 18-21 (talk on 20th)
2. Masato Nagatsuka, Shoichi Sasaki
Search for bound state formation in DD* and BB* channels using lattice QCD with a relativistic heavy quark action
HADRON 2025, Osaka University, March 27-31 (talk on 29th)

2024年
1. 長塚正人, 佐々木勝一
"格子QCDを用いた低エネルギーでのDD*散乱位相の研究"
日本物理学会春季大会(2024), オンライン, March 18-21 (talk on 19th)
2. Masato Nagatsuka, Shoichi Sasaki
"Extraction of the S and P wave DD* scattering phase shifts using twisted boundary conditions"
LATTICE 2024, Liverpool University (Liverpool, UK), July 28-August 3 (talk on August 3rd)
3. 長塚正人, 佐々木勝一
"格子QCDを用いた低エネルギーでのDD*散乱位相の研究II"
日本物理学会秋季大会(2024), 北海道大学, September 16-19 (talk on 16th)
4. Masato Nagatsuka
"Analysis of the DD* scattering phase shift under twisted boundary conditions"
GPPU school 2024, Tohoku University, September 24-27 (talk on 24th)
5. Masato Nagatsuka, Shoichi Sasaki
"Utilizing Twisted Boundary Conditions to Determine DD* Scattering Phase Shifts"
Hadrons and Hadron Interactions in QCD 2024 (HHIQCD2024), Kyoto University, October 14-November 9 (talk on October 17th)

2023年
1.M. Nagatsuka, K. Sakai, S. Sasaki
"On equivalence between Yang-Mills gradient flow and stout smearing"
Challenges and opportunities in Lattice QCD simulations and related fields, RIKEN R-CCS (Kobe), February 15-17 (Poster on 15th)
2. 長塚正人, 酒井啓太, 佐々木勝一
"ヤン-ミルズ勾配法とスタウトスメアリング法の等価性ついて"
日本物理学会2023年春季大会, オンライン, March 22-25 (talk on 25th)
3. M. Nagatsuka, K. Sakai, S. Sasaki
"On the equivalence between the Wilson flow and stout-link smearing"
RIKEN-Tohoku Joint Workshop, RIKEN (Wako), May 11-12 (talk on 11th)
4. M. Nagatsuka, K. Sakai, S. Sasaki
"Prospects for the stout smearing as an equivalent approach to the Wilson flow"
LATTICE 2023, Fermilab (Chicago, USA), July 31-August 4 (August 4th)
5.M. Nagatsuka
"Review on the lattice QCD simulations for the investigation of tetraquarks"
GPPU school 2023, Tohoku University, September 26-29 (flash talk and poster on 28th)
6. M. Nagatsuka, S. Sasaki
"Lattice QCD study of DD* scattering phase shift using Lüscher’s finite size formula under twisted boundary condition"
Nagoya Workshop on Exotic Hadrons 2023, Nagoya University, Nobember 14-17 (talk on 15th)


Seminar


1. ウィルソンフロー法とスタウトスメアリング法の等価性ついて
京都大学原子核理論研究室セミナー, October 18th, 2024
2. Search for bound state formation in DD* and BB* channels using lattice QCD with a relativistic heavy quark action
Connecticut University PAN seminar, March 3rd, 2025

Awards & Fellowships


1. 令和2年度東北大学青葉理学振興会賞 2021年3月
2. 令和3年度東北大学学士総長賞 2022年3月
3. 宇宙創成物理学国際共同大学院(GPPU)採択 2023年4月-
4. GP-PU QE1 Special Award 2024年2月
5. 日本学術振興会DC1特別研究員2024年4月-

Tips


1. xmgraceのtips
2. Useful External links (研究のやり方、研究資料、プログラム etc.)


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