Welcome to the Homepage of Nanjo Group, Department of Physics, Osaka University

We are a High Energy Physics research group, which uses accelerators to research on particle symmetries.
Check out the experiments we work on here.

Check out how to access our lab here.

High Energy Physics Experiments we work on

KOTO Detector
The purpose of J-PARC KOTO experiment is to search for new physics beyond the standard model, that break CP symmetry. CP is a symmetry between matter and anti-matter. We are using CP-violating rare Kaon decay as a probe.

The KOTO Experiment located in JPARC, Japan

ATLAS Detector
The Osaka ATLAS group is working on the ATLAS experiment using the Large Hadron Collider (LHC) at the European Nuclear Research Organization, CERN (Geneva). We are studying the properties of the Higgs particle and searching for new particles predicted by various theories beyond the standard model. We are also developing silicon detectors for the future upgrade of the ATLAS detector.

The ATLAS Experiment located in CERN, Switzerland

Nanjo Group News
2024.12.23
The Aoki-lab & Nanjolab joint year end presentation was held.
2024.12.20
M. Gonzalez's doctoral dissertation defense was held.
2024.12.18
L.Wickremasinghe and T. Masubuchi participated in Workshop for Tera-Scale Physics and Beyond, and L.Wickremasinghe presented the latest result of the Higgs to charm quark decay analysis.
2024.11.09
The 2024 Kansai HEP Imonikai was held.
2024.11.05
The Aoki-lab & Nanjo-lab BBQ was held.
2024.10.31~11.01
H.Nanjo, K.Ono, Y.Kawata, M.Katayama, D.Ogawa, and M.Homma presented at the Korea-Japan KOTO II workshop held at Nambu Yoichiro Hall, Osaka University.
2024.10.21
K.Ono was awarded the 2024 Student Presentation Award of the Physical Society of Japan.
2024.10.14~18
H.Nanjo, K.Coterra, K.Ono, Y.Kawata, D.Ogawa and M.Homma presented at the 4th J-PARC Symposium (2024).
2024.10.12
The 39th Regular Meeting of New Higgs Working Group at Osaka University. T. Masubuchi gave a talk about Recent Higgs results at the LHC
2024.10.03
ILC seminar was held in Osaka University.
2024.09.27~29
2024 Nanjolab Trip was held.
2024.09.24
SuperKEKB/Belle II seminar was held in Osaka University.
2024.09.15~19
T.Izuo, D.Ogawa, K.Ono, M.Katayama, Y.Kawata, H.Nanjo, M.Homma, M.Gonzalez, L.Wickremasinghe presented at the 2024 Annual Meeting of the Physical Society of Japan
2024.08.27
Beiyao, a student participating in the International Summer Program (ISP), has completed the program. He researched DiHiggs properties of the SM and BSM for LHC and enjoyed research life with Nanjo-lab members at Osaka Univ.
2024.08.20~28
The Nanjo Lab participated in the 18th KEK Summer Challenge and was in charge of the exercise assignment.
2024.08.16
K.Kiyokawa joined Nanjo laboratory.
2024.07.27~29
Kaons@J-PARC 2024 workshop was held, and H.Nanjo presented the status of KOTOⅡ.
2024.07.23
The ATLAS experiment released the latest result of the Higgs to bottom and charm quark decay analysis. Lakmin W., T.Masubuchi and M.Hirose are collaborators in this analysis from Osaka University.
2024.07.18~24
H.Nanjo, Mario G. and K.Ono presented their results at ICHEP 2024 (International Conference on High Energy Physics) in Prague.
2024.07.17
We have welcomed Beiyao, a student participating in the International Summer Program (ISP), to the Nanjo Lab.
2024.05.03
Nanjo lab participated in the 2024 Ichou Festival.
2024.04.12
Kawabata, Tamii, Aoki and Nanjo group BBQ was held.
2024.04.08
2024 members list was updated.
2024.04.01
Tatsuya Masubuchi joins Nanjo group, Osaka University, as the new associate professor.
2024.03.26
H.Nanjo held a colloquium at DESY (Hamburg) on the KOTO and KOTO-II detectors.
2024.03.24~31
R.Shiraishi presented his work at the 58th Rencontres de Moriond 2024 (Electroweak Interactions & Unified Theories) in La Thuille, Italy.
2024.03.18~21
R.Shiraishi, Mario G., K.Ono, R.Kugou, Y.Kawata, R.Arakida, M.Katayama and T.Izuo presented at the 2024 Spring Meeting of the Physical Society of Japan.
2024.03.07~08
H.Nanjo and M.Katayama presented at the KEK Platform-A Workshop held at Osaka University.
2024.02.19-21
H.Nanjo presented at the Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024).
2024.02.18-21
K.Ono participated in the 30th ICEPP Symposium.
2023.02.16
D.Ogawa, I.Kitano and A.Sumimura presented their undergraduate thesis research at undergraduate research presentation session.
2024.02.13
R.Kugou, T.Shibata, Y.Kawata and R.Arakida presented their masters thesis at the master thesis defense session.
2023.12.14
The Aoki-lab & Nanjolab joint year end presentation was held.
2023.11.01
K.Ono was awarded the 2023 Student Presentation Award of the Physical Society of Japan.
2023.10.23
N.Shimizu was awarded the 18th Young Scientist Award of the Physical Society of Japan for his excellent research work done during his post-doc in Takulab (former Nanjo group).
2023.10.19
The Aoki-lab & Nanjolab BBQ was held.
2023.10.16
The Spring-8 seminar was held in Osaka University. One of the presenters was E.Iwai, an OB of Takulab.
2023.10.02~06
Lakmin W. presented at the ATLAS Higgs Workshop 2023, held at the University of Tokyo.
2023.09.25~27
The 2023 Nanjolab Trip was held.
2023.09.16~19
K.Coterra, R.Shiraishi, Lakmin W., Mario G., K.Ono, R.Kugou, Y.Kawata, R.Arakida presented at the 2023 Annual Meeting of the Physical Society of Japan
2023.09.11~14
H.Nanjo presented at the Kaons@CERN 2023.
2023.07.09
The 2023 Nanjolab BBQ was held.
2023.06.23
M.Hirose presented at the Workshop for Tera-Scale Physics and Beyond held at Kyushu University.
2023.05.22~23
R.Shiraishi presented at the US-Japan Hawaii Symposium of the US-Japan Science and Technology Cooperation Program held in Hawaii.
2023.04.30
Nanjo lab participated in the 2023 Ichou Festival.
2023.04.10
2023 members list was updated.
2023.04.09
The 2023 Kansai HEP hanami was organized by Aoki and Nanjo groups.
2023.04.03
Nanjo group is estabilished in Osaka University. The Yamanaka group homepage can be accessed from here.
2023.03.31
Masters and Bachelors theses were updated! They can be viewed at the results page.
2023.03.23
K.Ono was awarded the 13th HUA (Hadron Users Association) master thesis award.
2023.03.22~25
M.Hirose, R.Shiraishi, Lakmin W., Mario G., K.Ono, R.Kugou, Y.Kawata, T.Shibata presented at the 2023 Spring Meeting of the Physical Society of Japan.
2023.03.06
Prof. Taku Yamanaka's final lecture was held at the Yoichiro Nambu hall, Osaka University.
2023.02.17
A.Ando and M.Tsukimoto presented their undergraduate thesis research at undergraduate research presentation session.
2023.02.8~9
Y.Fujita, K.Ono, S.Arakuta and A.Kitagawa presented their masters thesis at the master thesis defense session.
2022.12.22
Aoki group and Yamanaka group year end presentation was held.
2022.11.29
Lakmin W. presented at the 12th LHCC Students Poster Session at CERN.
2022.10.25
K.Ono was awarded the Student Presentation Award of the Physical Society of Japan.
2022.10.10
2022 members list was updated.
2022.09.13~16
KAON 2022 (International Conference on Kaon Physics) was held in Osaka University.
2022.09.6~8
K.Coterra, R.Shiraishi, K.Ono, Y.Fujita, and A.Kitagawa presented at the 2022 Autumn Meeting of the Physical Society of Japan
2022.09.5~9
M. Hirose presented at IPA2022 (Interplay between Particle and Astroparticle Physics)
2022.08.15~19
Lakmin W. presented at BOOST 2022 (14th International Workshop on Boosted Object Phenomenology, Reconstruction, Measurements and Searches in HEP)
2022.04.12
2022 members list was updated.
2022.04.11
The Yamanaka Group HP was updated! The old page can be found here.
2022.04.11
Masters theses were updated! They can be viewed at the results page.