Hajime Otsuka

139 papers and 1.3k indexed citations i.

About

Hajime Otsuka is a scholar working on Nuclear and High Energy Physics, Pulmonary and Respiratory Medicine and Astronomy and Astrophysics. According to data from OpenAlex, Hajime Otsuka has authored 139 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 69 papers in Nuclear and High Energy Physics, 42 papers in Pulmonary and Respiratory Medicine and 35 papers in Astronomy and Astrophysics. Recurrent topics in Hajime Otsuka’s work include Black Holes and Theoretical Physics (51 papers), Particle physics theoretical and experimental studies (40 papers) and Cosmology and Gravitation Theories (34 papers). Hajime Otsuka is often cited by papers focused on Black Holes and Theoretical Physics (51 papers), Particle physics theoretical and experimental studies (40 papers) and Cosmology and Gravitation Theories (34 papers). Hajime Otsuka collaborates with scholars based in Japan, South Korea and United States. Hajime Otsuka's co-authors include Tatsuo Kobayashi, Yoshinobu Hata, Akira Iyoda, Hiroyuki Abé, Takashi Makino, Kazutoshi Shibuya, Yoshinori Honma, Naobumi Tochigi, Kazutoshi Isobe and Morimitsu Tanimoto and has published in prestigious journals such as Nuclear Physics B, Physics Letters B and Journal of High Energy Physics.

In The Last Decade

Co-authorship network of co-authors of Hajime Otsuka i

Fields of papers citing papers by Hajime Otsuka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hajime Otsuka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hajime Otsuka. The network helps show where Hajime Otsuka may publish in the future.

Countries citing papers authored by Hajime Otsuka

Since Specialization
Citations

This map shows the geographic impact of Hajime Otsuka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hajime Otsuka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hajime Otsuka more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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2025