Hajime Otsuka

1.9k total citations · 1 hit paper
138 papers, 1.3k citations indexed

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 138 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Nuclear and High Energy Physics, 43 papers in Pulmonary and Respiratory Medicine and 33 papers in Astronomy and Astrophysics. Recurrent topics in Hajime Otsuka's work include Black Holes and Theoretical Physics (41 papers), Particle physics theoretical and experimental studies (36 papers) and Cosmology and Gravitation Theories (32 papers). Hajime Otsuka is often cited by papers focused on Black Holes and Theoretical Physics (41 papers), Particle physics theoretical and experimental studies (36 papers) and Cosmology and Gravitation Theories (32 papers). Hajime Otsuka collaborates with scholars based in Japan, South Korea and China. Hajime Otsuka's co-authors include Tatsuo Kobayashi, Akira Iyoda, Yoshinobu Hata, Takashi Makino, Satoshi Koezuka, Kazutoshi Shibuya, Naobumi Tochigi, Morimitsu Tanimoto, Kazutoshi Isobe and Hiroyuki Abé and has published in prestigious journals such as SHILAP Revista de lepidopterología, Nuclear Physics B and Physics Letters B.

In The Last Decade

Hajime Otsuka

128 papers receiving 1.3k citations

Hit Papers

Higgs-modular inflation 2025 2026 2025 5 10 15 20

Peers

Hajime Otsuka
Comparison fields: 5 of 95
  • Nuclear and High Energy Physics 576
  • Pulmonary and Respiratory Medicine 377
  • Astronomy and Astrophysics 231
  • Oncology 190
  • Surgery 159
Replace P. Jovanović with:
P. Jovanović Serbia
Makiko Yoshida Japan
Michael B. McDermott Ireland
A. Ćeller Canada
Chengcheng Han China
Férid Haddad France
John J. Feldmeier United States
James L. Bedford United Kingdom
Franco Perrone Italy
W. Heidenreich Germany
P. Jovanović Serbia View profile →
Citations per field, relative to Hajime Otsuka
Hajime Otsuka · 1×
Citations per year, relative to Hajime Otsuka
Hajime Otsuka · 1×

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).

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.

Co-authorship network of co-authors of Hajime Otsuka

This figure shows the co-authorship network connecting the top 25 collaborators of Hajime Otsuka. A scholar is included among the top collaborators of Hajime Otsuka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hajime Otsuka. Hajime Otsuka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
# Work Indexed citations
1 0
2 0
3 3
4 1
5 1
6 2
7 11
8 6
9 6
10 4
11 18
12 5
13 3
14 1
15 2
16 25
17 0
18 1
19 1
20 1

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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