2026 John G. Learned: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	107	1275	1207	668	621	489	65820

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

107

1275

1207

668

621

489

65820

Overview

John G. Learned is affiliated with the University of Hawaii at Manoa in the United States. Their primary field of study is Physics and Astronomy, with a particular focus on Nuclear and High Energy Physics. Additional subfields include Radiation, Astronomy and Astrophysics, Aerospace Engineering, and Atomic and Molecular Physics, and Optics.

Learned's research spans several main topics, including:

Neutrino Physics Research
Astrophysics and Cosmic Phenomena
Particle physics theoretical and experimental studies
Dark Matter and Cosmic Phenomena
Radiation Detection and Scintillator Technologies
Nuclear Physics and Applications
Gamma-ray bursts and supernovae

The scientist has published extensively, with many papers appearing in venues such as arXiv (Cornell University), Physical review. D/Physical review. D., The Astrophysical Journal, Physical Review Letters, and Proceedings of 37th International Cosmic Ray Conference - PoS(ICRC2021).

Recent notable publications include:

"Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen," 2023, Physical Review Letters
"First gadolinium loading to Super-Kamiokande," 2022, Digital Access to Libraries
"Limits on Astrophysical Antineutrinos with the KamLAND Experiment," 2022, The Astrophysical Journal
"Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande," 2023, Physical Review Letters
"Solar neutrino measurements using the full data period of Super-Kamiokande-IV," 2024, Physical review. D/Physical review. D.

Throughout their career, the scientist has collaborated frequently with peers such as:

Y. Suzuki
Y. Takemoto
Y. Hayato
M. Nakahata
E. Kearns

These collaborations reflect active involvement in research concerning neutrino experiments and cosmic phenomena. The variety of publication venues and coauthors indicates engagement in both theoretical and experimental aspects of particle physics and astrophysics.

Best Publications

Evidence for oscillation of atmospheric neutrinos

Y. Fukuda;T. Hayakawa;E. Ichihara;K. Inoue

8570
Citations
First results from KamLAND: evidence for reactor antineutrino disappearance.

K. Eguchi;S. Enomoto;K. Furuno;J. Goldman

4240
Citations
Observation of a neutrino burst in coincidence with supernova 1987A in the Large Magellanic Cloud.

R. M. Bionta;G. Blewitt;C. B. Bratton;D. Casper

1967
Citations
Measurement of neutrino oscillation with KamLAND: evidence of spectral distortion.

T. Araki;K. Eguchi;S. Enomoto;K. Furuno

1857
Citations
Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data

Y. Fukuda;M. Ishitsuka;Y. Itow;T. Kajita

1795
Citations
Indications of neutrino oscillation in a 250 km long-baseline experiment.

M. H. Ahn;S. Aoki;H. Bhang;S. Boyd

1570
Citations
Measurement of atmospheric neutrino oscillation parameters by Super-Kamiokande I

Y. Ashie;J. Hosaka;K. Ishihara;Y. Itow

1518
Citations
Measurement of neutrino oscillation by the K2K experiment

M. H. Ahn;E. Aliu;S. Andringa;S. Aoki

1480
Citations
The Super-Kamiokande detector

S. Fukuda;Y. Fukuda;T. Hayakawa;E. Ichihara

1399
Citations
Constraints on neutrino oscillations using 1258 days of Super-Kamiokande solar neutrino data.

S. Fukuda;Y. Fukuda;M. Ishitsuka;Y. Itow

1333
Citations
Determination of solar neutrino oscillation parameters using 1496 days of Super-Kamiokande-I data

S. Fukuda;Y. Fukuda;M. Ishitsuka;Y. Itow

1317
Citations
Measurement of the Flux and Zenith-Angle Distribution of Upward Throughgoing Muons by Super-Kamiokande

Y. Fukuda;T. Hayakawa;E. Ichihara;K. Inoue

1313
Citations
Measurements of the solar neutrino flux from Super-Kamiokande's first 300 days

Y. Fukuda;T. Hayakawa;E. Ichihara;K. Inoue

1293
Citations
Electron- and muon-neutrino content of the atmospheric flux.

R Becker-Szendy;CB Bratton;D Casper;ST Dye

1198
Citations
Tau neutrinos favored over sterile neutrinos in atmospheric muon neutrino oscillations.

S. Fukuda;Y. Fukuda;M. Ishitsuka;Y. Itow

1163
Citations
Evidence for an Oscillatory Signature in Atmospheric Neutrino Oscillations

Y. Ashie;J. Hosaka;K. Ishihara;Y. Itow

1084
Citations
Measurement of a small atmospheric νμ/νe ratio

Y. Fukuda;T. Hayakawa;E. Ichihara;K. Inoue

1080
Citations
Study of the atmospheric neutrino flux in the multi-GeV energy range

Y. Fukuda;T. Hayakawa;E. Ichihara;K. Inoue

1045
Citations
Measurement of atmospheric neutrino composition with the IMB-3 detector.

Casper D;Becker-Szendy R;Bratton Cb;Cady Dr

898
Citations
Solar neutrino measurements in Super-Kamiokande-II

J. P. Cravens;K. Abe;T. Iida;K. Ishihara

732
Citations