Citation Rankings
Highly Cited Researchers
Africa Natural Sciences Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Physique des particules
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
372,237
140,955
0.379
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Physics and Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345,518
181,980
0.527
* Total Citation Counts Rankings
Ranking Based On Selection: 3
High Energy Physics
Big data
Grid Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
327,001
146,849
0.449
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nuclear Physics
Medical Physics
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304,364
142,203
0.467
* Total Citation Counts Rankings
Ranking Based On Selection: 5
High Energy Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
293,071
132,402
0.452
* Total Citation Counts Rankings
Ranking Based On Selection: 6
High Energy Physics && Nuclear Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
290,310
128,615
0.443
* Total Citation Counts Rankings
Ranking Based On Selection: 7
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,423
106,489
0.511
* Total Citation Counts Rankings
Ranking Based On Selection: 8
carbon cycle
savannas
earth observation
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185,599
74,331
0.400
* Total Citation Counts Rankings
Ranking Based On Selection: 9
nuclear Physics
high energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177,893
82,391
0.463
* Total Citation Counts Rankings
Ranking Based On Selection: 10
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171,068
72,984
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Experimental High Energy Physics. Detector and Instrumintation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
151,834
57,055
0.376
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,396
55,933
0.401
* Total Citation Counts Rankings
Ranking Based On Selection: 13
HEP
LHC
ATLAS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
138,607
96,600
0.697
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Public Health
Global health
Disease modelling
Climate Changes and disease dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116,157
110,460
0.951
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Computational Physics and Computer Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,762
34,463
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 17
invasion ecology
invasion biology
invasion science
conservation biology
biological invasions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,670
43,373
0.435
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Physics
Thermal Models
particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,069
41,717
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Nuclear Physics
Particle Physics
Diamond Physics
Quantum Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,483
41,470
0.522
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Condensed Matter
Density Functional Theory
Electronic Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
* Total Citation Counts Rankings
Ranking Based On Selection: 21
High Energy physics
Grid Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Ecology
evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,416
30,058
0.439
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Astrophysics
Cosmology
Astro-Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Particle Physics
High Energy Physics
Nuclear Physics
CMS
CERN
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,999
38,080
0.624
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Space weather
ionosphere
cosmic rays
solar physics
particle physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,757
28,818
0.482
* Total Citation Counts Rankings
Rankings
91
1
1
Ranking Based On Selection: 1
Abdeslam Hoummada
Université Hassan II de Casablanca
Casablanca, Morocco
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
372,237
140,955
0.379
* Total Citation Counts Rankings
Rankings
131
1
1
Ranking Based On Selection: 2
Ahmed Ali Abdelalim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345,518
181,980
0.527
* Total Citation Counts Rankings
Rankings
155
2
1
Ranking Based On Selection: 3
Farida Fassi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
327,001
146,849
0.449
High Energy Physics
Big data
Grid Computing
* Total Citation Counts Rankings
Rankings
202
3
2
Ranking Based On Selection: 4
Rajaâ Cherkaoui El Moursli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304,364
142,203
0.467
Nuclear Physics
Medical Physics
High Energy Physics
* Total Citation Counts Rankings
Rankings
233
1
1
Ranking Based On Selection: 5
Sahal Yacoob
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
293,071
132,402
0.452
* Total Citation Counts Rankings
Rankings
247
4
1
Ranking Based On Selection: 6
Driss Benchekroun|Driss Benchekroun
Université Hassan II Ain Chock
Casablanca, Morocco
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
290,310
128,615
0.443
* Total Citation Counts Rankings
Rankings
728
2
2
Ranking Based On Selection: 7
Shaaban Khalil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,423
106,489
0.511
* Total Citation Counts Rankings
Rankings
956
3
1
Ranking Based On Selection: 8
Robert J Scholes
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185,599
74,331
0.400
carbon cycle
savannas
earth observation
biodiversity
* Total Citation Counts Rankings
Rankings
1,023
3
1
Ranking Based On Selection: 9
Ali Ellithi
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177,893
82,391
0.463
* Total Citation Counts Rankings
Rankings
1,101
4
1
Ranking Based On Selection: 10
Mohammed Attia Mahmoud
Fayoum University
Faiyum, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171,068
72,984
0.427
* Total Citation Counts Rankings
Rankings
1,392
5
1
Ranking Based On Selection: 11
Yasser Assran
British University in Egypt
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
151,834
57,055
0.376
Experimental High Energy Physics. Detector and Instrumintation
* Total Citation Counts Rankings
Rankings
1,639
6
2
Ranking Based On Selection: 12
Sherif Elgammal
British University in Egypt
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,396
55,933
0.401
* Total Citation Counts Rankings
Rankings
1,659
5
1
Ranking Based On Selection: 13
Loan Truong
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
138,607
96,600
0.697
* Total Citation Counts Rankings
Rankings
1,764
6
2
Ranking Based On Selection: 14
Bruce Mellado
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Rankings
2,320
9
1
Ranking Based On Selection: 15
Abdallah Samy
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116,157
110,460
0.951
Public Health
Global health
Disease modelling
Climate Changes and disease dynamics
* Total Citation Counts Rankings
Rankings
2,542
10
2
Ranking Based On Selection: 16
Amr Radi
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,762
34,463
0.311
Computational Physics and Computer Sciences
* Total Citation Counts Rankings
Rankings
3,133
8
1
Ranking Based On Selection: 17
David M. Richardson
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,670
43,373
0.435
invasion ecology
invasion biology
invasion science
conservation biology
biological invasions
* Total Citation Counts Rankings
Rankings
4,254
10
6
Ranking Based On Selection: 18
Jean Cleymans
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,069
41,717
0.496
* Total Citation Counts Rankings
Rankings
4,695
12
2
Ranking Based On Selection: 19
Simon Connell
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,483
41,470
0.522
Nuclear Physics
Particle Physics
Diamond Physics
Quantum Physics
* Total Citation Counts Rankings
Rankings
4,762
13
3
Ranking Based On Selection: 20
Daniel Joubert
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
Condensed Matter
Density Functional Theory
Electronic Structure
* Total Citation Counts Rankings
Rankings
5,190
14
4
Ranking Based On Selection: 21
Zeblon Vilakazi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Rankings
6,037
18
9
Ranking Based On Selection: 22
William Bond
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,416
30,058
0.439
* Total Citation Counts Rankings
Rankings
6,860
22
7
Ranking Based On Selection: 23
Sergio Colafrancesco
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
Astrophysics
Cosmology
Astro-Particle Physics
* Total Citation Counts Rankings
Rankings
7,281
13
3
Ranking Based On Selection: 24
Shimaa AbuZeid
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,999
38,080
0.624
Particle Physics
High Energy Physics
Nuclear Physics
CMS
CERN
* Total Citation Counts Rankings
Rankings
7,512
14
1
Ranking Based On Selection: 25
Ayman Mahrous
Egypt Japan University of Science & Technology
Alexandria, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,757
28,818
0.482
Space weather
ionosphere
cosmic rays
solar physics
particle physics