scholarly journals Positronium energy levels at ordermα7: Product contributions in the two-photon-annihilation channel

2016 ◽  
Vol 93 (5) ◽  
Author(s):  
Gregory S. Adkins ◽  
Lam M. Tran ◽  
Ruihan Wang
2014 ◽  
Vol 90 (4) ◽  
Author(s):  
Gregory S. Adkins ◽  
Christian Parsons ◽  
M. D. Salinger ◽  
Ruihan Wang ◽  
Richard N. Fell

2021 ◽  
Vol 54 (17) ◽  
pp. 175001
Author(s):  
S T Orson ◽  
C D McLaughlin ◽  
M D Lindsay ◽  
R J Knize

1974 ◽  
Vol 48 (4) ◽  
pp. 380-384 ◽  
Author(s):  
S. Orito ◽  
M.L. Ferrer ◽  
L. Paoluzi ◽  
R. Santonico

1990 ◽  
Vol 37 (2) ◽  
pp. 197-202 ◽  
Author(s):  
Ing-Fang Lee ◽  
Yuan-Hsiang Lee ◽  
Yen-Chu Hsu
Keyword(s):  

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