scholarly journals Measurement of the $\psi(2S)$ and $J\psi$ cross section ratio in photoproduction with the ZEUS detector at HERA

2020 ◽  
Author(s):  
Grzegorz Grzelak ◽  
1977 ◽  
Vol 71 (1) ◽  
pp. 222-226 ◽  
Author(s):  
M. Holder ◽  
J. Knobloch ◽  
J. May ◽  
H.P. Paar ◽  
P. Palazzi ◽  
...  

2012 ◽  
Vol 714 (2-5) ◽  
pp. 215-223 ◽  
Author(s):  
R. Aaij ◽  
C. Abellan Beteta ◽  
B. Adeva ◽  
M. Adinolfi ◽  
C. Adrover ◽  
...  

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