Inclusive $\psi$(2S)-to-J/$\psi$ cross section ratio as a function of $y$ in pp collisions at $\s$ = 7 [12] (top left), 8 [13] (top right), and 13 TeV [9] (bottom left). The data are compared with theoretical calculations from ICEM + FONLL [47,49]. |    |
Inclusive $\psi$(2S)-to-J/$\psi$ cross section ratio as a function of $y$ in pp collisions at $\s$ = 7 [12] (top left), 8 [13] (top right), and 13 TeV [9] (bottom left). The data are compared with theoretical calculations from ICEM + FONLL [47,49]. | |