Measurement of the ηc(1S) production cross-section in pp collisions at s=13TeV

Abstract

Using a data sample corresponding to an integrated luminosity of 2.0 fb-1$$, \text {fb} ^{-1}$$, collected by the LHCb experiment, the production of the ηc(1S)$${\eta _{c}} (1S)$$ state in proton–proton collisions at a centre-of-mass energy of s=13$$\sqrt{s} =13$$TeV$$, \text {TeV}$$ is studied in the rapidity range 2.0