η c ′ hadroproduction at next-to-leading order and its relevance to ψ ′ production

摘要

We proceed to the first phenomenological study ofηc′prompt hadroproduction at next-to-leading order inαs. Based on heavy-quark-spin symmetry, which is systematically used in quarkonium-production phenomenology, we demonstrate that promptηc′can be studied at the LHC with the existing data. We emphasise its relevance to constrainψ′production, in the same way as the first promptηcdata at the LHC lately strongly impacted the phenomenology ofJ/ψstudies.