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arXiv · 1901.09766

Phenomenological NLO analysis of eta(c) production at the LHC in the collider and fixed-target modes

Yu Feng·Jibo He·Jean-Philippe Lansberg·Hua-Sheng Shao·Andrii Usachov·Hong-Fei Zhang
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Abstract

In view of the good agreement between the LHCb prompt-eta(c) data at sqrt(s)=7 and 8 TeV and the NLO colour-singlet model predictions --i.e. the leading v^2 NRQCD contribution--, we provide predictions in the LHCb acceptance for the forthcoming 13 TeV analysis bearing on data taken during the LHC Run2. We also provide predictions for sqrt(s)=115 GeV for proton-hydrogen collisions in the fixed-target mode which could be studied during the LHC Run3. Our predictions are complemented by a full theoretical uncertainty analysis. In addition to cross section predictions, we elaborate on the uncertainties on the p bar-p branching ratio --necessary for data-theory comparison-- and discuss other usable branching fractions for future studies.

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Yu Feng, Jibo He, Jean-Philippe Lansberg, Hua-Sheng Shao, Andrii Usachov, Hong-Fei Zhang. 2019-01-28. Phenomenological NLO analysis of eta(c) production at the LHC in the collider and fixed-target modes. https://doi.org/10.1016/j.nuclphysb.2019.114662

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