Speaker
Sushree S. Mishra
Description
The heavy-quark symmetry of Non-Relativistic Quantum Chromodynamics (NRQCD) allows to generate the predictions of the cross-section for $\eta_c$ production. However, when compared to LHCb data, the NRQCD predictions fail significantly. In contrast, modified NRQCD offers a neat solution to the $\eta_c$ anomaly observed by the LHCb, successfully explaining all aspects of the $\eta_c$ data. We also compare recent LHCb measurements of the integrated cross-section for $h_c$ production at $\sqrt{s}$ = 13 TeV to theoretical predictions based on both NRQCD and modified NRQCD models. The modified NRQCD approach shows good agreement with the recent LHCb data.
| Field of contribution | Phenomenology |
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