Multi-parton interactions in the LHC Run 3 and beyond

15 Nov 2022, 12:00
WG4: Small-x and Diffraction WG4: Small-x and Diffraction


Antonio Ortiz Velasquez (UNAM, Mexico)


The studies as a function of the charged-particle multiplicity allowed the discovery of heavy-ion-like effects in pp collisions. However, to some degree, the multiplicity classifiers used so far bias the sample towards hard processes like multi-jet final states. This limitation of the existing event classifiers makes it difficult to perform, for example, jet-quenching searches in high-multiplicity pp collisions. In this work I will discuss different approaches that have been developed over the last few years. The studies range from machine learning to a new event classifier called flattenicity. The resulting event classifiers have shown a strong sensitivity to multi-parton interactions.

Primary author

Antonio Ortiz Velasquez (UNAM, Mexico)

Presentation Materials

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