  The charged particle multiplicity distribution in high energy hadronic and
nuclear collisions receive contribution from both diffractive and non
diffractive processes. It is experimentally challenging to segregate
diffractive events from non-diffractive events. The present work aims to
separate and extract the charged particle multiplicity distribution of
diffractive and non-diffractive events in hadronic collisions at LHC energies.
A data driven model using the topic modelling statistical tool, DEMIX, has been
used to demonstrate the proof of concept for p p collisions at 7 TeV generated
by Pythia 8 event generator. The study suggests that DEMIX technique can be
used to extract the underlying base distributions and fractions for
experimental observables pertaining to diffractive and non-diffractive events
at LHC energies and can therefore be used as a step forward for an experimental
determination of precise inelastic cross-sections in pp collisions.
