dorsal/arxiv
View SchemaProbing the microscopic origin of prompt and non-prompt $D^{0}$ production through event-shape engineering in proton-proton collisions at the LHC
| Authors | Aswathy Menon Kavumpadikkal Radhakrishnan, Suraj Prasad, Purnima Srivastava, Raghunath Sahoo |
|---|---|
| Categories | |
| ArXiv ID | 2601.06856vv1 |
| URL | https://arxiv.org/abs/2601.06856 |
| License | http://creativecommons.org/licenses/by-sa/4.0/ |
Abstract
Heavy-flavour hadrons are produced in the early stages of ultra-relativistic collisions at the LHC via hard partonic interactions and experience the whole system evolution. The study of prompt and non-prompt $D^{0}$ mesons provides an independent avenue to test the theories of quantum chromodynamics and to investigate beauty hadron production. Moreover, the production of both prompt and non-prompt $D^{0}$ is influenced by microscopic processes such as multi-partonic interactions (MPI) and hadronisation through fragmentation. In this study, an attempt is made to understand the production of prompt and non-prompt $D^{0}$ mesons in proton-proton collisions at $\sqrt{s}=13.6$ TeV using the PYTHIA8 event generator, which offers a qualitative description of charm production. The role of the transverse momentum transfer in the hardest partonic scattering ($\hat{p}_{\rm T}$), MPI, and color reconnection is systematically explored. In addition, the charged particle production in different topological regions with respect to the leading $D^{0}$ meson is studied to assess the influence of the $D^{0}$ meson on the event topology and to examine the selection biases arising from the use of charged particle multiplicity as an event classifier.
{
"annotation_id": "2662fa3f-493a-4fcd-b2c1-25065c7abf4a",
"date_created": "2026-02-17T05:53:08.802000Z",
"date_modified": "2026-02-17T05:53:08.802000Z",
"file_hash": "2e72e2908772dec0a77103c4ba5c2b3f31518aa9b59fe9f1cf3e6c584143b9dc",
"private": false,
"record": {
"abstract": "Heavy-flavour hadrons are produced in the early stages of ultra-relativistic collisions at the LHC via hard partonic interactions and experience the whole system evolution. The study of prompt and non-prompt $D^{0}$ mesons provides an independent avenue to test the theories of quantum chromodynamics and to investigate beauty hadron production. Moreover, the production of both prompt and non-prompt $D^{0}$ is influenced by microscopic processes such as multi-partonic interactions (MPI) and hadronisation through fragmentation. In this study, an attempt is made to understand the production of prompt and non-prompt $D^{0}$ mesons in proton-proton collisions at $\\sqrt{s}=13.6$ TeV using the PYTHIA8 event generator, which offers a qualitative description of charm production. The role of the transverse momentum transfer in the hardest partonic scattering ($\\hat{p}_{\\rm T}$), MPI, and color reconnection is systematically explored. In addition, the charged particle production in different topological regions with respect to the leading $D^{0}$ meson is studied to assess the influence of the $D^{0}$ meson on the event topology and to examine the selection biases arising from the use of charged particle multiplicity as an event classifier.",
"arxiv_id": "2601.06856",
"authors": [
"Aswathy Menon Kavumpadikkal Radhakrishnan",
"Suraj Prasad",
"Purnima Srivastava",
"Raghunath Sahoo"
],
"categories": [
"hep-ph",
"hep-ex",
"nucl-ex",
"nucl-th"
],
"license": "http://creativecommons.org/licenses/by-sa/4.0/",
"title": "Probing the microscopic origin of prompt and non-prompt $D^{0}$ production through event-shape engineering in proton-proton collisions at the LHC",
"url": "https://arxiv.org/abs/2601.06856",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "7ca198e1-9f18-40e9-a3ca-e40c8800d348",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}