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Measurements of Groomed-Jet Substructure of Charm Jets Tagged by D^{0} Mesons in Proton-Proton Collisions at sqrt[s]=13  TeV

Acharya, S. ; Basu, S. LU orcid ; Christiansen, P. LU and Zurlo, N (2023) In Physical Review Letters 131(19).
Abstract
Understanding the role of parton mass and Casimir color factors in the quantum chromodynamics parton shower represents an important step in characterizing the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterize gluon emissions from heavy quarks. In this Letter, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D^{0} meson. The measurement is made in proton-proton collisions at sqrt[s]=13  TeV, in the low jet transverse-momentum interval of 15≤p_{T}^{jet ch}
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author
; ; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
proton, article, color, gluon, meson, quark
in
Physical Review Letters
volume
131
issue
19
article number
192301
publisher
American Physical Society
external identifiers
  • scopus:85177792817
  • pmid:38000395
ISSN
1079-7114
DOI
10.1103/PhysRevLett.131.192301
language
English
LU publication?
yes
id
16287488-c569-472f-a426-74a1081b3e9e
date added to LUP
2024-01-16 14:25:03
date last changed
2024-01-17 03:05:38
@article{16287488-c569-472f-a426-74a1081b3e9e,
  abstract     = {{Understanding the role of parton mass and Casimir color factors in the quantum chromodynamics parton shower represents an important step in characterizing the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterize gluon emissions from heavy quarks. In this Letter, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D^{0} meson. The measurement is made in proton-proton collisions at sqrt[s]=13  TeV, in the low jet transverse-momentum interval of 15≤p_{T}^{jet ch}}},
  author       = {{Acharya, S. and Basu, S. and Christiansen, P. and Zurlo, N}},
  issn         = {{1079-7114}},
  keywords     = {{proton; article; color; gluon; meson; quark}},
  language     = {{eng}},
  number       = {{19}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Measurements of Groomed-Jet Substructure of Charm Jets Tagged by D^{0} Mesons in Proton-Proton Collisions at sqrt[s]=13  TeV}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.131.192301}},
  doi          = {{10.1103/PhysRevLett.131.192301}},
  volume       = {{131}},
  year         = {{2023}},
}