D0-meson-tagged jet axes difference in proton-proton collisions at √s=5.02 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00645515" target="_blank" >RIV/61389005:_____/25:00645515 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/25:00645515
Result on the web
<a href="https://journals.aps.org/prd/abstract/10.1103/nt4q-7t77" target="_blank" >https://journals.aps.org/prd/abstract/10.1103/nt4q-7t77</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/nt4q-7t77" target="_blank" >10.1103/nt4q-7t77</a>
Alternative languages
Result language
angličtina
Original language name
D0-meson-tagged jet axes difference in proton-proton collisions at √s=5.02 TeV
Original language description
Heavy-flavor quarks produced in proton- proton (pp) collisions provide a unique opportunity to investigate the evolution of quark-initiated parton showers from initial hard scatterings to final-state hadrons. By examining jets that contain heavy-flavor hadrons, this study explores the effects of both perturbative and nonperturbative QCD on jet formation and structure. The angular differences between various jet axes, Delta R-axis, offer insight into the radiation patterns and fragmentation of charm quarks. The first measurement of D-0-tagged jet axes differences in pp collisions at root s = 5.02 TeV by the ALICE experiment at the LHC is presented for jets with transverse momentum p(ch jet) (T) >= 10 GeV/c and D-0 mesons with p(D0) (T) >= 5 GeV/c. In this D-0-meson-tagged jet measurement, three jet axis definitions, each with different sensitivities to soft, wide-angle radiation, are used: the standard axis, soft drop groomed axis, and winner-takes-all axis. Measurements of the radial distributions of D-0 mesons with respect to the jet axes, Delta R-axis-D(0), are reported, along with the angle, Delta R-axis, between the three jet axes. The D-0 meson emerges as the leading particle in these jets, closely aligning with the winner-takes-all axis and diverging from the standard jet axis. The results also examine how varying the sensitivity to soft radiation with grooming influences the orientation of the soft drop jet axis and uncover that charm-jet structure is more likely to survive grooming when the soft drop axis is further from the D-0 direction, providing further evidence of the dead-cone effect recently measured by ALICE.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
112
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
092012
UT code for WoS article
001641131800001
EID of the result in the Scopus database
2-s2.0-105026906764