Measurement of the angle between jet axes in pp collisions at root s=5.02 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00369684" target="_blank" >RIV/68407700:21340/23:00369684 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/JHEP07(2023)201" target="_blank" >https://doi.org/10.1007/JHEP07(2023)201</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2023)201" target="_blank" >10.1007/JHEP07(2023)201</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the angle between jet axes in pp collisions at root s=5.02 TeV
Original language description
This article reports measurements of the angle between differently defined jet axes in pp collisions at root s = 5.02TeV carried out by the ALICE Collaboration. Charged particles at midrapidity are clustered into jets with resolution parameters R = 0.2 and 0.4. The jet axis, before and after Soft Drop grooming, is compared to the jet axis from the Winner-Takes-All (WTA) recombination scheme. The angle between these axes, Delta R-axis, probes a wide phase space of the jet formation and evolution, ranging from the initial high-momentum-transfer scattering to the hadronization process. The Delta R-axis observable is presented for 20 < p(T)(ch jet) < 100 GeV/c, and compared to predictions from the PYTHIA 8 and Herwig 7 event generators. The distributions can also be calculated analytically with a leading hadronization correction related to the non-perturbative component of the Collins Soper-Sterman (CSS) evolution kernel. Comparisons to analytical predictions at nextto-leading-logarithmic accuracy with leading hadronization correction implemented from experimental extractions of the CSS kernel in Drell-Yan measurements are presented. The analytical predictions describe the measured data within 20% in the perturbative regime, with surprising agreement in the non-perturbative regime as well. These results are compatible with the universality of the CSS kernel in the context of jet substructure.
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
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2018104" target="_blank" >LM2018104: Research Infrastructure for experiments at CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2023
Issue of the periodical within the volume
7
Country of publishing house
IT - ITALY
Number of pages
48
Pages from-to
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UT code for WoS article
001061843600001
EID of the result in the Scopus database
2-s2.0-85166272786