Multiplicity dependence of charged-particle jet production in pp collisions at √s = 13 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00558716" target="_blank" >RIV/68378271:_____/22:00558716 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/22:00558716
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-022-10405-x" target="_blank" >https://doi.org/10.1140/epjc/s10052-022-10405-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-022-10405-x" target="_blank" >10.1140/epjc/s10052-022-10405-x</a>
Alternative languages
Result language
angličtina
Original language name
Multiplicity dependence of charged-particle jet production in pp collisions at √s = 13 TeV
Original language description
The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of root s = 13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-k(T) algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range vertical bar eta(jet)vertical bar < 0.9 - R and in the transverse momentum range 5 < P-T,jet(ch) < 140 GeV/c. The multiplicity intervals are categorised by the ALICE forward detector V0. The p(T )differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20 GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.
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/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
82
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
30
Pages from-to
514
UT code for WoS article
000807521100001
EID of the result in the Scopus database
2-s2.0-85134078179