Underlying-event properties in pp and p–Pb collisions at √sNN = 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_____%2F23%3A00575579" target="_blank" >RIV/61389005:_____/23:00575579 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/23:00575579
Result on the web
<a href="https://doi.org/10.1007/JHEP06(2023)023" target="_blank" >https://doi.org/10.1007/JHEP06(2023)023</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2023)023" target="_blank" >10.1007/JHEP06(2023)023</a>
Alternative languages
Result language
angličtina
Original language name
Underlying-event properties in pp and p–Pb collisions at √sNN = 5.02 TeV
Original language description
We report about the properties of the underlying event measured with ALICE at the LHC in pp and p-Pb collisions at root sNN = 5.02 TeV. The event activity, quantified by charged-particle number and summed- pT densities, is measured as a function of the leadingparticle transverse momentum (p(T)(trig)). These quantities are studied in three azimuthalangle regions relative to the leading particle in the event: toward, away, and transverse. Results are presented for three different p(T) thresholds (0.15, 0.5 and 1 GeV/c) at midpseudorapidity (|eta| < 0.8). The event activity in the transverse region, which is the most sensitive to the underlying event, exhibits similar behaviour in both pp and p-Pb collisions, namely, a steep increase with p(T)(trig) for low p(trig) (T), followed by a saturation at p(T)(trig) approximate to 5 GeV/c. The results from pp collisions are compared with existing measurements at other centre-ofmass energies. The quantities in the toward and away regions are also analyzed after the subtraction of the contribution measured in the transverse region. The remaining jet-like particle densities are consistent in pp and p-Pb collisions for p(trig) (T) > 10 GeV/c, whereas for lower p(T)(trig) values the event activity is slightly higher in p-Pb than in pp collisions. The measurements are compared with predictions from the PYTHIA 8 and EPOS LHC Monte Carlo event generators.
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
10304 - Nuclear physics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
6
Country of publishing house
US - UNITED STATES
Number of pages
38
Pages from-to
23
UT code for WoS article
001035464000001
EID of the result in the Scopus database
2-s2.0-85161403453