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Measurements of jet quenching via hadron+jet correlations in Pb-Pb and high-particle multiplicity pp collisions with ALICE

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00557397" target="_blank" >RIV/61389005:_____/22:00557397 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.22323/1.398.0293" target="_blank" >http://dx.doi.org/10.22323/1.398.0293</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.22323/1.398.0293" target="_blank" >10.22323/1.398.0293</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurements of jet quenching via hadron+jet correlations in Pb-Pb and high-particle multiplicity pp collisions with ALICE

  • Original language description

    Semi-inclusive measurements of hadron-jet acoplanarity are utilized to search for jet quenching effects in the 0-10% most central Pb-Pb collisions at vsNN = 5.02 TeV and the high-multiplicity pp collisions at vs = 13 TeV. In the Pb-Pb system, where quark-gluon plasma formation is established, a narrowing and suppression of the acoplanarity is observed relative to the PYTHIA-simulated pp reference. In contrast, the acoplanarity distributions that were measured in the high-multiplicity pp events exhibit a marked broadening and suppression with respect to the analogous distributions obtained from the minimum bias events. The observed features are, however, qualitatively reproduced by the PYTHIA 8 Monte Carlo event generator, which does not incorporate jet quenching. The PYTHIA simulations reveal that the observed suppression and broadening are the consequence of a bias induced by the ALICE high-multiplicity trigger, which increases the probability to observe a high-pT recoil jet in the acceptance of the forward trigger detectors and which biases toward multi-jet final states.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • Article name in the collection

    Proceedings of Science

  • ISBN

  • ISSN

    1824-8039

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    293

  • Publisher name

    Sissa Medialab srl

  • Place of publication

    Trieste

  • Event location

    online

  • Event date

    Jul 26, 2021

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article