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Production of K*(892)0 and ɸ(1020) in pp and Pb-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%2F68378271%3A_____%2F22%3A00565626" target="_blank" >RIV/68378271:_____/22:00565626 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389005:_____/22:00565626

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevC.106.034907" target="_blank" >https://doi.org/10.1103/PhysRevC.106.034907</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevC.106.034907" target="_blank" >10.1103/PhysRevC.106.034907</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Production of K*(892)0 and ɸ(1020) in pp and Pb-Pb collisions at √sNN=5.02 TeV

  • Original language description

    The production of K *(892)(0) and phi(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at root s(NN) = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (p(T)) distributions of K*(892)(0) and phi(1020) mesons have been measured at midrapidity (vertical bar y vertical bar < 0.5) up to p(T) = 20 GeV/c in inelastic pp collisions and for several Pb-Pb collision centralities. The collision centrality and collision energy dependence of the average transverse momenta agree with the radial flow scenario observed with stable hadrons, showing that the effect is stronger for more central collisions and higher collision energies. The K*(0)/K ratio is found to be suppressed in Pb-Pb collisions relative to pp collisions: this indicates a loss of the measured K *(892)(0) signal due to rescattering of its decay products in the hadronic phase. In contrast, for the longer-lived phi(1020) mesons, no such suppression is observed. The nuclear modification factors (R-AA) of K*(892)(0) and phi(1020) mesons are calculated using pp reference spectra at the same collision energy. In central Pb-Pb collisions for p(T) > 8 GeV/c, the R-AA values of K *(892)(0) and phi(1020) are below unity and observed to be similar to those of pions, kaons, and (anti)protons. The R-AA values at high pT (>8 GeV/c) for K*(892)0 and f(1020) mesons are in agreement within uncertainties for root s(NN) = 5.02 and 2.76 TeV.

  • Czech name

  • Czech description

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

    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

    Physical Review C

  • ISSN

    2469-9985

  • e-ISSN

    2469-9993

  • Volume of the periodical

    106

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    20

  • Pages from-to

    034907

  • UT code for WoS article

    000890202900004

  • EID of the result in the Scopus database

    2-s2.0-85140581730