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