Non-linear flow modes of identified particles in Pb-Pb collisions at root S-NN=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_____%2F20%3A00531349" target="_blank" >RIV/61389005:_____/20:00531349 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/20:00531349 RIV/68407700:21340/20:00342795
Result on the web
<a href="https://doi.org/10.1007/JHEP06(2020)147" target="_blank" >https://doi.org/10.1007/JHEP06(2020)147</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2020)147" target="_blank" >10.1007/JHEP06(2020)147</a>
Alternative languages
Result language
angličtina
Original language name
Non-linear flow modes of identified particles in Pb-Pb collisions at root S-NN=5.02 TeV
Original language description
The p(T)-differential non-linear flow modes, v(4,22), v(5,32), v(6, 33) and v(6,222) for pi(+/-), K-+/-, K-S(0), p + (p) over bar, Lambda + (Lambda) over bar and phi-meson have been measured for the first time at root SNN = 5.02 TeV in Pb-Pb collisions with the ALICE detector at the Large Hadron Collider. The results were obtained with a multi-particle technique, correlating the identified hadrons with reference charged particles from a different pseudorapidity region. These non-linear observables probe the contribution from the second and third order initial spatial anisotropy coefficients to higher flow harmonics. All the characteristic features observed in previous p(T) -differential anisotropic flow measurements for various particle species are also present in the non-linear flow modes, i.e. increase of magnitude with increasing centrality percentile, mass ordering at low p(T )and particle type grouping in the intermediate p(T) range. Hydrodynamical calculations (iEBE-VISHNU) that use different initial conditions and values of shear and bulk viscosity to entropy density ratios are confronted with the data at low transverse momenta. These calculations exhibit a better agreement with the anisotropic flow coefficients than the non-linear flow modes. These observations indicate that non-linear flow modes can provide additional discriminatory power in the study of initial conditions as well as new stringent constraints to hydrodynamical calculations.
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
10304 - Nuclear physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
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
—
Volume of the periodical
2020
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
48
Pages from-to
147
UT code for WoS article
000545685300001
EID of the result in the Scopus database
2-s2.0-85087044807