Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at root s(NN)=2.76 TeV at the LHC

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00480632" target="_blank" >RIV/61389005:_____/17:00480632 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/17:00480632 RIV/68407700:21340/17:00318516

Result on the web

<a href="http://dx.doi.org/10.1140/epjc/s10052-017-5222-x" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-017-5222-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-017-5222-x" target="_blank" >10.1140/epjc/s10052-017-5222-x</a>

Result language

angličtina

Original language name

Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at root s(NN)=2.76 TeV at the LHC

Original language description

The transverse momentum (p(T)) spectra and elliptic flow coefficient (v(2)) of deuterons and anti-deuterons at mid-rapidity (|y| < 0.5) are measured with the ALICE detector at the LHC in Pb-Pb collisions at root s(NN) = 2.76 TeV. The measurement of the p(T) spectra of (anti-)deuterons is done up to 8 GeV/c in 0-10% centrality class and up to 6 GeV/c in 10-20% and 20-40% centrality classes. The v(2) is measured in the 0.8 < p(T) < 5 GeV/c interval and in six different centrality intervals (0-5, 5-10, 10-20, 20-30, 30-40 and 40-50%) using the scalar product technique. Measured pi(+/-), K-+/- and p+(p) over bar transverse-momentum spectra and v(2) are used to predict the deuteron p(T) spectra and v(2) within the Blast-Wave model. The predictions are able to reproduce the v(2) coefficient in the measured p(T) range and the transverse-momentum spectra for p(T) > 1.8 GeV/c within the experimental uncertainties. The measurement of the coalescence parameter B-2 is performed, showing a p(T) dependence in contrast with the simplest coalescence model, which fails to reproduce also the measured v(2) coefficient. In addition, the coalescence parameter B-2 and the elliptic flow coefficient in the 20-40% centrality interval are compared with the AMPT model which is able, in its version without string melting, to reproduce the measured v(2)(p(T)) and the B-2(p(T)) trend.

Czech name

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Czech description

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Type

J_imp - 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

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

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

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Volume of the periodical

77

Issue of the periodical within the volume

10

Country of publishing house

US - UNITED STATES

Number of pages

20

Pages from-to

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UT code for WoS article

000412302000001

EID of the result in the Scopus database

2-s2.0-85030866390