Correlations and flavors in jets in ALICE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00458640" target="_blank" >RIV/61389005:_____/16:00458640 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/668/1/012018" target="_blank" >http://dx.doi.org/10.1088/1742-6596/668/1/012018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/668/1/012018" target="_blank" >10.1088/1742-6596/668/1/012018</a>

Result language

angličtina

Original language name

Correlations and flavors in jets in ALICE

Original language description

We report on the measurement of hadron composition in charged jets in pp at root s = 7 TeV and show the first data on particle type dependent jet fragmentation at the LHC. Further, we present (Lambda + (Lambda) over bar)/2K(S)(0) ratios measured in charged jets in Pb-Pb collisions at root s(NN) = 2.76 TeV and in p-Pb collisions at root s(NN) = 5.02 TeV. While the ratio of the inclusive p(T) spectra of A and K-S(0) exhibits centrality dependent enhancement both in the Pb-Pb and p-Pb system, the (Lambda + (Lambda) over bar)/2K(S)(0) ratio measured in charged jets reveals that jet fragmentation does not contribute to the observed baryon anomaly. nFinally, we discuss the measurement of semi-inclusive p(T) spectra of charged jets that recoil from a high-p(T) hadron trigger in Pb-Pb and pp collisions at root s(NN) = 2.76 TeV and root s = 7 TeV, respectively. The jet yield uncorrelated with the trigger hadron is removed at the event-ensemble level without introducing a bias on the jet population, which is therefore infrared and collinear safe. The recoil jet yield in central Pb Pb is found to be suppressed w.r.t. that from pp PYTHIA reference. On the other hand, there is no sign of intra-jet broadening even for anti-k(T) jets with a resolution parameter as large as R = 0.5.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

<a href="/en/project/LG13031" target="_blank" >LG13031: Collaboration of the Czech Republic with CERN</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Article name in the collection

Journal of Physics Conference Series

ISBN

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ISSN

1742-6588

e-ISSN

—

Number of pages

8

Pages from-to

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Publisher name

IOP Publishing Ltd.

Place of publication

Bristol

Event location

Dubna

Event date

Jul 6, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000371691300018