Long-range angular correlations of pi, K and p in p--Pb collisions at sqrt(s_NN) = 5.02 TeV

Angular correlations between unidentified charged trigger particles and various species of charged associated particles (unidentified particles, pions, kaons, protons and antiprotons) are measured by the ALICE detector in p-Pb collisions at a nucleon--nucleon centre-of-mass energy of 5.02 TeV in the...

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Published in:Physics letters. B 2013-07, Vol.726, p.164-177
Main Authors: Abelev, B., Arbor, N., Conesa Balbastre, G., Faivre, J., Furget, C., Guernane, R., Kox, S., Real, J.S., Silvestre, C., Vernet, R., Belikov, I., Hippolyte, B., Kuhn, C., Molnar, L., Roy, C., Sanchez Castro, X., Aphecetche, Laurent, Batigne, Guillaume, Bergognon, E., Bregant, M., Delagrange, H., Erazmus, B., Estienne, Magali, Germain, Marie, Lardeux, A., Martinez Garcia, Gines, Martin Blanco, J., Mas, A., Massacrier, L., Pillot, Philippe, Schutz, Y., Shabetai, Alexandre, Stocco, Diego, Cheshkov, C., Cheynis, B., Ducroux, L., Guilbaud, Maxime, Tieulent, R., Uras, A., Zoccarato, Y., Baek, Y.W., Barret, V., Bastid, N., Crochet, P., Dupieux, P., Ichou, R., Li, S., Lopez, X., Manso, F., Marchisone, M., Porteboeuf-Houssais, S., Rosnet, P., Vulpescu, B., Zhang, X., Conesa del Valle, Z., Das, I., Espagnon, B., Hadjidakis, C., Hřivnáčová, I., Lakomov, I., Suire, C., Tapia Takaki, J.D., Valencia Palomo, L.
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Language:English
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High Energy Physics - Experiment
Nuclear Experiment
Physics
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container_start_page 164
container_title Physics letters. B
container_volume 726
creator Abelev, B.
Arbor, N.
Conesa Balbastre, G.
Faivre, J.
Furget, C.
Guernane, R.
Kox, S.
Real, J.S.
Silvestre, C.
Vernet, R.
Belikov, I.
Hippolyte, B.
Kuhn, C.
Molnar, L.
Roy, C.
Sanchez Castro, X.
Aphecetche, Laurent
Batigne, Guillaume
Bergognon, E.
Bregant, M.
Delagrange, H.
Erazmus, B.
Estienne, Magali
Germain, Marie
Lardeux, A.
Martinez Garcia, Gines
Martin Blanco, J.
Mas, A.
Massacrier, L.
Pillot, Philippe
Schutz, Y.
Shabetai, Alexandre
Stocco, Diego
Cheshkov, C.
Cheynis, B.
Ducroux, L.
Guilbaud, Maxime
Tieulent, R.
Uras, A.
Zoccarato, Y.
Baek, Y.W.
Barret, V.
Bastid, N.
Crochet, P.
Dupieux, P.
Ichou, R.
Li, S.
Lopez, X.
Manso, F.
Marchisone, M.
Porteboeuf-Houssais, S.
Rosnet, P.
Vulpescu, B.
Zhang, X.
Conesa del Valle, Z.
Das, I.
Espagnon, B.
Hadjidakis, C.
Hřivnáčová, I.
Lakomov, I.
Suire, C.
Tapia Takaki, J.D.
Valencia Palomo, L.
description Angular correlations between unidentified charged trigger particles and various species of charged associated particles (unidentified particles, pions, kaons, protons and antiprotons) are measured by the ALICE detector in p-Pb collisions at a nucleon--nucleon centre-of-mass energy of 5.02 TeV in the transverse-momentum range 0.3 < p_T < 4 GeV/c. The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range |eta_lab|
doi_str_mv 10.1016/j.physletb.2013.08.024
format article
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A mass ordering effect at low transverse momenta is consistent with expectations from hydrodynamic model calculations assuming a collectively expanding system.</description><subject>High Energy Physics - Experiment</subject><subject>Nuclear Experiment</subject><subject>Physics</subject><issn>0370-2693</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNotjj1PwzAYhD2ARCn8BeQRBA6v7XzYA0NVAUVEhSFiYYjs1G5dmcTYAan_nghY7oZ7dHcIXVDIKNDydp-F3SF5M-qMAeUZiAxYfoRmwCsgrJT8BJ2mtAcAWkA5Q-_10G9JVP3W4Em-vIq4G2I0Xo1u6BMeLA7uBj9P6QYH7HocCHnVE-S9S7-IGnH6jONlatfrK3yHi2kTN-btDB1b5ZM5__c5ah7um-WK1C-PT8tFTbqKUWI5SC5slVfdxuZGWuBQUtblVE5_C6U7aVlRmA6k1VUutKCcMmqNohq0FnyOrv9qd8q3IboPFQ_toFy7WtSt61ngLYDIuZD8m_IfyhlUhQ</recordid><startdate>20130711</startdate><enddate>20130711</enddate><creator>Abelev, B.</creator><creator>Arbor, N.</creator><creator>Conesa Balbastre, G.</creator><creator>Faivre, J.</creator><creator>Furget, C.</creator><creator>Guernane, R.</creator><creator>Kox, S.</creator><creator>Real, J.S.</creator><creator>Silvestre, C.</creator><creator>Vernet, R.</creator><creator>Belikov, I.</creator><creator>Hippolyte, B.</creator><creator>Kuhn, C.</creator><creator>Molnar, L.</creator><creator>Roy, C.</creator><creator>Sanchez Castro, X.</creator><creator>Aphecetche, Laurent</creator><creator>Batigne, Guillaume</creator><creator>Bergognon, E.</creator><creator>Bregant, M.</creator><creator>Delagrange, H.</creator><creator>Erazmus, B.</creator><creator>Estienne, Magali</creator><creator>Germain, Marie</creator><creator>Lardeux, A.</creator><creator>Martinez Garcia, Gines</creator><creator>Martin Blanco, J.</creator><creator>Mas, A.</creator><creator>Massacrier, L.</creator><creator>Pillot, Philippe</creator><creator>Schutz, Y.</creator><creator>Shabetai, Alexandre</creator><creator>Stocco, Diego</creator><creator>Cheshkov, C.</creator><creator>Cheynis, B.</creator><creator>Ducroux, L.</creator><creator>Guilbaud, Maxime</creator><creator>Tieulent, R.</creator><creator>Uras, A.</creator><creator>Zoccarato, Y.</creator><creator>Baek, Y.W.</creator><creator>Barret, V.</creator><creator>Bastid, N.</creator><creator>Crochet, P.</creator><creator>Dupieux, P.</creator><creator>Ichou, R.</creator><creator>Li, S.</creator><creator>Lopez, X.</creator><creator>Manso, F.</creator><creator>Marchisone, M.</creator><creator>Porteboeuf-Houssais, S.</creator><creator>Rosnet, P.</creator><creator>Vulpescu, B.</creator><creator>Zhang, X.</creator><creator>Conesa del Valle, Z.</creator><creator>Das, I.</creator><creator>Espagnon, B.</creator><creator>Hadjidakis, C.</creator><creator>Hřivnáčová, I.</creator><creator>Lakomov, I.</creator><creator>Suire, C.</creator><creator>Tapia Takaki, J.D.</creator><creator>Valencia Palomo, L.</creator><general>Elsevier</general><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-7382-1609</orcidid><orcidid>https://orcid.org/0000-0001-5283-3520</orcidid><orcidid>https://orcid.org/0000-0002-8657-6742</orcidid><orcidid>https://orcid.org/0000-0001-7662-3878</orcidid><orcidid>https://orcid.org/0000-0001-8638-6300</orcidid><orcidid>https://orcid.org/0000-0002-5377-5163</orcidid><orcidid>https://orcid.org/0000-0002-9067-0803</orcidid><orcidid>https://orcid.org/0000-0003-3069-726X</orcidid><orcidid>https://orcid.org/0000-0002-2646-6189</orcidid><orcidid>https://orcid.org/0000-0003-1584-783X</orcidid><orcidid>https://orcid.org/0000-0001-5920-6271</orcidid><orcidid>https://orcid.org/0000-0003-0687-5580</orcidid><orcidid>https://orcid.org/0000-0001-5990-482X</orcidid></search><sort><creationdate>20130711</creationdate><title>Long-range angular correlations of pi, K and p in p--Pb collisions at sqrt(s_NN) = 5.02 TeV</title><author>Abelev, B. ; 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B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abelev, B.</au><au>Arbor, N.</au><au>Conesa Balbastre, G.</au><au>Faivre, J.</au><au>Furget, C.</au><au>Guernane, R.</au><au>Kox, S.</au><au>Real, J.S.</au><au>Silvestre, C.</au><au>Vernet, R.</au><au>Belikov, I.</au><au>Hippolyte, B.</au><au>Kuhn, C.</au><au>Molnar, L.</au><au>Roy, C.</au><au>Sanchez Castro, X.</au><au>Aphecetche, Laurent</au><au>Batigne, Guillaume</au><au>Bergognon, E.</au><au>Bregant, M.</au><au>Delagrange, H.</au><au>Erazmus, B.</au><au>Estienne, Magali</au><au>Germain, Marie</au><au>Lardeux, A.</au><au>Martinez Garcia, Gines</au><au>Martin Blanco, J.</au><au>Mas, A.</au><au>Massacrier, L.</au><au>Pillot, Philippe</au><au>Schutz, Y.</au><au>Shabetai, Alexandre</au><au>Stocco, Diego</au><au>Cheshkov, C.</au><au>Cheynis, B.</au><au>Ducroux, L.</au><au>Guilbaud, Maxime</au><au>Tieulent, R.</au><au>Uras, A.</au><au>Zoccarato, Y.</au><au>Baek, Y.W.</au><au>Barret, V.</au><au>Bastid, N.</au><au>Crochet, P.</au><au>Dupieux, P.</au><au>Ichou, R.</au><au>Li, S.</au><au>Lopez, X.</au><au>Manso, F.</au><au>Marchisone, M.</au><au>Porteboeuf-Houssais, S.</au><au>Rosnet, P.</au><au>Vulpescu, B.</au><au>Zhang, X.</au><au>Conesa del Valle, Z.</au><au>Das, I.</au><au>Espagnon, B.</au><au>Hadjidakis, C.</au><au>Hřivnáčová, I.</au><au>Lakomov, I.</au><au>Suire, C.</au><au>Tapia Takaki, J.D.</au><au>Valencia Palomo, L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long-range angular correlations of pi, K and p in p--Pb collisions at sqrt(s_NN) = 5.02 TeV</atitle><jtitle>Physics letters. B</jtitle><date>2013-07-11</date><risdate>2013</risdate><volume>726</volume><spage>164</spage><epage>177</epage><pages>164-177</pages><issn>0370-2693</issn><abstract>Angular correlations between unidentified charged trigger particles and various species of charged associated particles (unidentified particles, pions, kaons, protons and antiprotons) are measured by the ALICE detector in p-Pb collisions at a nucleon--nucleon centre-of-mass energy of 5.02 TeV in the transverse-momentum range 0.3 &lt; p_T &lt; 4 GeV/c. The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range |eta_lab|&lt;0.8. Fourier coefficients are extracted from the long-range correlations projected onto the azimuthal angle difference and studied as a function of $\pt$ and in intervals of event multiplicity. In high-multiplicity events, the second-order coefficient for protons, v_2^p, is observed to be smaller than that for pions, v_2^pi, up to about p_T = 2 GeV/c. To reduce correlations due to jets, the per-trigger yield measured in low-multiplicity events is subtracted from that in high-multiplicity events. A two-ridge structure is obtained for all particle species. The Fourier decomposition of this structure shows that the second-order coefficients for pions and kaons are similar. The v_2^p is found to be smaller at low p_T and larger at higher p_T than v_2^pi, with a crossing occurring at about 2 GeV. This is qualitatively similar to the elliptic-flow pattern observed in heavy-ion collisions. A mass ordering effect at low transverse momenta is consistent with expectations from hydrodynamic model calculations assuming a collectively expanding system.</abstract><pub>Elsevier</pub><doi>10.1016/j.physletb.2013.08.024</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0001-7382-1609</orcidid><orcidid>https://orcid.org/0000-0001-5283-3520</orcidid><orcidid>https://orcid.org/0000-0002-8657-6742</orcidid><orcidid>https://orcid.org/0000-0001-7662-3878</orcidid><orcidid>https://orcid.org/0000-0001-8638-6300</orcidid><orcidid>https://orcid.org/0000-0002-5377-5163</orcidid><orcidid>https://orcid.org/0000-0002-9067-0803</orcidid><orcidid>https://orcid.org/0000-0003-3069-726X</orcidid><orcidid>https://orcid.org/0000-0002-2646-6189</orcidid><orcidid>https://orcid.org/0000-0003-1584-783X</orcidid><orcidid>https://orcid.org/0000-0001-5920-6271</orcidid><orcidid>https://orcid.org/0000-0003-0687-5580</orcidid><orcidid>https://orcid.org/0000-0001-5990-482X</orcidid></addata></record>
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subjects High Energy Physics - Experiment
Nuclear Experiment
Physics
title Long-range angular correlations of pi, K and p in p--Pb collisions at sqrt(s_NN) = 5.02 TeV
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