Two and Three-Pion Quantum Statistics Correlations in Pb-Pb Collisions at sqrt(sNN)=2.76 TeV at the LHC

Correlations induced by quantum statistics are sensitive to the spatio-temporal extent as well as dynamics of particle emitting sources in heavy-ion collisions. In addition, such correlations can be used to search for the presence of a coherent component of pion production. Two and three-pion correl...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review. C 2014, Vol.89 (2)
Hauptverfasser:	Abelev, B., Aphecetche, Laurent, Baek, Y.W., Barret, V., Bastid, N., Batigne, Guillaume, Bergognon, A.A.E., Bregant, M., Cheshkov, C., Cheynis, B., Crochet, P., Delagrange, H., Ducroux, L., Dupieux, P., Erazmus, B., Estienne, Magali, Germain, Marie, Grossiord, J.-Y., Guilbaud, Maxime, Hippolyte, B., Ianigro, J.-C., Kuhn, C., Lardeux, A., Li, S., Lopez, X., Maire, A., Marchisone, M., Martinez Garcia, Gines, Martin Blanco, J., Mas, A., Massacrier, L., Molnar, L., Morreale, A., Pillot, Philippe, Porteboeuf-Houssais, S., Ronflette, L., Rosnet, P., Roy, C., Sanchez Castro, X., Schutz, Y., Shabetai, Alexandre, Stocco, Diego, Tieulent, R., Valencia Palomo, L., Vernet, R., Vulpescu, B., Wang, M., Zhang, X., Zoccarato, Y., Manso, F., Arbor, N., Conesa Balbastre, G., Faivre, J., Furget, C., Guernane, R., Kox, S., Real, J.S., Silvestre, C., Valle, Z. Conesa Del, Das, I., Espagnon, B., Hadjidakis, C., Lakomov, I., Suire, C., Takaki, J. D. Tapia, Baldisseri, Alberto, Borel, Herve, Castillo Castellanos, Javier, Charvet, Jean-Luc, Pereira da Costa, Hugo, Rakotozafindrabe, A
Format:	Artikel
Sprache:	eng
Schlagworte:	High Energy Physics - Experiment Nuclear Experiment Physics
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Correlations induced by quantum statistics are sensitive to the spatio-temporal extent as well as dynamics of particle emitting sources in heavy-ion collisions. In addition, such correlations can be used to search for the presence of a coherent component of pion production. Two and three-pion correlations of same and mixed-charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at sqrt(sNN)= 2.76 TeV at the LHC with ALICE. The genuine three-pion quantum statistics correlation is found to be suppressed relative to the two-pion correlation based on the assumption of fully chaotic pion emission.The suppression is observed to decrease with triplet momentum. The observed suppression at low triplet momentum may correspond to a coherent fraction in charged pion emission of 22% +- 12%.
ISSN:	2469-9985 0556-2813 2469-9993 1089-490X
DOI:	10.1103/PhysRevC.89.024911