Correlations induced by quantum statistics are sensitive to the spatiotemporal 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 andmixed charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at √ sNN = 2.76 TeV at the CERN Large Hadron Collider 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 23% ± 8%.

Two- and three-pion quantum statistics correlations in Pb-Pb collisions at √s_NN=2.76 TeV at the CERN Large Hadron Collider / Abelev, B., Adam, J., Adamová, D., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agocs, A.G., Agostinelli, A., Agrawal, N., Ahammed, Z., Ahmad, N., Masoodi, A.A., Ahmed, I., Ahn, S.U., Ahn, S.A., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., Aleksandrov, D., et al.. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - STAMPA. - 89:2(2014). [10.1103/PhysRevC.89.024911]

Two- and three-pion quantum statistics correlations in Pb-Pb collisions at √s_NN=2.76 TeV at the CERN Large Hadron Collider

Bruno, G. E.;
2014

Abstract

Correlations induced by quantum statistics are sensitive to the spatiotemporal 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 andmixed charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at √ sNN = 2.76 TeV at the CERN Large Hadron Collider 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 23% ± 8%.
2014
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.89.024911
Two- and three-pion quantum statistics correlations in Pb-Pb collisions at √s_NN=2.76 TeV at the CERN Large Hadron Collider / Abelev, B., Adam, J., Adamová, D., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agocs, A.G., Agostinelli, A., Agrawal, N., Ahammed, Z., Ahmad, N., Masoodi, A.A., Ahmed, I., Ahn, S.U., Ahn, S.A., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., Aleksandrov, D., et al.. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - STAMPA. - 89:2(2014). [10.1103/PhysRevC.89.024911]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/3439
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