Search for collectivity with azimuthal J/[psi]-hadron correlations in high multiplicity p-Pb collisions at √sNN=5.02 and 8.16 TeV
We present a measurement of azimuthal correlations between inclusive J/ψ and charged hadrons in p-Pb collisions recorded with the ALICE detector at the CERN LHC. The J/ψ are reconstructed at forward (p-going, 2.03<y<3.53) and backward (Pb-going, −4.46<y<−2.96) rapidity via their μ+μ− dec...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 March 2018
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| In: |
Physics letters
Year: 2018, Jahrgang: 780, Pages: 7-20 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2018.02.039 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1016/j.physletb.2018.02.039 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269318301412 
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| Verfasserangaben: | ALICE Collaboration* |
MARC
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| 245 | 1 | 0 | |a Search for collectivity with azimuthal J/[psi]-hadron correlations in high multiplicity p-Pb collisions at √sNN=5.02 and 8.16 TeV |c ALICE Collaboration* |
| 246 | 3 | 0 | |a sqrt ψ, root s(NN) |
| 246 | 3 | 3 | |a Search for collectivity with azimuthal J/psi-hadron correlations in high multiplicity p-Pb collisions at square root s NN = 5.02 and 8.16 TeV |
| 264 | 1 | |c 2 March 2018 | |
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| 500 | |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt | ||
| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, H. Beck, A. Borissov, M.C. Danisch, P. Glässel, J. Kim, S. Klewin, M.K. Köhler, L. Leardini, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und weitere] | ||
| 500 | |a Gesehen am 01.07.2019 | ||
| 520 | |a We present a measurement of azimuthal correlations between inclusive J/ψ and charged hadrons in p-Pb collisions recorded with the ALICE detector at the CERN LHC. The J/ψ are reconstructed at forward (p-going, 2.03<y<3.53) and backward (Pb-going, −4.46<y<−2.96) rapidity via their μ+μ− decay channel, while the charged hadrons are reconstructed at mid-rapidity (|η|<1.8). The correlations are expressed in terms of associated charged-hadron yields per J/ψ trigger. A rapidity gap of at least 1.5 units is required between the trigger J/ψ and the associated charged hadrons. Possible correlations due to collective effects are assessed by subtracting the associated per-trigger yields in the low-multiplicity collisions from those in the high-multiplicity collisions. After the subtraction, we observe a strong indication of remaining symmetric structures at Δφ≈0 and Δφ≈π, similar to those previously found in two-particle correlations at middle and forward rapidity. The corresponding second-order Fourier coefficient (v2) in the transverse momentum interval between 3 and 6 GeV/c is found to be positive with a significance of about 5σ. The obtained results are similar to the J/ψ v2 coefficients measured in Pb-Pb collisions at sNN=5.02 TeV, suggesting a common mechanism at the origin of the J/ψ v2. | ||
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