Measurement of the centrality and pseudorapidity dependence of the integrated elliptic flow in lead–lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
The integrated elliptic flow of charged particles produced in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, v<sub>2</sub>, was measured in the pseudorapidit...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/81229 |
| Aporte de: |
| Sumario: | The integrated elliptic flow of charged particles produced in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, v<sub>2</sub>, was measured in the pseudorapidity range |η| ≤ 2.5 with the event-plane method. In order to include tracks with very low transverse momentum p<sub>T</sub>, thus reducing the uncertainty in v<sub>2</sub> integrated over p<sub>T</sub>, a 1 μb<sub>−1</sub> data sample recorded without a magnetic field in the tracking detectors is used. The centrality dependence of the integrated v<sub>2</sub> is compared to other measurements obtained with higher p<sub>T</sub> thresholds. The integrated elliptic flow is weakly decreasing with |η|.
The integrated v<sub>2</sub> transformed to the rest frame of one of the colliding nuclei is compared to the lower-energy RHIC data. |
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