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First measurement of J/ψ anisotropy by PHENIX experiment at RHIC

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Abstract

Understanding the J/ψ suppression and possible recombination mechanisms at RHIC is one of the outstanding challenges for theorists and experimentalists. Recent results provided by PHENIX showed a stronger suppression at forward rapidity, while at mid-rapidity the suppression is similar to lower energy collision experiments. A large sample of Au + Au collisions at \( \sqrt {s_{NN} } \) = 200 GeV was collected in 2007 with the PHENIX experiment at RHIC. Using this sample, J/ψs were identified in the di-electron decay channel. In order to probe the charm coalescence as an additional J/ψ production mechanism at RHIC, we studied the first determination of its v 2 elliptic flow parameter at mid-rapidity.

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Authors and Affiliations

  1. Iowa State University, Iowa, USA

    Cesar Luiz da Silva

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  1. Cesar Luiz da Silva
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Correspondence to Cesar Luiz da Silva.

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for the PHENIX Collaboration

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da Silva, C.L. First measurement of J/ψ anisotropy by PHENIX experiment at RHIC. Indian J Phys 85, 15–19 (2011). https://doi.org/10.1007/s12648-011-0011-0

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  • DOI: https://doi.org/10.1007/s12648-011-0011-0

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