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Jet-dilepton conversion from an anisotropic quark-gluon plasma

  • Regular Article - Theoretical Physics
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Abstract.

We calculate the yield of lepton pair production from jet-plasma interaction where the plasma is anisotropic in momentum space. We compare both the M and \( p_T\) distributions from such process with the Drell-Yan contribution. It is observed that the invariant mass distribution of the lepton pair from such process dominates over the Drell-Yan one up to 3GeV at RHIC and up to 10GeV at LHC. Moreover, it is found that the contribution from the anisotropic quark gluon plasma (AQGP) increases marginally compared to the isotropic QGP. In case of \(p_{T}\)-distribution we observe an increase by a factor of 3-4 in the entire \(p_{T}\)-range at RHIC for AQGP. However, at LHC the change in the pT-distribution is marginal as compared to the isotropic case. It should be noted that we have used a two stage evolution scenario. First, the system evolves with pre-equilibrium state anisotropy up to \(\tau_{iso}\) (the isotropization time). After that the system evolves hydrodynamically.

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Authors and Affiliations

  1. Saha Institute of Nuclear Physics, 1/AF Bidhannagar, 700064, Kolkata, India

    Arghya Mukherjee, Mahatsab Mandal & Pradip Roy

Authors
  1. Arghya Mukherjee
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  2. Mahatsab Mandal
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  3. Pradip Roy
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Correspondence to Arghya Mukherjee.

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Communicated by H. Wittig

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Mukherjee, A., Mandal, M. & Roy, P. Jet-dilepton conversion from an anisotropic quark-gluon plasma. Eur. Phys. J. A 53, 81 (2017). https://doi.org/10.1140/epja/i2017-12265-x

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  • DOI: https://doi.org/10.1140/epja/i2017-12265-x

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