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NLO thermal dilepton rate at non-zero momentum

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arxiv 1310.0164 v1 pith:Z3JEQFXD submitted 2013-10-01 hep-ph hep-lat

M. Laine This is my paper · ORCID
classification hep-phhep-lat
keywords dileptonfunctionmomentumnon-zeroorderpreviousratespectral
verification ladder T0 review T1 audit T2 compute T3 formal
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The vector channel spectral function and the dilepton production rate from a QCD plasma at a temperature above a few hundred MeV are evaluated up to next-to-leading order (NLO) including their dependence on a non-zero momentum with respect to the heat bath. The invariant mass of the virtual photon is taken to be in the range K^2 ~ (pi T)^2 ~ (1 GeV)^2, generalizing previous NLO results valid for K^2 >> (pi T)^2. In the opposite regime 0 < K^2 << (pi T)^2 the loop expansion breaks down, but agrees nevertheless in order of magnitude with a previous result obtained through resummations. Ways to test the vector spectral function through comparisons with imaginary-time correlators measured on the lattice are discussed.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Thermal dilepton polarization and dynamics of the QCD plasma in relativistic heavy-ion collisions

    nucl-th 2024-12 conditional novelty 7.0 of 10

    Using next-to-leading-order rates, the paper predicts that dilepton polarization changes sign and magnitude in low and intermediate invariant-mass ranges, making it a sensitive probe of gluonic processes and pre-equil...

  2. Thermal Dilepton Polarization under Rotation or Magnetic Field in Heavy-ion Collisions

    hep-ph 2026-07 conditional novelty 6.5 of 10

    Vorticity and magnetic fields induce characteristically different dilepton polarization spectra via modified quark propagators, with λ_θ decreasing monotonically under rotation but oscillating under magnetic fields du...

  3. The polarization of thermal dileptons emitted in high-energy heavy-ion collisions

    nucl-th 2026-05 unverdicted novelty 5.0 of 10

    Thermal dilepton polarization in LHC heavy-ion collisions is sensitive to QGP in-medium properties, with a one-to-one mapping derived between dielectron and dimuon channels.

  4. Energy and momentum dependence of the soft-axion interaction rate

    hep-ph 2026-01 unverdicted novelty 5.0 of 10

    HTL computation of soft axion rates shows interpolation between k=0 and k≈ω, raising ΔN_eff from ~0.03 to ~0.04 for light QCD axions at fa=4×10^8 GeV.

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