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Prediction for the transverse momentum distribution of Drell-Yan dileptons at GSI-PANDA

O. Linnyk·K. Gallmeister·S. Leupold·U. Mosel
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Abstract

We predict the triple differential cross section of the Drell-Yan process (pbar p -> l^+l^-X) in the kinematical regimes relevant for the upcoming PANDA experiment, using a model that accounts for quark virtuality as well as primordial transverse momentum. We find a cross section magnitude of up to 10 nb in the low mass region. A measurement with 10% accuracy is desirable in order to constrain the partonic transverse momentum dispersion and the spectral function width within +-50 MeV and to study their evolution with M and sqrt(s).

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O. Linnyk, K. Gallmeister, S. Leupold, U. Mosel. 2006-03-17. Prediction for the transverse momentum distribution of Drell-Yan dileptons at GSI-PANDA. https://doi.org/10.1103/physrevd.73.037502

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