Dilepton production in nucleon-nucleon collisions revisited

Shyam, Radhey; Mosel, Ulrich

doi:10.1103/PhysRevC.79.035203

Title: Dilepton production in nucleon-nucleon collisions revisited

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.79.035203· OSTI ID:956229

Shyam, Radhey; Mosel, Ulrich

We present a fully relativistic and gauge invariant framework for calculating the cross sections of dilepton production in nucleon-nucleon ($NN$) collisions which is based on the meson-exchange approximation for the $NN$ scattering amplitudes. Prediction of our model are compared with those of other covariant models that have been used earlier to describe this reaction. Our results are also compared with those of the semiclassical models of this reaction which are employed in the transport model calculations of the dilepton production in nucleus-nucleus collisions. It is found that cross sections obtained within the semiclassical and quantum mechanical models differ noticeably from each other.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-060R23177

OSTI ID:: 956229

Report Number(s):: JLAB-THY-08-905; 0811.0739; DOE/OR/23177-0529; PRVCAN; TRN: US1004954

Journal Information:: Physical Review C, Journal Name: Physical Review C; ISSN 0556-2813

Country of Publication:: United States

Language:: English

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Title: Dilepton production in nucleon-nucleon collisions revisited

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