PowerPoint

The phi meson in nuclear matter - recent result from theory -

Talk at ECT* Workshop New perspectives on Photons and Dileptons in Ultrarelativistic Heavy-Ion Collisions at RHIC and LHC 4. December, 2015P. Gubler and K. Ohtani, Phys. Rev. D 90, 094002 (2014). P. Gubler and W. Weise, Phys. Lett. B 751, 396 (2015). Collaborators:Keisuke Ohtani (Tokyo Tech) Wolfram Weise (ECT*, TUM)Introduction mesonm = 1019 MeV

= 4.3 MeVObject of study:

Interest:

Previous developmentsThe E325 Experiment (KEK)Slowly moving mesons are produced in 12 GeV p+A reactions and are measured through di-leptons.peepeeffoutside decayinside decayNo effect (only vacuum) Di-lepton spectrum reflects the modified -meson

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