Abstract.
Recent results on low mass dilepton measurements from the PHENIX experiment are reported. Invariant mass spectra of \(\phi\rightarrow e^ + e^-\) are measured for the first time in Au-Au collisions at \(\sqrt{s_{NN}} = 200\) GeV in Run2. In d-Au collisions, the yields and M T slopes of both \(\phi\rightarrow e^ + e^-\) and \(\phi \rightarrow K^ + K^-\) are measured. Both results are consistent with each other within errors. In the future, a Hadron Blind Detector will be installed in PHENIX which will enhance our capabilities of rejecting external photon conversions and Dalitz pairs, that will result in a significant reduction of the large combinatorial background.
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Ozawa, K., on behalf of the PHENIX Collaboration. Low mass dilepton production at RHIC energies. Eur. Phys. J. C 43, 421–426 (2005). https://doi.org/10.1140/epjc/s2005-02212-3
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DOI: https://doi.org/10.1140/epjc/s2005-02212-3