Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector

Details Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector

2011-07-14

arxiv.org/abs/1107.2824v1

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

We report results of a search for narrow resonances in e+ e- annihilation at
center-of-mass energies between 1.85 and 3.1 GeV performed with the KEDR
detector at the VEPP-4M e+ e- collider. The upper limit on the leptonic width
of a narrow resonance Gamma(R -> ee) Br(R -> hadr) < 120 eV has been obtained
(at 90 % C.L.).

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