GeV from MARK II
نویسنده
چکیده
Results on hadronic final states in e'e' annihilation are reported. The data were collected with t he MARK II detector at the PEP storage ring at the Stanford Linear Accelerator Center, operating at a center-of-mass energy of ds=29 GeV The MARK II detector, a 4.5 KG solenoid with cylindrical drift chambers, surrounded by a liquid argon calorimeter, has events are selected by least 5 charged pat-tic in an-event. The tota 1 (or 15 Gev in the case been described in detail in ref. 2. Hadronic applying several cuts. There have to be at es, each with momentum greater than 100 NeV, visible energy has to be larger than 8 GeV of the energy correlation). The..vertex position has to coincide with the beam crossing point. The data used for this report correspond to a total integrated luminosity of about 15 pb-' collected in spring 1981.
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