The KLOE experiment at DAΦNE has collected data for an integrated luminosity of ∼ 1.3 fb-1 from e+e- collisions at center-of-mass energy around the φ-meson peak, W ∼ 1.02 GeV. A selection of results obtained from a sample of 450 pb-1 of data acquired during year 2001 and 2002 is presented. Studying tagged K S and KL-mesons produced in the reaction e +e- → φ → KSKL we measured the branching ratio of the decay KS → πeν, the upper limit on the decay KS → π0π 0π0, and the main KL decay branching ratios. Exploiting the initial state radiation in the reaction e+e - → π+π-γ, we extracted the hadronic cross-section as a function of the squared center-of-mass energy s π of the ππ system, in the range 0.35 < sπ < 0.95 GeV2.
Recent results from the KLOE experiment at DAΦNE
Martini M;
2005-01-01
Abstract
The KLOE experiment at DAΦNE has collected data for an integrated luminosity of ∼ 1.3 fb-1 from e+e- collisions at center-of-mass energy around the φ-meson peak, W ∼ 1.02 GeV. A selection of results obtained from a sample of 450 pb-1 of data acquired during year 2001 and 2002 is presented. Studying tagged K S and KL-mesons produced in the reaction e +e- → φ → KSKL we measured the branching ratio of the decay KS → πeν, the upper limit on the decay KS → π0π 0π0, and the main KL decay branching ratios. Exploiting the initial state radiation in the reaction e+e - → π+π-γ, we extracted the hadronic cross-section as a function of the squared center-of-mass energy s π of the ππ system, in the range 0.35 < sπ < 0.95 GeV2.| File | Dimensione | Formato | |
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