Precision Kaon and Hadron Physics with KLOE

We describe the KLOE detector at DAϕNE, the Frascati ϕ, and its physics program. We begin with a brief description of the detector design and operation. Kaon physics is a major topic of investigation with KLOE thanks in part to the unique availability of pure K

_{S}

, K

_{L}

, K

^{±}

beams at a ϕ.We have measured all significant branching ratios of all kaon species, the K

_{L}

and K

^{±}

lifetimes and the K →π form factor’s t dependence. From the measurements we verify the validity of Cabibbo unitarity and lepton universality. We have studied properties of light scalar and pseudoscalar mesons with unprecedented accuracy. We have measured the e

^{+}

e

^{-}

→ π

^{+}

π

^{-}

cross-section necessary for computing the major part of the hadronic contribution to the muon anomaly. The methods employed in all the above measurements as well as the ϕ leptonic width, precision mass measurements and searches for forbidden or extremely rare decays of kaons and η-mesons are described. The impact of our results on flavor and hadron physics to date, as well as an outlook for further improvement in the near future, are discussed.

Note:

Review paper on KLOE and its physics results

12.15.Hh
13.66.Bc
11.30.Er
14.40.Aq
Charge conjugation, parity, time reversal, and other discrete symmetries
Determination of Kobayashi-Maskawa matrix elements
Hadron production in e+e- interactions
π, K, η mesons
KLOE
electron positron: annihilation

References(0)

Figures(0)

Loading ...