A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector

Details A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector

2007-10-22

arxiv.org/abs/0710.3993v5

Eur.Phys.J.C55:539-546,2008

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 7 figures

Scientific paper

10.1140/epjc/s10052-008-0634-2

We present a measurement of the ratio R = \Gamma(\keg;\Estar>30\mev,\qstar>20^\circ)$/$\Gamma(\kegf)$ and a first measurement of the direct emission contribution in KL semileptonic decays. The measurement is done at the DAFNE phi-factory selecting phi->KL KS decays with the KLOE detector. We use 328 pb^{-1}$ of data corresponding to about 3.5 million Ke3(g) events and about 9000 radiative events. Our result is R=(924 +/- 23(stat) +/-16(syst)10^{-5} for the branching ratio and X=-2.3 +/- 1.3(stat) +/- 1.4(syst) for the parameter describing direct emission.

Affiliated with

Also associated with

No associations

Rating

A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Study of the Radiative Ke3 Decay and Search for Direct Photon Emission with the KLOE Detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-357880