Precise measurement of the decay ${K_{L}\toπ^0γγ}$

Details Precise measurement of the decay ${K_{L}\toπ^0γγ}$ Precise measurement of the decay ${K_{L}\toπ^0γγ}$

2002-05-06

arxiv.org/abs/hep-ex/0205010v1

Phys.Lett.B536:229-240,2002

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 7 figures and 2 tables. to be published in Phisics Letters B

Scientific paper

10.1016/S0370-2693(02)01863-4

The decay rate of $\klpgg$ has been measured with the NA48 detector at the CERN SPS. A total of 2558 $\klpgg$ candidates have been observed with a residual background of 3.2%. The branching ratio is determined to be $(1.36 \pm0.03_{(stat)} \pm0.03_{(syst)}\pm 0.03_{(norm)})\times10^{-6}$ and the vector coupling constant $a_v = -0.46 \pm0.03_{(stat)} \pm0.04_{(syst)}$. This result suggests that the CP-violation effects are dominating in the $\klpee$ decay. An upper limit for the $\klpgg$ decay rate in the two photon mass region $m_{\gamma\gamma}

Affiliated with

Also associated with

No associations

Rating

Precise measurement of the decay ${K_{L}\toπ^0γγ}$ 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 Precise measurement of the decay ${K_{L}\toπ^0γγ}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precise measurement of the decay ${K_{L}\toπ^0γγ}$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497182