Measurement of the Decay KL -> pi0 e+ e- gamma
KTeV Collaboration: E. Abouzaid, M. Arenton, A.R. Barker, L., Bellantoni, E. Blucher, G.J. Bock, E. Cheu, R. Coleman, B. Cox, A.R. Erwin,, C.O. Escobar, A. Glazov, A. Golossanov, R.A. Gomes, P. Gouffon, Y.B. Hsiung,, D.A. Jensen, R. Kessler, Y.J. Kim, K. Kotera, A. Ledovskoy
TL;DR
This paper presents a new measurement of the branching ratio for the decay KL -> pi0 e+ e- gamma using the full KTeV dataset, providing a more precise value than previous results.
Contribution
The study provides the first measurement of the branching ratio for KL -> pi0 e+ e- gamma using the complete KTeV data set from 1997 to 2000.
Findings
Measured branching ratio: (1.62 +/- 0.14 (stat) +/- 0.09 (syst)) x 10^{-8}
Reconstructed 139 events with 14 background events
Supersedes previous KTeV measurement
Abstract
We report on a new measurement of the branching ratio B(KL -> pi0 e+ e- gamma) using the KTeV detector. This analysis uses the full KTeV data set collected from 1997 to 2000. We reconstruct 139 events over a background of 14, which results in B(KL -> pi0 e+ e- gamma) = (1.62 +/- 0.14 (stat) +/- 0.09 (syst)) x 10^{-8}. This result supersedes the earlier KTeV measurement of this branching ratio.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.