Measurements of KL Branching Fractions and the CP Violation Parameter |eta+-|

et al; KTeV Collaboration: T. Alexopoulos

Measurements of KL Branching Fractions and the CP Violation Parameter |eta+-|

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv hep-ex/0406002 v1 pith:WQQ3C5ZB submitted 2004-06-01 hep-ex

KTeV Collaboration: T. Alexopoulos , et al This is my paper · ORCID

classification hep-ex

keywords measurementsbranchingfractionsparameterresultsviolationagreementaverages

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

read the original abstract

We present new measurements of the six largest branching fractions of the KL using data collected in 1997 by the KTeV experiment (E832) at Fermilab. The results are B(KL -> pi e nu) = 0.4067 +- 0.0011 B(KL -> pi mu nu) = 0.2701 +- 0.0009 B(KL -> pi+ pi- pi0) = 0.1252 +- 0.0007 B(KL -> pi0 pi0 pi0) = 0.1945 +- 0.0018 B(KL -> pi+ pi-) = (1.975 +- 0.012)E-3, and B(KL -> pi0 pi0) = (0.865 +- 0.010)E-3, where statistical and systematic errors have been summed in quadrature. We also determine the CP violation parameter |eta+-| to be (2.228 +- 0.010)E-3. Several of these results are not in good agreement with averages of previous measurements.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Semileptonic kaon decays and the precise determination of $V_{us}$
hep-ph 2025-02 unverdicted novelty 2.0 of 10

A hybrid chiral perturbation theory and lattice QCD treatment of radiative corrections to kaon semileptonic decays is claimed to reach 10^-4 precision, yielding V_us = 0.22308(39)(39)(3) and sharpening the Cabibbo ang...

Pith tools