SEARCH FOR THE DECAY K-L-]3-GAMMA

Authors
BARR GD BUCHHOLZ P CUNDY D DOBLE N GATIGNON L GRAFSTROM P HAGELBERG R WAHL H PEACH KJ BEIER T BLUMER H COWARD D HEINZ R KLEINKNECHT K LEBER F RENK B ROHRER H SANDER HG SCHEERER F SCHEIDT J STAECK J WAGNER A AUGE E FOURNIER D ICONOMIDOUFAYARD L PERDEREAU O SCHAFFER AC SERIN L BERTANZA L CALAFIURA P CALVETTI M CAROSI R CASALI R CERRI C MANNELLI I MARZULLI VM NAPPI A PIERAZZINI GM HOLDER M KREUTZ A ROST M WERTHENBACH R
Citation
Gd. Barr et al., SEARCH FOR THE DECAY K-L-]3-GAMMA, Physics letters. Section B, 358(3-4), 1995, pp. 399-404
Citations number
7
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
358
Issue
3-4
Year of publication
1995
Pages
399 - 404
Database
ISI
SICI code
0370-2693(1995)358:3-4<399:SFTDK>2.0.ZU;2-V
Abstract
Data from the NA31 experiment at the CERN SPS have been used for the f irst search for the decay mode K-L --> 3 gamma. Seven events have been found with an estimated background of 6.7 +/- 1.5 events. The corresp onding upper limit for the branching ratio is Gamma(K-L +/- 3 gamma)/G amma(K-L --> all) = 2.4 x 10(-7) at the 90% confidence level, assuming a phase-space decay distribution.