First measurement of the rate K0L → πμνγ

6533b7d5fe1ef96bd1263da1

RESEARCH PRODUCT

First measurement of the rate K0L → πμνγ

C Siman J.p. Matheys R. Wilhelm G.d. Barr Julien Cogan B. Panzer-steindel Sandro Palestini R. Turlay Michael Ziolkowski J.b. Cheze P. Lubrano V. Fanti U. Koch W. Kubischta A. Michetti M. Calvetti C. Cerri D. J. Munday J. Scheidt R. Fantechi P. F. Dalpiaz B. Vallage M. Bender J. C. Chollet Cinzia Talamonti Augusto Ceccucci P.l. Frabetti P Maas S. Schanne Paolo Calafiura H.g. Becker S. Giudici H. Dibon O. Boyle A. Gianoli R. Casali P. Hristov T. O. White H. Parsons R. Carosi A. Lai M. Martini Alan W. Walker Andrea Formica S. Crépé M. Pepe Cristina Biino Ivan Mikulec L. Bertolotto F Rossi B. Peyaud Benedetto Gorini D. Schinzel L. Köpke H. Blümer G. Pierazzini P. Buchholz M. Savrie M. Sozzi E. Menichetti I Schwarze Lau Gatignon Mayda Velasco G. Tatichvili H. Taureg Manfred Jeitler M.g Setzu M. De Beer G Fischer A. Tkatchev G Oakland D. Coward F. Costantini T Beier Louis Fayard F. Marchetto Niels Doble I Kojevnikov A. Norton Konrad Kleinknecht P. Cenci L. Musa J. Duclos Fabrizio Petrucci G. Anzivino Aniello Nappi J. Schmidt A. Kalter P. Grafström G. Unal I. Potrebenikov Vladimir Kekelidze G. Govi J. Bremer Anton Taurok Andrea Bizzeti P. Debu Lydia Iconomidou-fayard E. Mazzucato M. Porcu Roberta Arcidiacono I. Augustin V. Marzulli S.f Takach A. Gonidec M. Holder M. Pernicka C. Ebersberger R.w. Moore Ken Peach B Hay M. Markytan M. Lenti O. Zeitnitz F. Leber O. Steinkamp G. Kesseler N.e Mc Kay G. Neuhofer Wolfgang Funk D.c. Cundy J. Ocariz B. Renk O. Vossnack I. Mannelli S. Luitz G. Bocquet Michael Andrew Parker V. Schönharting

subject

Physics Nuclear physics Nuclear and High Energy Physics Large Hadron Collider Branching fraction Photon detector NA48 experiment Calorimeter

description

Abstract In a preliminary version of the NA48 experiment at the CERN SPS, in which an iron-scintillator sandwich calorimeter was used as a photon detector, the ratio of K L → πμνγ and K L → πμν decays was measured. The branching ratio BR(K L →πμνγ, E γ ∗ ≥30 MeV )/(K L → πμν ) is found to be (2.08±0.17 +0.16 −0.21 )×10 −3 , where the first error is statistical and the second systematic. The result is in agreement with theoretical predictions.

year	journal	country	edition	language
1998-02-01

10.1016/s0370-2693(97)01432-9 https://doi.org/10.1016/s0370-2693(97)01432-9