Measurement of the radiative K-e3 branching ratio

6533b7cffe1ef96bd1257cb1

RESEARCH PRODUCT

Measurement of the radiative K-e3 branching ratio

A Lai D Marras A Bevan Rs Dosanjh Tj Gershon B Hay Ge Kalmus C Lazzeroni Dj Munday E Olaiya Ma Parker To White Sa Wotton G Barr G Bocquet A Ceccucci T Cuhadar Donszelmann D Cundy G D'agostini N Doble V Falaleev L Gatignon A Gonidec B Gorini G Govi P Grafstrom W Kubischta A Lacourt A Norton S Palestini B Panzer Steindel H Taureg M Velasco H Wahl C Cheshkov P Hristov V Kekelidze L Litov D Madigojine N Molokanova Y Potrebenikov S Stoynev A Zinchenko I Knowles V Martin R Sacco A Walker Marco Contalbrigo Pietro Dalpiaz J Duclos Pl Frabetti Alberto Gianoli Mara Martini Ferruccio Carlo Petrucci Mauro Savrie'A Bizzeti M Calvetti G Collazuol G Graziani E Iacopini M Lenti F Martelli M Veltri Hg Becker K Eppard M Eppard H Fox A Kalter K Kleinknecht U Koch L Kopke Da Silva Pl P Marouelli I Pellmann A Peters B Renk Sa Schmidt V Schonharting Y Schue R Wanke A Winhart M Wittgen Jc Chollet L Fayard L Iconomidou Fayard J Ocariz G Unal I Wingerter Seez G Anzivino P Cenci E Imbergamo P Lubrano A Mestvirishvili A Nappi M Pepe M Piccini L Bertanza R Carosi R Casali C Cerri M Cirilli F Costantini R Fantechi S Giudici I Marinelli G Pierazzini M Sozzi Jb Cheze J Cogan M De Beer P Debu A Formica De Cassagnac Rg E Mazzucato B Peyaud R Turlay B Vallage M Holder A Maier M Ziolkowski R Arcidiacono C Biino N Cartiglia F Marchetto E Menichetti N Pastrone J Nassalski E Rondio M Szleper W Wislicki S Wronka H Dibon G Fischer M Jeitler M Markytan I Mikulec G Neuhofer M Pernicka A Taurok L Widhalm Ca Na48 Collaboration

subject

Nuclear and High Energy Physics Chiral perturbation theory Photon Hadron FOS: Physical sciences kaon decay; NEUTRAL KAON; branching ratio 7. Clean energy 01 natural sciences NEUTRAL KAON High Energy Physics - Experiment Nuclear physics mesoni K High Energy Physics - Experiment (hep-ex)0103 physical sciences Radiative transfer [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]radiative kaon decays 010306 general physics mesoni K; decadimenti radiativi Physics 010308 nuclear & particles physics Branching fraction K13 DECAYS Bremsstrahlung kaon decay Amplitude decadimenti radiativi branching ratio Atomic physics Particle Physics - Experiment

description

We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based on observation of 19 000 Ke3gamma and 5.6 x 10^6 Ke3 decays. The value of the branching ratio is Br(Ke3gamma, Egamma^*>30 MeV,theta(e,gamma)^*>20^o)/Br(Ke3)= (0.964+-0.008+0.011-0.009)%. This result agrees with theoretical predictions but is at variance with a recently published result.

year	journal	country	edition	language
2005-01-01

10.1016/j.physletb.2004.11.056 http://hdl.handle.net/2318/110041