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New precise measurements of the Xi(0) -> Lambda gamma and Xi(0) -> Sigma(0)gamma decay asymmetries NA48/1 Collaboration

Research output: Contribution to journalArticle

  • J. R. Batley
  • G. E. Kalmus
  • C. Lazzeroni
  • D. J. Munday
  • M. Patel
  • M. W. Slater
  • S. A. Wotton
  • R. Arcidiacono
  • G. Bocquet
  • A. Ceccucci
  • D. Cundy
  • N. Doble
  • V. Falaleev
  • L. Gatignon
  • A. Gonidec
  • P. Grafstroem
  • W. Kubischta
  • I. Mikulec
  • A. Norton
  • B. Panzer-Steindel
  • P. Rubin
  • H. Wahl
  • E. Goudzovski
  • P. Hristov
  • V. Kekelidze
  • L. Litov
  • D. Madigozhin
  • N. Molokanova
  • Yu. Potrebenikov
  • S. Stoynev
  • A. Zinchenko
  • E. Monnier
  • E. Swallow
  • R. Winston
  • R. Sacco
  • W. Baldini
  • A. Gianoli
  • P. Dalpiaz
  • P. L. Frabetti
  • M. Martini
  • F. Petrucci
  • M. Savrie
  • M. Scarpa
  • M. Calvetti
  • G. Collazuol
  • E. Iacopini
  • G. Ruggiero
  • A. Bizzeti
  • M. Lenti
  • M. Veltri
  • M. Behler
  • K. Eppard
  • M. Eppard
  • A. Hirstius
  • K. Kleinknecht
  • U. Koch
  • P. Marouelli
  • L. Masetti
  • U. Moosbrugger
  • C. Morales Morales
  • A. Peters
  • R. Wanke
  • A. Winhart
  • A. Dabrowski
  • T. Fonseca Martin
  • M. Velasco
  • P. Cenci
  • P. Lubrano
  • M. Pepe
  • G. Anzivino
  • E. Imbergamo
  • G. Lamanna
  • A. Michetti
  • A. Nappi
  • M. C. Petrucci
  • M. Piccini
  • M. Valdata
  • C. Cerri
  • R. Fantechi
  • F. Costantini
  • L. Fiorini
  • S. Giudici
  • G. Pierazzini
  • M. Sozzi
  • I. Mannelli
  • C. Cheshkov
  • J. B. Cheze
  • M. De Beer
  • P. Debu
  • G. Gouge
  • G. Marel
  • E. Mazzucato
  • B. Peyaud
  • B. Vallage
  • M. Holder
  • A. Maier
  • M. Ziolkowski
  • C. Biino
  • N. Cartiglia
  • F. Marchetto
  • N. Pastrone
  • M. Clemencic
  • S. Goy Lopez
  • E. Menichetti
  • W. Wislicki
  • H. Dibon
  • M. Jeitler
  • M. Markytan
  • G. Neuhofer
  • L. Widhalm

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)241-248
Number of pages8
JournalPhysics Letters B
Volume693
Issue number3
DOIs
StatePublished - 4 Oct 2010

Abstract

The decay asymmetries of the weak radiative hyperon decays Xi(0) -> Lambda gamma and Xi(0) -> Sigma(0)gamma have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Xi(0) -> Lambda gamma and 15 000 Xi(0) -> Sigma(0)gamma decays, we obtain for the decay asymmetries alpha(Xi 0 -> Lambda gamma) = -0.704 +/- 0.019(stat) +/- 0.064(syst) and alpha(Xi 0 -> Sigma 0 gamma) = -0.729 +/- 0.030(stat) +/- 0.076(syst), respectively. These results are in good agreement with previous experiments, but more precise. (C) 2010 Elsevier B.V. All rights reserved.

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