Published October 4, 2010 | Version v1
Journal article Metadata-only

New precise measurements of the Ξ0→Λγ and Ξ0→Σ0γ decay asymmetries

Creators

  • 1. Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE (United Kingdom)
  • 2. CERN, CH-1211 Geneve 23 (Switzerland)

Description

The decay asymmetries of the weak radiative hyperon decays Ξ0→Λγ and Ξ0→Σ0γ have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Ξ0→Λγ and 15 000 Ξ0→Σ0γ decays, we obtain for the decay asymmetries αΞ0→Λγ=-0.704±0.019stat±0.064syst and αΞ0→Σ0γ=-0.729±0.030stat±0.076syst, respectively. These results are in good agreement with previous experiments, but more precise.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2010.08.046

Additional details

Identifiers

DOI
10.1016/j.physletb.2010.08.046;
arXiv
arXiv:1009.3844v1;
PII
S0370-2693(10)01019-1;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
693
Journal Issue
3
Journal Page Range
p. 241-248
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42018192
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ACCURACY; ASYMMETRY; CERN; GAMMA DECAY; HYPERONS; MEASURING METHODS; RADIATIVE DECAY
Descriptors DEC
BARYONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERNATIONAL ORGANIZATIONS; NUCLEAR DECAY; PARTICLE DECAY; STRANGE PARTICLES

Optional Information

Copyright
Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.