Measurement of the pionium lifetime

We report the progress in the measurement of the pionium lifetime by the DIRAC Collaboration at CERN (PS212). Based on data collected in 2001-2003 on Ni targets we have achieved the precision of 11% in the measurement of the pionium lifetime, which corresponds to the measurement of S-wave pion-pion...

Descripción completa

Detalles Bibliográficos
Autor principal: Zhabitsky, M
Lenguaje:eng
Publicado: 2008
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1129727
Descripción
Sumario:We report the progress in the measurement of the pionium lifetime by the DIRAC Collaboration at CERN (PS212). Based on data collected in 2001-2003 on Ni targets we have achieved the precision of 11% in the measurement of the pionium lifetime, which corresponds to the measurement of S-wave pion-pion scattering lengths difference |a0-a2| with the accuracy of 6%.

Ejemplares similares