Eur. Phys. J. A (2008) 38: 125-127
https://doi.org/10.1140/epja/i2008-10659-5

Letter

Measurement of the η mass at KLOE^⋆

Università degli Studi di Roma Tre, INFN sezione di Roma Tre, Roma, Italy

^* e-mail: dimicco@fis.uniroma3.it

Received: 11 April 2008
Revised: 6 August 2008
Published online: 7 October 2008

Abstract

In this report the measurement of the η mass is presented. The analysis has been performed on 450pb^-1 of data collected in the years 2001 and 2002. The measured value is m _η = (547.874±0.07_stat±0.029_syst) MeV.