16–19 Oct 2012
INFN-LNF
Europe/Rome timezone

U boson search in phi dalitz decays with KLOE

16 Oct 2012, 16:30
35m
Aula B. Touschek, Bldg 36 (INFN-LNF)

Aula B. Touschek, Bldg 36

INFN-LNF

Via E. Fermi, 40 00044 Frascati Italy

Speaker

Ivano Sarra (LNF)

Description

We have searched for a new neutral gauge vector boson (U boson) in phi(1020) to eta e+e- decays, using about 1.8 fb-1 of data collected by the KLOE detector. The present analysis is based on an identication of the eta meson by its decays into three neutral pions, which provides a sample about twice larger than the one used in our previously published result. The limit on U boson production is improved accordingly.

Primary authors

Fabio Bossi (LNF) Ivano Sarra (LNF)

Presentation materials