[Jlab-seminars] Physics Seminar Announcement

[Luci Collins]

*Physics Seminar
Friday, Aug. 7, 2009
11:00AM
CEBAF Center AUD.
Cookies & Coffee at 10:45AM*


"Hypernuclear Physics with the FINUDA Experiment"

Stefania Bufalino

INFN, Sezione di Torino and
Dip. di Fisica Sperimentale, Universita di Torino, Italy

The FINUDA (FIsica NUcleare at DAINE) detector, a large acceptance and 
high resolution magnetic spectrometer, is installed at one of the two 
interaction points of the DAINE(e+e-) collider.  The aim of FINUDA is 
the study of formation and decay of Lamdba hypernuclei which are 
produced by negative kaons at rest in a nucleus through the strangeness 
exchange reaction.  The FINUDA experiment from 2003 up to 2007 has 
collected data corresponding to an integrated luminosity of the collider 
of 1.2 fb-1 and thanks to the excellent performances of the apparatus, 
several different research topics were successfully investigated.

The main results on the 7Li and 12C spectroscopy will be presented 
togheter with the results obtained on the study of the hypernuclei weak 
decays.  In particular the results of the measurement of the proton 
spectra following the NonMesonic Weak Decay of Lamda 5He, 7Li, 9Be, 11B, 
12C, 13C, 15N, and 16O will be shown and discussed in the present 
experimental and theoretical framework.  The FINUDA experiment also 
performed a systematic study of the charged mesonic weak decay channel 
of p-shell -hypernuclei. The negatively charged pion spectra from 
mesonic decay were measured with magnetic analysis for the first time 
for Lambda 7Li, 9Be, 11B and 15N. It appears that the spectroscopy of 
from MWD can be considered as a new tool for the study of the structure 
of hypernuclei and for the determination of some relevant observables 
like the hypernuclei spinparity.  Finally the results on the study of K 
absorption on multinucleon systems with the FINUDA spectrometer will be 
presented. Besides giving insight into a rather poorly known mechanism, 
it is an effective tool to investigate the highly debated subject of 
antikaon nuclearbound system

Upcoming Seminar
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14 Aug., Sabine Jeschonnek (OSU)


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