Eur. Phys. J. A 24, s1.91-s1.94 (2005)
DOI: 10.1140/epjad/s2005-05-016-8

High resolution hypernuclear spectroscopy

F. Garibaldi

Viale Regina Elena 299, 00161, Rome, Italy

(Received 13 December 2004 / Published online 08 February 2005)

Abstract

Hypernuclear spectroscopy provides fundamental information for understanding the effective Λ-Nucleon interaction. Jefferson Laboratory experiment E94-107 was designed to perform high resolution hypernuclear spectroscopy by electroproduction of strangeness in four 1p-shell nuclei: ¹²C, ⁹Be, ¹⁶O, and ⁷Li. The first part of the experiment on ¹²C and ⁹Be has been performed in January and April-May 2004 in Hall A at Jefferson Lab. Significant modifications were made to the standard Hall A apparatus for this challenging experiment: two septum magnets and a RICH detector have been added to get reasonable counting rates and excellent particle identification, as required for the experiment. A description of the apparatus and the preliminary analysis results are presented here.

PACS: 21.80.+a - 25.30.Rw

The Author, on behalf of the Hall A Collaboration

© Società Italiana di Fisica, Springer-Verlag 2005