High resolution spectroscopy of (lambda)(12)B by electroproduction.
Phys Rev Lett
; 99(5): 052501, 2007 Aug 03.
Article
em En
| MEDLINE
| ID: mdl-17930747
ABSTRACT
An experiment measuring electroproduction of hypernuclei has been performed in hall A at Jefferson Lab on a 12C target. In order to increase counting rates and provide unambiguous kaon identification two superconducting septum magnets and a ring imaging Cherenkov detector were added to the hall A standard equipment. An unprecedented energy resolution of less than 700 keV FWHM has been achieved. Thus, the observed (Lambda)(12)B spectrum shows for the first time identifiable strength in the core-excited region between the ground-state s-wave Lambda peak and the 11 MeV p-wave Lambda peak.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article