Author/Authors :
Higinbotham، نويسنده , , D.W. and Alarcon، نويسنده , , R. and Bauer، نويسنده , , Th. and Boersma، نويسنده , , D.J. and van den Brand، نويسنده , , J.F.J. and Bulten، نويسنده , , H.J. and van Buuren، نويسنده , , L.D. and Ent، نويسنده , , R. and Ferro-Luzzi، نويسنده , , M. and Geurts، نويسنده , , D. and Harvey، نويسنده , , M. and Heimberg، نويسنده , , P. and Norum، نويسنده , , B.E. and Passchier، نويسنده , , I. and Poolman، نويسنده ,
Abstract :
The ultra-thin gas targets used in storage ring internal target experiments allow low energy, heavy nuclei to emerge from the target region. A detector capable of analyzing these nuclei provides unique access to many nuclear reactions. We report here the first use of such a detector in conjunction with a polarized 3He internal target and a polarized electron beam. The results of using the detector as a luminosity monitor and as a polarimeter to measure the product of beam and target polarizations are presented. The ability to study coherent pion production via the reactions 3He→(e→, e′ 3He)π0 and 3He→(e→, e′ 3H)π+ is shown along with the ability of the detector to unambiguously separate the two- and three-body breakup channels of the reaction 3He→(e→, e′p).
