High-Resolution Spectroscopy of N-16(Lambda) [ superscript 16 subscript lambda N] by Electroproduction

• Main Authors: Gayou, Olivier (Contributor), Monaghan, Peter (Contributor), Qiang, Yi (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2011-08-17T21:03:25Z.
• Subjects: Article
• Online Access: Get fulltext

 An experimental study of the 16O(e,e'K+)Λ16N [superscript 16 O (e, e prime K superscript +) superscript 16 subscript lambda N] reaction has been performed at Jefferson Lab. A thin film of falling water was used as a target. This permitted a simultaneous measurement of the p(e,e'K+)Λ,Σ0 [p (e, e prime K superscript +) lambda, sigma superscript 0] exclusive reactions and a precise calibration of the energy scale. A ground-state binding energy of 13.76±0.16  MeV was obtained for Λ16N [superscript 16 subscript lambda N] with better precision than previous measurements on the mirror hypernucleus Λ16O [superscript 16 subscript lambda O]. Precise energies have been determined for peaks arising from a Λ [lambda]in s and p orbits coupled to the p1/2 [p subscript 1/2] and p3/2 [p subscript 3/2] hole states of the 15N [superscript 15 N] core nucleus