High Resolution Hypernuclear Spectroscopy at Jefferson Lab Hall A

Abstract

The characteristics of the Jefferson Lab electron beam, together with those of the experimental equipment, offer a unique opportunity to study hypernuclear spectroscopy via electromagnetic induced reactions. Experiment 94-107 started a systematic study on 1p-shell targets, ${}^{12}C$, ${}^{9}Be$ and ${}^{16}O$. For ${}^{12}C$ for the first time measurable strength in the core-excited part of the spectrum between the ground state and the p state was shown in ${}_{\Lambda }^{12}B$ spectrum. A high-quality ${}_{\Lambda }^{16}N$ spectrum was produced for the first time with sub-MeV energy resolution. A very precise $\Lambda$ binding energy value for ${}_{\Lambda }^{16}N$, calibrated against the elementary $(e,e^{\prime }{K}^{+})$ reaction on hydrogen, has also been obtained. ${}_{\Lambda }^{9}Li$ spectrum shows some disagreement in strength for the second and third doublet with respect to the theory.

6 pages, 5 figures, HYP2012 conference

References in corpus (21)

• Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons
• The gamma + p to K+ + Lambda and gamma + p to K+ + Sigma0 reactions at forward angles with photon energies from 1.5 to 2.4 GeV
• Differential cross section and recoil polarization measurements for the gamma p to K+ Lambda reaction using CLAS at Jefferson Lab
• First Results on 12Lambda-C production at DAPHNE
• Effects of the two-body and three-body hyperon-nucleon interactions in Λ-hypernuclei
• High resolution hypernuclear spectroscopy using the (e,e'K+) reaction
• High Resolution Spectroscopy of 16N_Lambda by Electroproduction
• High Resolution Spectroscopy of 12B_Lambda by Electroproduction
• Shell-model calculations for p-shell hypernuclei
• The experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of ${}_{\Lambda }^{12}\text{B}$ hypernuclei
• Gamma-Ray Spectroscopy of ${}_{\Lambda }^{16}$O and ${}_{\Lambda }^{15}$N Hypernuclei via the ${}^{16}$O$(K^{-},{\pi }^{-})$ reaction
• Bayesian inference of the resonance content of p(gamma,K^+)Lambda
• Hypernuclear Spectroscopy using the (e,e'K+) Reaction
• Analysis of the consistency of kaon photoproduction data with Lambda in the final state
• Spectroscopy of Lambda-9Li by electroproduction
• Cross sections and Rosenbluth separations in 1H(e, e'K+)Lambda up to Q2=2.35 GeV2
• Update of High Resolution (e,e'K^+) Hypernuclear Spectroscopy at Jefferson Lab's Hall A
• Kaon electromagnetic production: constraints set by new data
• Theory of the electromagnetic production of hyperons
• Structure of p-shell hypernuclei
• Normalization discrepancies in photoproduction reactions

Cited by in corpus (3)

• Strangeness in nuclear physics
• Effects of the two-body and three-body hyperon-nucleon interactions in Λ-hypernuclei
• Spectroscopy of Lambda-9Li by electroproduction