High-Resolution Hypernuclear Spectroscopy Electron Scattering at Jlab, Hall A
Hypernuclear spectroscopy via electromagnetic induced reactions is a valuable and powerful way to study hypernuclei, hadronic systems with non-zero strangeness content, providing an alternative to the hadron induced reactions mainly studied so far. Electron-induced hypernuclear spectroscopy has been studied in Hall A at Jefferson Lab on three nuclei, 12C, 16O, and 9Be with unprecedented resolution and with an improved particle identification system, using a RICH detector, in order to unambiguously identify kaons, thus allowing the measurement of high-quality, almost background-free, hypernuclear spectra. Two superconducting septum magnets were added to the existing apparatus in order to permit particle detection at very forward angle providing a reasonable counting rate. These studies have provided the first quantitative information on, for instance, core-excited states in hypernuclei. In the case of oxygen, a waterfall target has been employed allowing for the simultaneous measurement of hypernuclear production on oxygen and of elementary kaon-Lambda electro-production on protons: a crucial measurement to disentangle the contribution of the elementary reaction from the measured hypernuclear production cross section, yielding direct access to the nucleus-hypernucleus transition structure. Final results for 12C and 16O as well as preliminary results on 9Be will be presented.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1029203
- Report Number(s):
- JLAB-PHY-08-936; DOE/OR/23177-0812
- Country of Publication:
- United States
- Language:
- English
Similar Records
High-Resolution Hypernuclear Spectroscopy at JLab Hall A. Results and perspectives
Electron Induced Hypernuclear Spectroscopy. Results in Hall A at Jefferson Lab
Recent results on high resolution hypernuclear spectroscopy by electroproduction at Jefferson Lab, Hall A
Conference
·
Sat Jun 01 00:00:00 EDT 2013
·
OSTI ID:1992813
Electron Induced Hypernuclear Spectroscopy. Results in Hall A at Jefferson Lab
Conference
·
Mon Nov 30 23:00:00 EST 2009
· AIP Conf. Proc.
·
OSTI ID:980923
Recent results on high resolution hypernuclear spectroscopy by electroproduction at Jefferson Lab, Hall A
Conference
·
Wed Nov 30 23:00:00 EST 2005
·
OSTI ID:883854