Electron Induced Hypernuclear Spectroscopy. Results in Hall A at Jefferson Lab
The characteristics of the Jefferson LAB electron beam, together with those of the experimental equipments, offer a unique opportunity to study hypernuclear spectroscopy via electromagnetic induced reactions. Results are presented on 12C, 16O and 9Be targets.In the hypernuclear missing-mass spectrum the experiment achieves sub-MeV energy resolution by exploiting the characteristics of the High Resolution Spectrometer pair and the beam quality available at JLab.These studies have provided, among other things, the first quantitative information on core-excited states in hypernuclei, as well as the precise determination of Lambda binding energy in the Lambda16N hypernucleus.For the experiment on oxygen, a waterfall target has been employed, allowing simultaneous measurement of the elementary reaction 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.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 980923
- Report Number(s):
- JLAB-PHY-09-1028; DOE/OR/23177-0883; JLAB-E-94-107; TRN: US1003977
- Journal Information:
- AIP Conf. Proc., Vol. 1182; Conference: 10TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS; CIPANP 2009: 10th Conference On The Intersections Of Particle And Nuclear Physics, 26-31 May 2009, San Diego, California
- Country of Publication:
- United States
- Language:
- English
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