Electron Induced Hypernuclear Spectroscopy. Results in Hall A at Jefferson Lab

Journal Article · Thu Dec 17 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293948· OSTI ID:21325770

Iodice, M ^[1]; Cisbani, E; Cusanno, F; Garibaldi, F; Frullani, S; Urciuoli, G M ^[2]; De Leo, R; Lagamba, L; Marrone, S ^[3]; Jager, C W. de; Feuerbach, R; Higinbotham, D W; LeRose, J J; Reitz, B ^[4]; Acha, A; Markowitz, P ^[5]; Bydzovsky, P; Sotona, M ^[6]; Chang, C C ^[7]; Millener, D J ^[8]

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1. INFN Roma Tre (Italy)
2. INFN Roma, and ISS, Roma (Italy)
3. INFN Bari (Italy)
4. Jefferson Lab (United States)
5. Florida International University, Miami, FL (United States)
6. Nuclear Physiscs Institute, Rez (Czech Republic)
7. University of Maryland, College Park Mariland (United States)
8. Brookhaven National Laboratory, Upton, New York (United States)

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 {sup 12}C, {sup 16}O and {sup 9}Be 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 {sub {lambda}}{sup 16}N 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.

• OSTI ID: 21325770
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1182; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 9 TARGET
BINDING ENERGY
CARBON 12 TARGET
CEBAF ACCELERATOR
CROSS SECTIONS
ELECTRON BEAMS
ELECTRON REACTIONS
ELECTROPRODUCTION
ENERGY RESOLUTION
EXCITED STATES
HYPERNUCLEI
MEV RANGE
MISSING-MASS SPECTRA
NITROGEN 16
NUCLEAR STRUCTURE
OXYGEN 16 TARGET