The few body program at CEBAF

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Bulletin of the American Physical Society

OSTI ID:374808

Ulmer, P E ^[1]

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1. Old Dominion Univ, Norfolk, VA (United States)

CEBAF, the Continuous Electron Beam Accelerator Facility, now nearing completion, will open a new window in the studies of few-body nuclei. The high energy (4 GeV) and intensity (200{mu}A) of the CEBAF beam will allow measurements at short distance scales where explicit quark-gluon degrees of freedom are expected to become evident. Further, CEBAF`s 100% duty factor will facilitate coincidence measurements where more than one final state particle is detected. CEBAF`s three experimental endstations (Halls A, B and C) contain complementary equipment for the investigation of few-body nuclei. Hall A with its two high resolution spectrometers (HRS) will provide the accuracy needed to separate various response functions arising from small amplitudes. These small amplitudes are obscured by dominant ones in cross section measurements and are often sensitive to inclusion of {open_quotes}non-standard{close_quotes} physics. The CEBAF large acceptance spectrometer (CLAS) in Hall B will allow the examination of decay channels involving multiparticle final states in the photo- and electro-disintegration of few-body systems. Finally, Hall C`s high momentum spectrometer (HMS) will allow extending the measurements to even shorter distance scales. The precise nature of the electromagnetic probe coupled with CEBAF`s kinematic flexibility promise to provide a quantitative understanding of few-body nuclei, an important step toward understanding how complex nuclei are built up from their fundamental constituents. The few-body physics program planned for CEBAF will be reviewed highlighting the body of approved experimental proposals.

• OSTI ID: 374808
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
ACCELERATOR FACILITIES
CEBAF ACCELERATOR
ELECTRON REACTIONS
EXPERIMENT PLANNING
LIGHT NUCLEI