Electroproduction of strangeness on light nuclei.

Conference · Thu May 16 04:00:00 EDT 2002

OSTI ID:795025

Dohrmann, F; Abbott, D; Ahmidouch, A; Ambrozewicz, P; Armstrong, C S; Arrington, J; Bailey, K; Cummings, W J; Gao, H; Geesaman, D F; Hafidi, K; Hansen, J O; Jackson, H E; Mueller, B; O'Neill, T G; Potterveld, D H; Reimer, P E; Reinhold, J; Zeidman, B

The A(e,e{prime} K{sup +})YX reaction has been investigated in Hall C at Jefferson Laboratory for 6 different targets. Data were taken for Q{sup 2} {approx} 0.35 and 0.5 GeV{sup 2} at a beam energy of 3.245 GeV for {sup 1}H, {sup 2}H, {sup 3}He, {sup 4}He, C and Al targets. The missing mass spectra are fitted with Monte Carlo simulations taking into account the production of {Lambda} and {Sigma}{sup 0} hyperon production off the proton, and {Sigma}{sup -} off the neutron. Models for quasifree production are compared to the data, excess yields close to threshold are attributed to FSI. Evidence for {Lambda}-hypernuclear bound states is seen for {sup 3,4}He targets.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 795025
• Report Number(s): ANL/AOD/CP-107692
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BARYONS
BOUND STATE
CEBAF ACCELERATOR
ELECTROPRODUCTION
HYPERONS
LIGHT NUCLEI
MISSING-MASS SPECTRA
PRODUCTION
STRANGENESS
TARGETS