Hyperon-nucleon bound states and electroproduction of strangeness on light nuclei.

Conference · Tue Jun 25 04:00:00 EDT 2002

DOI:https://doi.org/10.1142/9789812791351_0053· OSTI ID:799793

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

The A(e,e{prime}K{sup +})Y X reaction has been investigated in Hall C at Jefferson Lab. 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 and {sup 4}He, C and Al targets. The missing mass spectra are fitted with Monte Carlo simulations including {Lambda}, {Sigma}{sup 0}, {Sigma}{sup -} hyperon production. 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: 799793
• Report Number(s): ANL/PHY/CP-108008
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
ELECTROPRODUCTION
HYPERONS
LIGHT NUCLEI
MESONS
MISSING-MASS SPECTRA
PRODUCTION
STRANGENESS
TARGETS