Scattering length measurements from radiative pion capture and neutron-deuteron breakup

Conference · Tue Jul 01 00:00:00 EDT 1997

OSTI ID:658329

Gibson, B F ^[1]; Tornow, W ^[2]; Carman, T S ^[3]

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1. Los Alamos National Lab., NM (United States)
2. Duke Univ., Durham, NC (United States). Dept. of Physics
3. Lawrence Livermore National Lab., CA (United States); and others

The neutron-neutron and neutron-proton {sup 1}S{sub 0} scattering lengths a{sub nn} and a{sub np}, respectively, were determined simultaneously from the neutron-deuteron breakup reaction. Their comparison with the recommended values obtained from two body reactions gives a measure of the importance of three-nucleon force effects in the three-nucleon continuum. In order to check on the result obtained for a{sub nn} from the two-body {pi}{sup {minus}}-d capture reaction, a new measurement was performed at LANL. Preliminary results of the three experiments are given.

• Research Organization: Los Alamos National Lab., NM (United States); Duke Univ., Dept. of Physics, Durham, NC (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36; FG02-97ER41033
• OSTI ID: 658329
• Report Number(s): LA-UR--97-3796; CONF-970731--; ON: DE98001539
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BREAKUP REACTIONS
CAPTURE
DEUTERIUM TARGET
NEUTRONS
PION MINUS REACTIONS
PROTONS
SCATTERING LENGTHS
THREE-BODY PROBLEM
TWO-BODY PROBLEM