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

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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.

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8 p.

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Gibson, B. F.; Tornow, W. & Carman, T. S. July 1, 1997.

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  • Gibson, B. F. Los Alamos National Lab., NM (United States)
  • Tornow, W. Triangle Universities Nuclear Lab., Durham, NC (United States)
  • Carman, T. S. Lawrence Livermore National Lab., CA (United States)

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Description

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.

Physical Description

8 p.

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INIS; OSTI as DE98001539

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  • 15. international conference on few-body problems in physics (ICFBP-15), Groningen (Netherlands), 22-26 Jul 1997

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  • Other: DE98001539
  • Report No.: LA-UR--97-3796
  • Report No.: CONF-970731--
  • Grant Number: W-7405-ENG-36;FG02-97ER41033
  • Office of Scientific & Technical Information Report Number: 658329
  • Archival Resource Key: ark:/67531/metadc709496

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  • July 1, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 24, 2018, 11:26 a.m.

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Gibson, B. F.; Tornow, W. & Carman, T. S. Scattering length measurements from radiative pion capture and neutron-deuteron breakup, article, July 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc709496/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.