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Compton scattering from the deuteron and extracted neutron polarizabilities
Department of Physics, University of Lund.
Department of Physics, University of Lund.
Department of Physics, University of Lund.
Department of Physics, University of Lund.
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2003 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 90, no 19Article in journal (Refereed) Published
Abstract [en]

Differential cross sections for Compton scattering from the deuteron were measured at MAX-Lab for incident photon energies of 55 and 66 MeV at nominal laboratory angles of 45degrees, 125degrees, and 135degrees. Tagged photons were scattered from liquid deuterium and detected in three NaI spectrometers. By comparing the data with theoretical calculations in the framework of a one-boson-exchange potential model, the sum and the difference of the isospin-averaged nucleon polarizabilities, alpha(N) + beta(N) = 17.4 +/- 3.7 and alpha(N) - beta(N) = 6.4 +/- 2.4 (in units of 10(-4) fm(3)), have been determined. By combining the latter with the global-averaged value for alpha(p) - beta(p) and using the predictions of the Baldin sum rule for the sum of the nucleon polarizabilities, we have obtained values for the neutron electric and magnetic polarizabilities of alpha(n) = 8.8 +/- 2.4(total) +/- 3.0(model) and beta(n) = 6.5 -/+ 2.4(total) -/+ 3.0(model), respectively.

Place, publisher, year, edition, pages
2003. Vol. 90, no 19
Keyword [en]
CHIRAL PERTURBATION-THEORY, ELECTROMAGNETIC POLARIZABILITIES, NUCLEON, POLARIZABILITIES, ELECTRIC POLARIZABILITY, CROSS-SECTIONS, O-16, THRESHOLD, PROTON, C-12, LEAD
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Physical Sciences Natural Sciences
Identifiers
URN: urn:nbn:se:hkr:diva-5435DOI: 10.1103/PhysRevLett.90.192501ISI: 000182928300007ISBN: 0031-9007 OAI: oai:DiVA.org:hkr-5435DiVA: diva2:280230
Available from: 2009-12-09 Created: 2009-12-09 Last updated: 2009-12-11Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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