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Measurement of helicity-dependent photoabsorption cross sections on the neutron from 815 to 1825 MeV

Författare:
  • H Dutz
  • K Helbing
  • J Krimmer
  • T Speckner
  • G Zeitler
  • J Ahrens
  • S Altieri
  • JRM Annand
  • G Anton
  • HJ Arends
  • R Beck
  • A Bock
  • C Bradtke
  • A Braghieri
  • W von Drachenfels
  • F Frommberger
  • M Godo
  • S Goertz
  • P Grabmayr
  • S Hasegawa
  • Kurt Hansen
  • J Harmsen
  • E Heid
  • W Hillert
  • H Holvoet
  • N Horikawa
  • T Iwata
  • L Van Hoorebeke
  • N d'Hose
  • P Jennewein
  • B Kiel
  • F Klein
  • R Kondratiev
  • M Lang
  • B Lannoy
  • R Leukel
  • V Lisin
  • D Menze
  • W Meyer
  • T Michel
  • J Naumann
  • A Panzeri
  • P Pedroni
  • T Pinelli
  • I Preobrajenski
  • E Radtke
  • G Reicherz
  • C Rohlof
  • T Rostomyan
  • M Sauer
  • B Schoch
  • M Schumacher
  • G Tamas
  • A Thomas
  • R van de Vyver
  • W Weihofen
  • F Zapadtka
Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: Physical Review Letters
Volym: 94
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

Helicity-dependent total photoabsorption cross sections on the deuteron have been measured for the first time at ELSA (Bonn) in the photon energy range from 815 to 1825 MeV. Circularly polarized tagged photons impinging on a longitudinally polarized LiD target have been used together with a highly efficient 4 pi detector system. The data around 1 GeV are not compatible with predictions from existing multipole analyses. From the measured energy range an experimental contribution to the GDH integral on the neutron of 33.9 +/- 5.5(stat)+/- 4.5(syst) mu b is extracted.

Disputation

Nyckelord

  • Physics and Astronomy

Övrigt

Published
Yes
  • ISSN: 1079-7114

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