Details

Autor(en) / Beteiligte

• Hornidge, DL
• Warkentin, BJ
• Igarashi, R
• Bergstrom, JC
• Hallin, EL
• Kolb, NR
• Pywell, RE
• Skopik, DM
• Vogt, JM
• Feldman, G

Titel

Elastic compton scattering from the deuteron and nucleon polarizabilities

Ist Teil von

• Physical review letters, 2000-03, Vol.84 (11), p.2334-2337

Ort / Verlag

United States

Erscheinungsjahr

2000

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• Cross sections for elastic Compton scattering from the deuteron were measured over the laboratory angles straight theta(gamma) = 35 degrees -150 degrees. Tagged photons in the laboratory energy range E(gamma) = 84-105 MeV were scattered from liquid deuterium and detected in the large-volume Boston University NaI spectrometer. Using the calculations of Levchuk and L'vov, along with the measured differential cross sections, the isospin-averaged nucleon polarizabilities in the deuteron were estimated. A best-fit value of (alpha;-beta;) = 2.6+/-1.8 was determined, constrained by dispersion sum rules. This is markedly different from the accepted value for the proton of (alpha;-beta;)(p) = 10.0+/-1.5+/-0.9.