Neutron polarizabilities investigated by quasifree compton scattering from the deuteron
Physical review letters. Bd. 88. H. 16. College Park, MD: APS 2002 162301
Erscheinungsjahr: 2002
ISBN/ISSN: 1079-7114 ; 0031-9007
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1103/PhysRevLett.88.162301
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Inhaltszusammenfassung
Measuring Compton scattered photons and recoil neutrons in coincidence, quasifree Compton scattering by the neutron has been investigated at MAMI (Mainz) at theta(gamma)(lab) = 136degrees in an energy range from 200 to 400 MeV. From the data a polarizability difference of alpha(n) - beta(n) = 9.8 +/- 3.6(stat)(-1.1)(+2.1)(syst) +/- 2.2(model) in units of 10(-4) fm(3) has been determined. In combination with the polarizability sum alpha(n) + beta(n) = 15.2 +/- 0.5 deduced from photoabsorption ...Measuring Compton scattered photons and recoil neutrons in coincidence, quasifree Compton scattering by the neutron has been investigated at MAMI (Mainz) at theta(gamma)(lab) = 136degrees in an energy range from 200 to 400 MeV. From the data a polarizability difference of alpha(n) - beta(n) = 9.8 +/- 3.6(stat)(-1.1)(+2.1)(syst) +/- 2.2(model) in units of 10(-4) fm(3) has been determined. In combination with the polarizability sum alpha(n) + beta(n) = 15.2 +/- 0.5 deduced from photoabsorption data, the first precise results for the neutron electric and magnetic polarizabilities, alpha(n) = 12.5 +/- 1.8(stat)(-0.6)(+1.1)(syst) +/- 1.1(model) and beta(n) = 2.7 -/+ 1.8(stat)(-1.1)(+0.6)(syst) -/+ 1.1(model) , are obtained.» weiterlesen» einklappen
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Klassifikation
DFG Fachgebiet:
Teilchen, Kerne und Felder
DDC Sachgruppe:
Physik
