Final-state interaction in spin asymmetry and GDH sum rule for incoherent pion production on the deuteron
نویسندگان
چکیده
منابع مشابه
Final state interaction in spin asymmetry and GDH sum rule for incoherent pion production on the deuteron
The contribution of incoherent single pion photoproduction to the spin response of the deuteron, i.e., the asymmetry of the total photoabsorption cross section with respect to parallel and antiparallel spins of photon and deuteron, is calculated over the region of the ∆-resonance with inclusion of final state NNand πN-rescattering. Sizeable effects, mainly from NN-rescattering, are found leadin...
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An explicit evaluation of the spin asymmetry of the deuteron and the associated GDH sum rule is presented which includes disintegration, single and double pion and eta production. For the GDH integral a large cancellation is found between the disintegration channel and the meson production channels. Furthermore, first results for the contribution of the disintegration channel to the generalized...
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As first topic, the GDH sume rule is discussed in the context of a more general class of sum rules associated with the various contributions to the total photoabsorption cross section for target and beam polarization. Then I address the question of whether the GDH sum rule for the neutron can be determined from the one for the deuteron. It appears that this will not be possible in a simple mann...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2003
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2003-10023-5