The DMO sum rule revisited
نویسندگان
چکیده
منابع مشابه
A Lattice Investigation of the DMO Sum Rule
An evaluation of charged pion polarizability using correlation functions measured on a 16 3 × 24 lattice in the context of the Das, Mathur, Okubo (DMO) sum rule is carried out. The calculation is limited to the so-called intrinsic part of the polarizability. This contribution, equivalent to a Eu-clidean time integral over vector and axial vector momentum-differentiated propagators, is evaluated...
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The Fubini-Furlan-Rossetti sum rule for pion photoproduction on the nucleon is evaluated by dispersion relations at constant t, and the corrections to the sum rule due to the finite pion mass are calculated. Near threshold these corrections turn out to be large due to pion-loop effects, whereas the sum rule value is closely approached if the dispersion integrals are evaluated for sub-threshold ...
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In the conventional QCD sum rule calculation for the πNN coupling beyond the soft-pion limit, there are three distinct Dirac structures, each of which can be used to construct separate sum rule. We point out subtleties in the previous sum rule results, based on one of the Dirac structure, associated with using either the PV or the PS coupling schemes in modeling the phenomenological side. We pr...
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The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be...
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1. The efflux of IT-labelled 5,5-dimethyl-2,4oxazolidinedione (DMO) from the myocardium of the rabbit has been studied. The perfusate pH was 7.38. 2. The effluent curve is complex and appears to be the resultant of movement between at least four compartments. 3. The first two probably represent intravascular and extracellular compartments; the last two have smaller rate constants and may repres...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)01579-7