Charge dependence of NN → dπ
نویسندگان
چکیده
منابع مشابه
Charge-dependence of the πNN coupling constant and charge-dependence of the NN interaction
The recent determination of the charged πNN coupling constant, gπ± , by the Uppsala Neutron Research Group implies that there may be considerable charge-splitting of the pion coupling constant. We investigate the consequences of this for the charge-independence breaking (CIB) of the 1S0 scattering length, ∆aCIB. We find that ∆aCIB depends sensitively on the difference between gπ± and the neutra...
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We are interested in the consistency between the cutoff, chiral symmetry, and the power counting. For this purpose, we apply the Wilsonian renormalization group (RG) to an operator and then decrease the Wilsonian cutoff. As an example, we study the s-wave pion production operator for NN → dπ, derived in chiral perturbation theory. We find that the renormalized part of the RG effective operator ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1997
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)00005-1