WebbMeanwhile, a successful EFT without explicit pion exchange—Pionless EFT—has been formulated where renormalization is achieved order by order in a systematic expansion … Webb18 jan. 2024 · Pionless effective field theory is valid inside the cylinder whose base is the disk with radius Λ π / A < m π. The even-even spin-zero nuclei to which the chiral nuclear liquid treatment of this paper are applicable are shown here: Si 14 28 , Ca 20 40 , Ca 20 48 , Ni 28 60 , Zr 40 90 , and Pb 82 208 .
The proton–deuteron system in pionless EFT revisited
Webb11 mars 2024 · E ective eld theory (EFT) provides a powerful method to construct nuclear forces with a direct connection to QCD in a systematic, model-independent way [2{4]. For … Webb12 nov. 2010 · Abstract. We show some results concerning the renormalization group (RG) invariance of the nucleon-nucleon (NN) interaction in pionless effective field theory at … is fitbod app free
1 2 3 arXiv:2304.03327v1 [nucl-th] 6 Apr 2024
WebbIn pionless EFT, the internucleon potential is expanded in derivatives of delta functions, or powers of momenta in momentum space. An important task in EFT is to provide a power counting for observables. One can show [5–8] that in pionless EFT observables can be written as expansions in Q/M hi, where Q denotes the generic external momenta of Webb30 aug. 2024 · The formulation of a pionless EFT has been employed to calculate the cross-section and thermonuclear reaction rate of the \(^{3}\text{He}(\alpha ,\gamma )^{7}\text{Be}\) radiative capture reaction in the low energy region. As explained in our last works, we assumed \(^{3}\text{He}\) as a two-body structure consisting of deuteron and … Webb12 dec. 2024 · order in a pionless-EFT expansion that consist of contact terms between nucleons [36]. More specifically, we use the leading-order NN potential “o” of Ref. [31] that is designed to reproduce the npscattering lengths and effective radii in S/T = 0/1 and 1/0 channels. We assume the electromagnetic component of the NN potential to only ... ryzen 5 5600 motherboard