Large- Nc analysis of magnetic and axial two-nucleon currents in pionless effective field theory
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DOI: 10.1103/physrevc.101.055505
Abstract: We analyze magnetic and axial two-nucleon contact terms in a combined large-$N_c$ and pionless effective field theory expansion. These terms play important roles in correctly describing, e.g., the low-energy cross section of radiative neutron capture… read more here.
Keywords: axial two; magnetic axial; pionless effective; effective field ... See more keywords
Nuclear matrix elements for the 0νββ(0+→2+) decay of Ge76 within the two-nucleon mechanism
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DOI: 10.1103/physrevc.103.045501
Abstract: In this paper, we present the first beyond closure calculation for the neutrinoless double-$\ensuremath{\beta}$ decay of $^{76}\mathrm{Ge}$ to the first ${2}^{+}$ states of $^{76}\mathrm{Se}$ within the two nucleon mechanism. The isospin symmetry restored quasiparticle random-phase… read more here.
Keywords: within two; nuclear matrix; two nucleon; matrix elements ... See more keywords
Effective operators in two-nucleon systems
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DOI: 10.1103/physrevc.98.065502
Abstract: Effective Hamiltonians and effective electroweak operators are calculated with the Okubo-Lee-Suzuki formalism for two-nucleon systems. Working within a harmonic oscillator basis, first without and then with a confining harmonic oscillator trap, we demonstrate the effects… read more here.
Keywords: renormalization effects; nucleon systems; basis spaces; two nucleon ... See more keywords