title: Nuclear structure aspects of neutrinoless double-β decay.
abstract: We decompose the neutrinoless double-β decay matrix elements into sums of products over the intermediate nucleus with two less nucleons. We find that the sum is dominated by the J(π)=0(+) ground state of this intermediate nucleus for both the light and heavy neutrino decay processes. This provides a new theoretical tool for comparing and improving nuclear structure models. It also provides the connection to two-nucleon transfer experiments.
authors.affiliation: Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA.
authors.forename: B A
authors.initials: BA
authors.lastname: Brown
authors.affiliation: Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA.
authors.forename: M
authors.initials: M
authors.lastname: Horoi
authors.affiliation: Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA and Department of Natural Sciences, LaGuardia Community College, The City University of New York, Long Island City, New York 11101, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Sen'kov