English

Connection between effective-range expansion and nuclear vertex constant or asymptotic normalization coefficient

Nuclear Theory 2015-05-27 v1

Abstract

Explicit relations between the effective-range expansion and the nuclear vertex constant or asymptotic normalization coefficient (ANC) for the virtual decay BA+aB\to A+a are derived for an arbitrary orbital momentum together with the corresponding location condition for the (A+aA+a) bound-state energy. They are valid both for the charged case and for the neutral case. Combining these relations with the standard effective-range function up to order six makes it possible to reduce to two the number of free effective-range parameters if an ANC value is known from experiment. Values for the scattering length, effective range, and form parameter are determined in this way for the 16^{16}O+pp, α+t\alpha+t and α+3\alpha+^3He collisions in partial waves where a bound state exists by using available ANCs deduced from experiments. The resulting effective-range expansions for these collisions are valid up to energies larger 5 MeV.

Keywords

Cite

@article{arxiv.1102.1528,
  title  = {Connection between effective-range expansion and nuclear vertex constant or asymptotic normalization coefficient},
  author = {R. Yarmukhamedov and D. Baye},
  journal= {arXiv preprint arXiv:1102.1528},
  year   = {2015}
}

Comments

17 pages, 6 figures

R2 v1 2026-06-21T17:23:08.981Z