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7 papers · 2 filters
Renormalizing Chiral Nuclear Forces: Triplet Channels
Bingwei Long, Chieh-Jen Yang
We discuss the subleading contact interactions, or counterterms, of the triplet channels of nucleon-nucleon scattering in the framework of chiral effective field theory, with S and…
Renormalizing Chiral Nuclear Forces: A Case Study of 3P0
Bingwei Long, C. -J. Yang
We discuss in this paper the subleading contact interactions, or counterterms, in the 3P0 channel of nucleon-nucleon scattering up to O(Q^3), where, already at leading order, Weinb…
Precision calculation of threshold pi^- d scattering, pi N scattering lengths, and the GMO sum rule
V. Baru, C. Hanhart, M. Hoferichter +3
We use chiral perturbation theory (ChPT) to calculate the scattering length with an accuracy of a few percent, including isospin-violating corrections both in the two- and…
Elastic Scattering of He based on a Cluster Description
S. P. Weppner, Ch. Elster
Elastic scattering observables (differential cross section and analyzing power) are calculated for the reaction He(p,p)He at projectile energies starting at 71 MeV/nucleon.…
Constraining the neutron-neutron scattering length with \eftnopi
Johannes Kirscher, Daniel R. Phillips
We compute a model-independent correlation between the difference of neutron-neutron and proton-proton scattering lengths |a(nn)-a^C(pp)| and the splitting in binding energies betw…
The three-boson system at next-to-leading order in an effective field theory for systems with a large scattering length
Chen Ji, Daniel R. Phillips, Lucas Platter
We analyze how corrections linear in the effective range, r_0, affect quantities in the three-body sector within an effective field theory for short-range interactions. We demonstr…