Neutron-deuteron scattering in the context of “pion-less” Effective Field Theory at very low energies is investigated to next-to-next-to-leading order. Convergence is improved by fitting the… (More)

The phase shifts for the higher partial waves (l ≥ 1) in the spin quartet and doublet channel of nd scattering at centre-of-mass energies up to 15 MeV are presented at nextto-leading and… (More)

The scalar and tensor polarizabilities of the deuteron are calculated using the recently developed effective field theory that describes nucleon-nucleon interactions. Leading and next-to-leading… (More)

We argue that many features of the structure of nuclei emerge from a strictly perturbative expansion around the unitarity limit, where the two-nucleon S waves have bound states at zero energy. In… (More)

The real and imaginary part of the quartet S wave phase shift in nd scattering (S3/2) for centre-of-mass momenta of up to 300 MeV (Ecm ≈ 70 MeV) is presented in effective field theory, using both… (More)

M.W. Ahmed, C.W. Arnold, T. Averett, J.P Chen J.R. Calarco, T. Clegg, D. Dutta, H. Gao (Spokesperson), C. Howell, M. Huang,H. Karwowski, G. Laskaris, A. Nathan, X. Qian, H.R. Weller, Y. Wu, Q. Ye,… (More)

We report on a chiral effective field theory calculation of Compton scattering from the proton. Our calculation includes pions, nucleons, and the Delta(1232) as explicit degrees of freedom. It uses… (More)

In this sketch, some recent developments in Compton scatter ing off the deuteron are reviewed. The strong energy-dependence of the scalar magne tic dipole polarisabilityβM1 turns out to be crucial to… (More)

Magnetically charged vortex defects are shown to arise in canonically quantised modified axial gauge QCD3+1 on a torus. This gauge – being an Abelian projection – keeps only the eigenphases as… (More)

We characterise a class of SU(2) gluonic field configurations in the modified axial gauge where a zero mode component vanishes at some space point but the global Haar measure remains non-zero. The… (More)