S. Rosati

Parameter-free effective field theory calculation for the solar proton-fusion and hep processes

Spurred by the recent complete determination of the weak currents in two-nucleon systems up to

Critical comparison of experimental data and theoretical predictions for N-d scattering below the breakup threshold

\mathcal{O}{(Q}^{3})

Polarization observables in p - d scattering below 30-MeV

in heavy-baryon chiral perturbation theory, we carry out a parameter-free calculation of the threshold S factors for the solar

Study of bound and scattering states in three-nucleon systems

\mathrm{pp}

The three-nucleon bound state with realistic soft- and hard-core potentials

(proton-fusion) and hep processes in an effective field theory (EFT) that combines the merits of the standard nuclear physics method and systematic chiral expansion. The power of the EFT adopted here is that one can correlate in a unified formalism the weak-current matrix elements of two-, three-, and four-nucleon systems. Using the tritium

Three-nucleon bound states using realistic potential models

\ensuremath{\beta}

WEAK PROTON CAPTURE ON 3He

-decay rate as an input to fix the only unknown parameter in the theory, we can evaluate the threshold S factors with drastically improved precision; the results are

Calculation of the alpha-particle ground state within the hyperspherical harmonic basis

{S}_{\mathrm{pp}}(0)=3.94\ifmmode\times\else\texttimes\fi{}(1\ifmmode\pm\else\textpm\fi{}0.004)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}25}\mathrm{MeV}\mathrm{}\mathrm{b}

Benchmark calculation for proton-deuteron elastic scattering observables including the Coulomb interaction

and

Low energy n-{sup 3}H scattering: A novel testground for nuclear interactions

{S}_{\mathrm{hep}}(0)=(8.6\ifmmode\pm\else\textpm\fi{}1.3)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}20}\mathrm{keV}\mathrm{}\mathrm{b}.