295 citations · 3.4k across the 65 of their papers we have counts for
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Precision Calculation of n+p->d+gamma Cross Section for Big-Bang Nucleosynthesis
Gautam Rupak
An effective field theory calculation of the n+p->d+gamma cross section accurate to 1% for center of mass energy E up to ~1 MeV is presented. At these energies, which are relevant…
Improving the Convergence of NN Effective Field Theory
Daniel R. Phillips, Gautam Rupak, Martin J. Savage
We study a low-energy effective field theory (EFT) describing the NN system in which all exchanged particles are integrated out. We show that fitting the residue of the 3S1 amplitu…
Nucleon-Nucleon Scattering in Effective Field Theory
G. Rupak, N. Shoresh
I outline the effective field theory (EFT) calculation of nucleon-nucleon scattering which was recently carried out to next-to-next-to-leading order (NNLO) by Noam Shoresh and myse…
Isoscalar M1 and E2 Amplitudes in n+p -> d+gamma
Jiunn-Wei Chen, Gautam Rupak, Martin J. Savage
The low energy radiative capture process n+p -> d+gamma provides a sensitive probe of the two-nucleon system. The cross section for this process is dominated by the isovector M1 am…
NNLO Calculation of Two-Nucleon Scattering in EFT for a Two Yukawa Toy Model
Gautam Rupak, Noam Shoresh
The effective field theory (EFT) for a toy model of nucleons interacting via a short range and a long range Yukawa potential is presented. The scattering amplitude in the 1S0 chann…
Nucleon-Nucleon Effective Field Theory Without Pions
Jiunn-Wei Chen, Gautam Rupak, Martin J. Savage
Nuclear processes involving momenta much below the mass of the pion may be described by an effective field theory in which the pions do not appear as explicit degrees of freedom. T…