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Dive into the research topics where Gregory S. Adkins is active.

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Featured researches published by Gregory S. Adkins.


Physics Letters B | 1984

Stabilization of Chiral Solitons via Vector Mesons

Gregory S. Adkins; Chiara R. Nappi

We introduce vector mesons in a chiral lagrangian. The ω meson stabilizes the chiral solitons. We compute the static properties of baryons in this model.


Physical Review D | 2007

Orbital precession due to central-force perturbations

Gregory S. Adkins; Jordan McDonnell

We calculate the perifocus precession of Keplerian orbits under the influence of arbitrary central-force perturbations. Our result is in the form of a one-dimensional integral that is straightforward to evaluate numerically. We demonstrate the effectiveness of our formula for the case of the Yukawa potential. We obtain analytic results for potentials of the form


Nuclear Physics | 1985

Model Independent Relations for Baryons as Solitons in Mesonic Theories

Gregory S. Adkins; Chiara R. Nappi

V(r)=\ensuremath{\alpha}{r}^{n}


Physical Review Letters | 2000

Order alpha(2) corrections to the decay rate of orthopositronium

Gregory S. Adkins; Richard N. Fell; J. Sapirstein

and


Physical Review A | 2014

Positronium hyperfine splitting at order

Gregory S. Adkins; Richard N. Fell

V(r)=\ensuremath{\alpha}\mathrm{ln}(r/\ensuremath{\lambda})


Physical Review A | 2014

m \alpha^7

Gregory S. Adkins; Christian Parsons; M. D. Salinger; Ruihan Wang; Richard N. Fell

in terms of the hypergeometric function


Physical Review D | 2012

: light-by-light scattering in the two-photon-exchange channel

Theodore J. Yoder; Gregory S. Adkins

_{2}F_{1}(\frac{1}{2}\ensuremath{-}\frac{n}{2},1\ensuremath{-}\frac{n}{2};2;{e}^{2})


American Journal of Physics | 2008

Positronium energy levels at ordermα7: Light-by-light scattering in the two-photon-annihilation channel

Gregory S. Adkins

, where


Relativistic, quantum electrodynamics, and weak interaction effects in atoms | 2008

Higher order corrections to the hydrogen spectrum from the Standard-Model Extension

Gregory S. Adkins

e


Physical Review A | 2006

Dirac–Coulomb energy levels and expectation values

Gregory S. Adkins; J. Sapirstein

is the eccentricity. Our results reproduce the known general relativistic (

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J. Sapirstein

University of Notre Dame

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