Spin-orbit corrections of order $m{\alpha }^6$ to the fine structure of $(37,35)$ state in ${}^4{He}^{+}\bar{p}$ atom

Abstract

Precise numerical calculation of radiofrequency intervals between hyperfine sublevels of the $(37,35)$ state of the antiprotonic helium-4 atom is presented. Theoretical consideration includes the QED corrections of order $m{\alpha }^6$ to the electron spin-orbit interaction. The effective Hamiltonian is derived using the formalism of the nonrelativistic quantum electrodynamics (NRQED).

5 pages, 1 figure, 2 tables, submitted to PRA

References in corpus (3)

• Antiproton magnetic moment determined from the HFS of antiprotonic helium
• Relativistic corrections of mα^6(m/M) order to the hyperfine structure of the H_2^+ molecular ion
• Improved Study of the Antiprotonic Helium Hyperfine Structure

Cited by in corpus (3)

• Physics at CERN's Antiproton Decelerator
• Hyperfine structure in the H${}_2^{+}$ and HD${}^{+}$ molecular ions at $m{\alpha }^6$ order
• One-loop vacuum polarization at m$\alpha$7 and higher orders for three-body molecular systems