Ground-state energy of pionic hydrogen to one loop

Details Ground-state energy of pionic hydrogen to one loop Ground-state energy of pionic hydrogen to one loop

2002-06-06

arxiv.org/abs/hep-ph/0206068v2

Eur.Phys.J.C26:13-34,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version accepted for publication in Eur. Phys. J. C; Eq. (B8) corrected, comment after Eq. (B11) changed, additional minor cha

Scientific paper

10.1007/s10052-002-1013-z

We investigate the ground-state energy of the pi- p atom (pionic hydrogen) in the framework of QCD+QED. In particular, we evaluate the strong energy-level shift. We perform the calculation at next-to-leading order in the low-energy expansion in the framework of the relevant effective field theory. The result provides a relation between the strong energy shift and the pion-nucleon S-wave scattering lengths - evaluated in pure QCD - at next-to-leading order in isospin breaking and in the low-energy expansion. We compare our result with available model calculations.

Affiliated with

Also associated with

No associations

Rating

Ground-state energy of pionic hydrogen to one loop does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ground-state energy of pionic hydrogen to one loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-state energy of pionic hydrogen to one loop will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-435776