Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1992-09-01
Phys.Lett. B294 (1992) 369-374
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages (uses harvmac, figures available upon request) , UCSD/PTH 92-30, QUSTH-92-04
Scientific paper
10.1016/0370-2693(92)91535-H
We compute the polarisability of the nucleon to leading order in chiral perturbation theory. The contributions from kaons and baryon resonances as intermediate states are included in addition to the contribution from pions and nucleons that had been previously computed. The isoscalar operators are dominated by the infrared behaviour of pion loops giving rise to a $1/m_{\pi}$ coefficient. In contrast, the isovector operators are dominated by loops involving kaons, giving a $1/m_{k}$ coefficient, and further demonstrates that the strange quark is an important component of the nucleon. In addition, the inclusion of the decuplet of baryon resonances as intermediate states substantially modifies the result found from the octet baryons alone for the isoscalar polarisability.
Butler Malcolm N.
Savage Martin J.
No associations
LandOfFree
Electromagnetic Polarisability of the Nucleon in Chiral Perturbation Theory 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 Electromagnetic Polarisability of the Nucleon in Chiral Perturbation Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic Polarisability of the Nucleon in Chiral Perturbation Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-172889