Abstract
The nucleon polarizabilities αE and βM are studied in the context of the perturbative chiral quark model. We demonstrate that meson-cloud effects are sufficient to explain the electric polarizability of the nucleon. Contributions of excited quark states to the paramagnetic polarizability are dominant and cancel the diamagnetic polarizability arising from the chiral field. The obtained results are compared to data and other theoretical predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 203-220 |
| Number of pages | 18 |
| Journal | Journal of Physics G: Nuclear and Particle Physics |
| Volume | 32 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Feb 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
Cite this
Nucleon polarizabilities in the perturbative chiral quark model. / Dong, Y.; Faessler, Amand; Gutsche, Th; Kuckei, J.; Lyubovitskij, V. E.; Pumsa-Ard, K.; Shen, P.
In: Journal of Physics G: Nuclear and Particle Physics, Vol. 32, No. 2, 01.02.2006, p. 203-220.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nucleon polarizabilities in the perturbative chiral quark model
AU - Dong, Y.
AU - Faessler, Amand
AU - Gutsche, Th
AU - Kuckei, J.
AU - Lyubovitskij, V. E.
AU - Pumsa-Ard, K.
AU - Shen, P.
PY - 2006/2/1
Y1 - 2006/2/1
N2 - The nucleon polarizabilities αE and βM are studied in the context of the perturbative chiral quark model. We demonstrate that meson-cloud effects are sufficient to explain the electric polarizability of the nucleon. Contributions of excited quark states to the paramagnetic polarizability are dominant and cancel the diamagnetic polarizability arising from the chiral field. The obtained results are compared to data and other theoretical predictions.
AB - The nucleon polarizabilities αE and βM are studied in the context of the perturbative chiral quark model. We demonstrate that meson-cloud effects are sufficient to explain the electric polarizability of the nucleon. Contributions of excited quark states to the paramagnetic polarizability are dominant and cancel the diamagnetic polarizability arising from the chiral field. The obtained results are compared to data and other theoretical predictions.
UR - http://www.scopus.com/inward/record.url?scp=33244481676&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33244481676&partnerID=8YFLogxK
U2 - 10.1088/0954-3899/32/2/011
DO - 10.1088/0954-3899/32/2/011
M3 - Article
VL - 32
SP - 203
EP - 220
JO - Journal of Physics G: Nuclear and Particle Physics
JF - Journal of Physics G: Nuclear and Particle Physics
SN - 0954-3899
IS - 2
ER -