$π- π$ Scattering Lengths and Chiral Condensate in NJL Model
| dc.creator | Huang, Mei | |
| dc.creator | Zhuang, Pengfei | |
| dc.creator | Chao, Weiqin | |
| dc.date | 1999-03-25 | |
| dc.date.accessioned | 2026-07-07T04:06:42Z | |
| dc.date.available | 2026-07-07T04:06:42Z | |
| dc.description | Within the general framework of SU(2) Nambu-Jona-Lasinio model beyond mean-field approximation, the S-wave $π- π$ scattering lengths $a_0^0$ and $a_0^2$ are calculated. The numerical results are in agreement with that analyzed from recent experiment $πN \to ππN$ data by using Chew-Low-Goebel technique, and the corresponding chiral condensate $<{\bar q}q>$ is around $-(250 {\rm MeV})^3$, which is close to the ones obtained from lattice and sum rules. | |
| dc.description | 1 RevTeX file, 9 pages with two tables | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9903485 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9903485 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48872 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | $π- π$ Scattering Lengths and Chiral Condensate in NJL Model | |
| dc.type | text |