ELASTIC PI-PI SCATTERING TO 2 LOOPS

Authors
BIJNENS J COLANGELO G ECKER G GASSER J SAINIO ME
Citation
J. Bijnens et al., ELASTIC PI-PI SCATTERING TO 2 LOOPS, Physics letters. Section B, 374(1-3), 1996, pp. 210-216
Citations number
39
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
374
Issue
1-3
Year of publication
1996
Pages
210 - 216
Database
ISI
SICI code
0370-2693(1996)374:1-3<210:EPST2L>2.0.ZU;2-R
Abstract
We evaluate analytically the elastic pi pi scattering amplitude to two loops in chiral perturbation theory and give numerical values for the two S-wave scattering lengths and for the phase shift difference <del ta(0)(0)-delta(1)(1).