Rai Choudhury, S. ; Kumar, Aditya ; Saxena, R. P. (1966) Effect of dipion resonances on the pion-nucleon scattering amplitude Physical Review, 143 (4). pp. 1159-1163. ISSN 0031-899X
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Official URL: http://link.aps.org/doi/10.1103/PhysRev.143.1159
Related URL: http://dx.doi.org/10.1103/PhysRev.143.1159
Abstract
The effect of the newly discovered dipion resonance at about 730 MeV and of a possible one at about 400 MeV on pion-nucleon scattering is evaluated. Partial-wave dispersion relations are solved via the N/D decomposition by matrix-inversion methods. Two choices of "phase-space" factors are considered. The results, as compared with earlier calculations of a similar type, show marked improvement in P33 and P11 scattering lengths (with the Martin-Uretsky-type phase-space factor) but continue to disagree violently with experiment on the S½T=½ scattering length.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 38758 |
| Deposited On: | 03 May 2011 13:00 |
| Last Modified: | 03 May 2011 13:00 |
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