Please use this identifier to cite or link to this item:
https://doi.org/10.21256/zhaw-15857| Publication type: | Article in scientific journal |
| Type of review: | Not specified |
| Title: | Analysis of the Low-Energy π-p Elastic-Scattering Data |
| Authors: | Matsinos, E. Rasche, G. |
| DOI: | 10.4236/jmp.2012.310174 10.21256/zhaw-15857 |
| Published in: | Journal of Modern Physics |
| Volume(Issue): | 3 |
| Issue: | 10 |
| Page(s): | 1369 |
| Pages to: | 1387 |
| Issue Date: | 2012 |
| Publisher / Ed. Institution: | Scientific Research Publishing |
| ISSN: | 2153-1196 2153-120X |
| Language: | English |
| Subjects: | Phase-shifts; Pion-nucleon; Hadronic-constants |
| Subject (DDC): | 530: Physics |
| Abstract: | We report the results of a phase-shift analysis (PSA) of the low-energy elastic-scattering data. Following the method which we had set forth in our previous PSA, we first investigate the self-consistency of the low-energy elastic-scattering databases, via two separate analyses of (first) the pi+ p and (subsequently) the pi- p elastic- scattering data. There are two main differences to our previous PSA: 1) we now perform only one test for the acceptance of each data set (based on its contribution to the overall chi-squared) and 2) we adopt a more stringent acceptance criterion in the statistical tests. We show that it is possible to obtain self-consistent databases after removing a very small amount of the data (4.57% of the initial database). We subsequently fit the ETH model [38] to the truncated elastic-scattering databases. The model-parameter values show reasonable stability when subjected to different criteria for the rejection of single data points and entire data sets. Our result for the pseudovector coupling constant is 0.0726 +- 0.0014. We extract the scattering lengths and volumes, as well as the s- and p-wave hadronic phase shifts up to T = 100 MeV. Large differences in the s-wave part of the interaction can be seen when comparing our hadronic phase shifts with the current SAID solution (WI08); there is general agreement in the p waves, save for the P11 hadronic phase shift. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/15857 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Applied Mathematics and Physics (IAMP) Institute of Mechatronic Systems (IMS) |
| Appears in collections: | Publikationen School of Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2012_Matsinos-Rasche_JMP_Analysis-low-energy-elastic-scattering-data.pdf | 861.1 kB | Adobe PDF |  View/Open |
Show full item record
Matsinos, E., & Rasche, G. (2012). Analysis of the Low-Energy π-p Elastic-Scattering Data. Journal of Modern Physics, 3(10), 1369–1387. https://doi.org/10.4236/jmp.2012.310174
Matsinos, E. and Rasche, G. (2012) ‘Analysis of the Low-Energy π-p Elastic-Scattering Data’, Journal of Modern Physics, 3(10), pp. 1369–1387. Available at: https://doi.org/10.4236/jmp.2012.310174.
E. Matsinos and G. Rasche, “Analysis of the Low-Energy π-p Elastic-Scattering Data,” Journal of Modern Physics, vol. 3, no. 10, pp. 1369–1387, 2012, doi: 10.4236/jmp.2012.310174.
MATSINOS, E. und G. RASCHE, 2012. Analysis of the Low-Energy π-p Elastic-Scattering Data. Journal of Modern Physics. 2012. Bd. 3, Nr. 10, S. 1369–1387. DOI 10.4236/jmp.2012.310174
Matsinos, E., and G. Rasche. 2012. “Analysis of the Low-Energy π-P Elastic-Scattering Data.” Journal of Modern Physics 3 (10): 1369–87. https://doi.org/10.4236/jmp.2012.310174.
Matsinos, E., and G. Rasche. “Analysis of the Low-Energy π-P Elastic-Scattering Data.” Journal of Modern Physics, vol. 3, no. 10, 2012, pp. 1369–87, https://doi.org/10.4236/jmp.2012.310174.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.