1. Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
| Title | Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition |
|---|---|
| Author info | Matthias F. M. Lutz, Evgeni E. Kolomeitsev, C. L. Korpa |
| Author | Lutz Matthias F. M. (34%) |
| Co-authors | Kolomeitsev Evgeni E. 1970- (33%) UMBFP06 - Katedra fyziky Korpa C. L. (33%) |
| Source document | Physical Review D : covering particles, fields, gravitation, and cosmology. Vol. 92, no. 1 (2015), pp. 016003-1-016003-18. - Maryland : American Physical Society, 2015 |
| Keywords | čiastočné vlny fyzika - physics partial wave |
| Language | English |
| Country | United States of America |
| systematics | 53 |
| Annotation | We study the analytic structure of partial-wave amplitudes derived from u- and t-channel exchange processes. The latter plays a crucial role in dispersion-theory approaches to coupled-channel systems that model final state interactions in QCD. A general spectral representation is established that is valid in the presence of anomalous thresholds, decaying particles or overlapping left-hand and right-hand cut structures as it occurs frequently in hadron physics. The results are illustrated at hand of ten specific processes |
| Public work category | ADC |
| No. of Archival Copy | 33414 |
| Catal.org. | BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici |
| Database | xpca - PUBLIKAČNÁ ČINNOSŤ |
| References | PERIODIKÁ-Súborný záznam periodika |