Testing chiral unitary models for the Λ(1405) in K+πΣ photoproduction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00566026" target="_blank" >RIV/61389005:_____/22:00566026 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.106.074017" target="_blank" >https://doi.org/10.1103/PhysRevD.106.074017</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.106.074017" target="_blank" >10.1103/PhysRevD.106.074017</a>
Alternative languages
Result language
angličtina
Original language name
Testing chiral unitary models for the Λ(1405) in K+πΣ photoproduction
Original language description
We adopt a novel formalism for the low-energy analysis of the gamma p -> K+ pi Sigma photoproduction reaction, outlined recently in [P. C. Bruns, arXiv:2012.11298.], to calculate the pi Sigma invariant mass distributions in the Lambda(1405) resonance region. The approach adheres to constraints arising from unitarity, gauge invariance, and chiral perturbation theory, and is used without adjusting any model parameters. It is found that the meson-baryon rescattering in the final state has a major impact on the magnitude and structure of the generated spectra that are compared with the experimental data from the CLAS Collaboration. We demonstrate a large sensitivity of the theoretical predictions to the choice of the coupled-channel pi Sigma - (K) over barN model amplitudes which should enable one to constrain the parameter space of these models.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/GA19-19640S" target="_blank" >GA19-19640S: Study of Hadron Interactions, Production and Bound States</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
106
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
074017
UT code for WoS article
000896754800001
EID of the result in the Scopus database
2-s2.0-85140254079