S =-1 meson-baryon interaction and the role of isospin filtering processes
Result description
A study of the meson-baryon interaction in the S = -1 sector is performed, employing a chiral SU(3) Lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The model is constrained by a large set of experimental data, paying special attention to processes that are sensitive to the NLO contributions, such as the K(-)p -> K+Xi(-), K-0 Xi(0) reactions. The consideration of additional cross sections in single isospin channels, K(-)p -> eta Lambda, eta Sigma, has been found to provide NLO low-energy constants of rather similar size. The stability of these constants has also been tested by the inclusion of explicit resonant terms. Predictions for new isospin filtering processes, like the I = 1K(L)(0)p -> K+Xi(0) reaction that could be measured at the proposed secondary K-L(0) beam at Jlab, or the weak decay of the Lambda(b) into a J/Psi and different meson-baryon pairs in I = 0, available at LHCb, are presented. The measurement of such reactions would put valuable constraints on the chiral models describing the S = -1 meson-baryon interaction.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
S =-1 meson-baryon interaction and the role of isospin filtering processes
Original language description
A study of the meson-baryon interaction in the S = -1 sector is performed, employing a chiral SU(3) Lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The model is constrained by a large set of experimental data, paying special attention to processes that are sensitive to the NLO contributions, such as the K(-)p -> K+Xi(-), K-0 Xi(0) reactions. The consideration of additional cross sections in single isospin channels, K(-)p -> eta Lambda, eta Sigma, has been found to provide NLO low-energy constants of rather similar size. The stability of these constants has also been tested by the inclusion of explicit resonant terms. Predictions for new isospin filtering processes, like the I = 1K(L)(0)p -> K+Xi(0) reaction that could be measured at the proposed secondary K-L(0) beam at Jlab, or the weak decay of the Lambda(b) into a J/Psi and different meson-baryon pairs in I = 0, available at LHCb, are presented. The measurement of such reactions would put valuable constraints on the chiral models describing the S = -1 meson-baryon interaction.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
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 C
ISSN
2469-9985
e-ISSN
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Volume of the periodical
99
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
035211
UT code for WoS article
000462904900004
EID of the result in the Scopus database
2-s2.0-85063286736
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Year of implementation
2019