Počet záznamů: 1
The constraining effect of isospin filtering processes in low energy meson-baryon interactions
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SYSNO ASEP 0509988 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název The constraining effect of isospin filtering processes in low energy meson-baryon interactions Tvůrce(i) Feijoo, Aliau Eduardo Alberto (UJF-V) ORCID, SAI
Magas, V. K. (ES)
Ramos, A. (ES)Celkový počet autorů 3 Číslo článku 040013 Zdroj.dok. AIP Conference Proceedings, 2130. - Melville : American Institute of Physics Inc., 2019 - ISSN 0094-243X - ISBN 978-0-7354-1872-1 Poč.str. 8 s. Forma vydání Tištěná - P Akce 13th International Conference on Hypernuclear and Strange Particle Physics Datum konání 24.06.2018 - 29.06.2018 Místo konání Portsmouth Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova resonance ; baryons ; kaonic atoms Vědní obor RIV BE - Teoretická fyzika Obor OECD Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) Institucionální podpora UJF-V - RVO:61389005 UT WOS 000557835700042 EID SCOPUS 85070297411 DOI 10.1063/1.5118410 Anotace Motivated by the recent precise SIDDHARTA measurement of the energy shift and width of kaonic hydrogen, we have revisited the theoretical study of the meson-baryon interaction in the S = -1 sector, employing a chiral SU(3) lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The parameters of the model have been fitted to a large set of experimental data, paying attention to processes that are especially sensitive to the NLO terms, such as the K- p (rightarrow) K+Xi-, K0 Xi0 reactions. Explicit resonant terms have been included to explore their effects on the stability of the low-energy constants and the data description. We have also studied the role of new single isospin reactions and have found them to provide more homogeneous and reliable NLO parameters. We conclude that additional isospin filtering processes, like the KL0p(rightarrow)K+Xi0 reaction that could be measured at the proposed secondary KL0 beam at Jlab, would put valuable constraints on the chiral models describing the S = -1 meson-baryon interaction. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2020
Počet záznamů: 1