The Molecular Nature of Some Exotic Hadrons

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00534017" target="_blank" >RIV/61389005:_____/20:00534017 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s00601-020-01566-0" target="_blank" >https://doi.org/10.1007/s00601-020-01566-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00601-020-01566-0" target="_blank" >10.1007/s00601-020-01566-0</a>

Result language
angličtina
Original language name
The Molecular Nature of Some Exotic Hadrons
Original language description
The exciting discovery by LHCb of the P-c(4312)(+) and P-c(4450)(+) pentaquarks, or the suggestion of a tetraquark nature for the Z(c)(3900) state seen at BESIII and Belle, have triggered a lot of activity in the field of hadron physics, with new experiments planned for searching other exotic mesons and baryons, and many theoretical developments trying to disentangle the true multiquark nature from their possible molecular origin. After a brief review of the present status of these searches, this paper focusses on recently seen or yet to be discovered exotic heavy baryons that may emerge from a conveniently unitarized meson-baryon interaction model in coupled channels. In particular, we will show how interferences between the different coupled-channel amplitudes of the model may reveal the existence of a N* resonance around 2 GeV having a meson-baryon quasi-bound state nature. We also discuss the possible interpretation of some of the Omega(c) states recently discovered at LHCb as being hadron molecules. The model also predicts the existence of doubly-charmed quasibound meson-baryon Xi(cc) states, which would be excited states of the ground-state Xi(cc)(3621) MeV, whose mass has only been recently established. Extensions of these results to the bottom sector will also be presented.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/GA19-19640S" target="_blank" >GA19-19640S: Study of Hadron Interactions, Production and Bound States</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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