| Autor: |
Gutsche, Thomas, Lyubovitskij, Valery E. |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Phys. Rev. D 100, 094031 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevD.100.094031 |
| Popis: |
We study the hadronic molecular structure of hidden heavy pentaquarks - new exotic states composed of charmed/bottom baryons and $D(D^*)/B(B^*)$ mesons. Based on the observation of three pentaquark candidates $P_c^+(4312)$, $P_c^+(4440)$, and $P_c^+(4457)$ by the LHCb Collaboration we consider the classification of possible flavor partners composed of charmed baryons and $D(D^*)$ mesons within the hadronic molecular approach. We extend this classification to the bottom sector. Using phenomenological Lagrangians we construct baryon-meson bound states governed by the Weinberg-Salam compositeness condition. As an application we consider strong two-body decays of the new exotic states into a light baryon and $V=J/\psi,\Upsilon$ or $P=\eta_c,\eta_b$ mesons. Results are presented in the heavy quark limit. |
| Databáze: |
arXiv |
| Externí odkaz: |
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