Prediction of five-flavored pentaquarks

We analyze the possibility of the existence of a fully exotic pentaquark state udscb¯, which is made from the five different flavors participating in the strong interactions. We investigate the coupled channel effects of the B(⁎)Ξc(′) system through t-channel vector meson exchange to search for such...

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Main Authors: Chao-Wei Shen, Ulf-G. Meißner
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269322003318
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author Chao-Wei Shen
Ulf-G. Meißner
author_facet Chao-Wei Shen
Ulf-G. Meißner
author_sort Chao-Wei Shen
collection DOAJ
description We analyze the possibility of the existence of a fully exotic pentaquark state udscb¯, which is made from the five different flavors participating in the strong interactions. We investigate the coupled channel effects of the B(⁎)Ξc(′) system through t-channel vector meson exchange to search for such states. A BΞc and a BΞc′ bound state are found to have binding energies of about 10−30 MeV with BsΛc and BcΛ being the possible decay channels. Similarly, a bound state is formed in the B⁎Ξc and B⁎Ξc′ channels, respectively. The properties of these states including pole positions, decay widths and couplings to other channels are extracted. These states could be searched for through the pp→BcΛX or pp→Bs(⁎)ΛcX processes by the LHCb collaboration.
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spelling doaj.art-3e4bb13a0e19411ea4668ca2e4e6e45f2022-12-22T00:39:06ZengElsevierPhysics Letters B0370-26932022-08-01831137197Prediction of five-flavored pentaquarksChao-Wei Shen0Ulf-G. Meißner1Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany; Corresponding author.Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany; Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany; Tbilisi State University, 0186 Tbilisi, GeorgiaWe analyze the possibility of the existence of a fully exotic pentaquark state udscb¯, which is made from the five different flavors participating in the strong interactions. We investigate the coupled channel effects of the B(⁎)Ξc(′) system through t-channel vector meson exchange to search for such states. A BΞc and a BΞc′ bound state are found to have binding energies of about 10−30 MeV with BsΛc and BcΛ being the possible decay channels. Similarly, a bound state is formed in the B⁎Ξc and B⁎Ξc′ channels, respectively. The properties of these states including pole positions, decay widths and couplings to other channels are extracted. These states could be searched for through the pp→BcΛX or pp→Bs(⁎)ΛcX processes by the LHCb collaboration.http://www.sciencedirect.com/science/article/pii/S0370269322003318
spellingShingle Chao-Wei Shen
Ulf-G. Meißner
Prediction of five-flavored pentaquarks
Physics Letters B
title Prediction of five-flavored pentaquarks
title_full Prediction of five-flavored pentaquarks
title_fullStr Prediction of five-flavored pentaquarks
title_full_unstemmed Prediction of five-flavored pentaquarks
title_short Prediction of five-flavored pentaquarks
title_sort prediction of five flavored pentaquarks
url http://www.sciencedirect.com/science/article/pii/S0370269322003318
work_keys_str_mv AT chaoweishen predictionoffiveflavoredpentaquarks
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