Fully heavy tetraquark resonant states with different flavors

Author:

Wu Wei-Lin1ORCID,Ma Yao1ORCID,Chen Yan-Ke1ORCID,Meng Lu2ORCID,Zhu Shi-Lin1ORCID

Affiliation:

1. Peking University

2. Ruhr-Universität Bochum

Abstract

We use the quark potential model to calculate the mass spectrum of the S-wave fully heavy tetraquark systems with different flavors, including the bcb¯c¯,bbc¯c¯,ccc¯b¯, and bbb¯c¯ systems. We employ the Gaussian expansion method to solve the four-body Schrödinger equation, and the complex scaling method to identify resonant states. The bcb¯c¯,bbc¯c¯,ccc¯b¯, and bbb¯c¯ resonant states are obtained in the mass regions of (13.2, 13.5), (13.3, 13.6), (10.0, 10.3), (16.5, 16.7) GeV, respectively. Among these states, the bcb¯c¯ tetraquark states are the most promising ones to be discovered in the near future. We recommend the experimental exploration of the 1++ and 2++bcb¯c¯ states with masses near 13.3 GeV in the J/ψϒ channel. From the root-mean-square radii, we find that all the resonant states we have identified are compact tetraquark states. Published by the American Physical Society 2024

Funder

National Natural Science Foundation of China

Deutsche Forschungsgemeinschaft

Peking University

Publisher

American Physical Society (APS)

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