We investigate the symmetry property and the stability of the heptaquark containing two identical heavy antiquarks using color-spin interaction. We construct the wave function of the heptaquark from the Pauli exclusion principle in the SU(3) breaking case. The stability of the heptaquark against the strong decay into one baryon and two mesons is discussed in a simple chromomagnetic model. We find that q2s3s2 with I=0,S=52 is the most stable heptaquark configuration that could be probed by reconstructing the Λ+φ+φ invariant mass.
Bibliographical noteFunding Information:
This work was supported by the Korea National Research Foundation under Grant No. 2016R1D1A1B03930089. The work of W. S. P. was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education (Grant No. 2017R 1D 1A 1B 03028419).
© 2017 American Physical Society.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)