https://doi.org/10.1140/epja/s10050-021-00601-w
Regular Article - Theoretical Physics
Mass-spectroscopy of [
] and [
] tetraquark states in a diquark–antidiquark formalism
Department of Physics, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India
Received:
13
July
2021
Accepted:
2
October
2021
Published online:
18
October
2021
In this article, we utilise the non-relativistic potential model to calculate the mass-spectra of all bottom [] and heavy-light bottom [] (q = u,d) tetraquark states in diquark–antidiquark approximation. The four-body problem is reduced into two body problem by numerically solving the 
equation using a Cornell-inspired potential along with relativistic correction term. The splitting structure of the tetraquark spectrum is described using spin-dependent terms (spin-spin, spin-orbit, and tensor). We have successfully calculated and predicted the masses of bottom mesons, diquarks and tetraquarks. The masses of S and P-wave tetraquark states [] and [], respectively, are found to be between 18.7–19.4 GeV and 10.4–11.3 GeV, in which the masses of S-wave [] states are less than the 2
, 
, and 2
threshold. Additionally, we have investigated the 
and 
states in the current model and found that they are 150 MeV below the 
and 
thresholds.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
