Investigation of full-charm and full-bottom pentaquark states

Abstract

The continuous advancement of experimental techniques and investigations has led to observations of various exotic states in particle physics. Each addition to this family of states not only raises expectations for future discoveries but also focuses attention on such potential new states. Building upon this motivation and inspired by recent observations of various traditional and exotic particles containing an increased number of heavy quarks, our study provides a spectroscopic search for potential pentaquark states with spin-parity $$\frac{3}{2}^-$$ 3 2 - and composed entirely of charm or bottom quarks. We predict the masses for full-charm and full-bottom pentaquark states as $$m = 7628 \pm 112$$ m = 7628 ± 112 MeV and $$m = 21,982 \pm 144$$ m = 21 , 982 ± 144 MeV, respectively. We also compute the current couplings of these states to vacuum, which are main inputs in investigations of their various possible decays.