2021/11/01 by M. Padmanath, Padmanath, M., Nilmani Mathur +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.2111.01147
9 pages, 6 figures. Proceedings of the 38th International Symposium on Lattice Field Theory (LATTICE2021)
arxiv created 2021/11/01 · arxiv updated 2021/11/03
We present the results of a lattice calculation of four-quark states with the quark contents bcq1q2 where q1,q2 ∈ u,d,s. For the spin 1 states, when the light quark (q1, q2) masses are lighter, we find at least one energy level below the possible elastic threshold energy levels. These calculations are performed on three dynamical Nf = 2+1+1 highly improved staggered quark ensembles at lattice spacings of about 0.12, 0.09, and 0.06 fm. We use the overlap action for light to charm quarks while a non-relativistic action with non-perturbatively improved coefficients is employed for the bottom quark.