RT Journal Article T1 Diffusion Monte Carlo calculation of compact 𝑇𝑐𝑠0 and 𝑇𝑐 Μ„ 𝑠0 tetraquarks A1 Gordillo, M. C. A1 Segovia, Jorge K1 Quark model K1 Diffusion Monte Carlo K1 Open charm tetraquarks AB The LHCb collaboration amplitude analysis of the decays 𝐡+ β†’ 𝐷+π·βˆ’πΎ+, 𝐡+ β†’ π·βˆ’π·+𝑠 πœ‹+, and 𝐡0 β†’ ̄𝐷0𝐷+𝑠 πœ‹βˆ’suggested the existence of two new resonant 𝐽𝑃 = 0+ states with minimum quark content 𝑒̄𝑑̄𝑠𝑐 and 𝑠̄𝑒̄𝑑𝑐/𝑠̄𝑑̄𝑒𝑐,named 𝑇𝑐𝑠0 and 𝑇𝑐 Μ„ 𝑠0, respectively. In this work, we used the diffusion Monte Carlo (DMC) method to computethe masses of those tetraquarks within the framework of the constituent quark model. We describe the systemsas compact structures, not as diquark/antidiquark or meson/meson arrangements. In this context, compactmeans that we used directly the eigenvectors of the spin, color and flavor operators without any splitting and/or(re)combination of smaller units. This allows us to deduce the existence of two distinct bound configurations foreach composition, corresponding to ground and excited flavor states. In both cases, the excited flavor states arethe ones with masses comparable to the ones observed by LHCb. In addition, our analysis allows us to assignunambiguously an isospin value of 𝐼=1 to the experimentally obtained 𝑇𝑐𝑠0 tetraquark.1. PB Elsevier YR 2025 FD 2025-10-01 LK https://hdl.handle.net/10433/27036 UL https://hdl.handle.net/10433/27036 LA en NO Phys. Lett. B 870 (2025) 139927 NO Universidad Pablo de Olavide. Departamento de Sistemas FΓ­sicos, QuΓ­micos y Naturales DS RIO RD Jun 25, 2026