Asymptotic mass limit of large fully heavy compact multiquarks Gordillo Bargueño, María Carmen Alcaraz Pelegrina, José Manuel We acknowledge financial support from Ministerio de Ciencia e Innovación MCIN/AEI/10.13039/501100011033 (Spain) under Grant No. PID2020–113565GB-C22 and from Junta de Andalucía group PAIDI-205. We also acknowledge the use of the C3UPO computer facilities at the Universidad Pablo de Olavide. The properties of fully heavy arrangements including a number of quarks between 5 and 12 were calculated within the framework of a constituent quark model by using a diffusion Monte Carlo technique. We considered only clusters in which all the quarks had the same mass and whose number of particles and antiparticles were adequate to produce color singlets. All the multiquarks were in their lowest possible values of L2 and S2 operators. Thus, we considered only color-spin wave functions that were antisymmetric with respect to the interchange of any two quarks of the same type. We found that in both all-c and all-b multiquarks, the mass per particle levels off for arrangements with the number of quarks larger than or equal to six. The analysis of their structure implies that the fully heavy multiquarks are compact structures. 2023-11-02T11:57:48Z 2023-11-02T11:57:48Z 2023-09-21 journal article M. C. Gordillo and J. M. Alcaraz-Pelegrina. Asymptotic mass limit of large fully heavy compact multiquarks. Phys. Rev. D 108, 054027. [DOI: 10.1103/PhysRevD.108.054027] https://hdl.handle.net/10481/85420 10.1103/PhysRevD.108.054027 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Physical Society