Masses and magnetic moments of doubly heavy tetraquarks via diffusion Monte Carlo method

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Mutuk H.

European Physical Journal C, vol.84, no.4, 2024 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 4
  • Publication Date: 2024
  • Doi Number: 10.1140/epjc/s10052-024-12736-3
  • Journal Name: European Physical Journal C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
  • Open Archive Collection: AVESIS Open Access Collection
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

We present mass spectrum and magnetic moments of the n¯n¯QQ states, where n=u,d,s and Q=c,b. We solve four-body Schrödinger equation with a quark potential model by using diffusion Monte Carlo (DMC) method. The quark potential is based on the Coulomb, confinement and spin–spin interaction terms. We find mass and magnetic moment of the Tcc+ state as MTcc+=3892MeV and μ=0.28μN,respectively. We also find the mass and magnetic moment of Tbb- as MTbb-=10338MeV and μ=-0.32μN, respectively. We find some bound state candidates of doubly heavy tetraquark systems with I(JP)=0(1)+nnb¯b¯,I(JP)=0(0)+nnc¯b¯,I(JP)=0(1)+nnc¯b¯, and I(JP)=1/2(1)+nsb¯b¯. We compare our results with other approaches in the literature.