Spin-2 QQQ̅s̅ Tetraquarks in QCD Sum Rules

Abstract

The J^P=2⁺ ccc̅s̅ and bbb̅s̅ tetraquarks are studied in parallel within the two-point QCD Sum Rules framework using the same symmetric axial-vector⊗axial-vector interpolating current. The current-specific OPE sectors retained through dimension seven within the stated background-field truncation are evaluated with a common symbolic construction, with the bottom channel obtained by the heavy-flavour replacement c→ b. The same pole-dominance and OPE-convergence criteria are imposed in both channels. The adopted charm region is √(s₀)=5.7GeV with 3.6≤ M_B²≤4.3GeVsq, whereas the bottom region is √(s₀)=14.3GeV with 9.8≤ M_B²≤10.8GeVsq. At representative Borel points, the extracted masses are 5.239GeV and 13.832GeV, respectively. After the QCD-input, continuum-threshold, and Borel-window variations are combined, the final results are m_{ccc̅s̅, 2⁺}=5.239±0.061GeV and m_{bbb̅s̅, 2⁺}=13.832±0.059GeV.

New CP sum rules from exact U-spin degeneracy
Chao-Qiang Geng, Chia-Wei Liu, Sheng-Lin Liu +1
Physics Letters B30 Oct 2026Peer-reviewedCC BY 4.0High-energy & particle physicsCrossref
U-spin sum rules in charmed baryon decays beyond the U-spin limit
Si-Jia Wen, Di Wang
arXiv18 Oct 2026PreprintCC BY 4.0Full textHigh-energy & particle physicsarXiv
Tensor-structure sum rules for spin-1 targets at all Q²
Vladimir Pascalutsa, Marc Vanderhaeghen
arXiv7 Oct 2026PreprintCC BY 4.0Full textAtomic, molecular & optical physics High-energy & particle physicsarXiv
Large spin splitting metallic altermagnets from machine-learned design rules
Ali Sufyan, Brahim Marfoua, J. Andreas Larsson +2
arXiv8 Oct 2026PreprintCC BY 4.0Full textCondensed matterarXiv
Bubble-Sort Exchange Networks: Symmetry Selection Rules and Language-Model Distillation on Exchange-Only Spin Chains
Yuichiro Minato
arXiv15 Oct 2026PreprintarXiv licenceFull textQuantum physics & quantum informationarXiv

Cite

BibTeX RIS

BibTeX

@misc{akan2026spin2,
  title = {{Spin-2 $QQ\bar Q\bar s$ Tetraquarks in QCD Sum Rules}},
  author = {Tarik Akan},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.36925},
  eprint = {2609.36925},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.36925},
  note = {CC BY 4.0},
}

RIS

TY  - UNPB
TI  - Spin-2 QQQ̅s̅ Tetraquarks in QCD Sum Rules
AU  - Tarik Akan
PY  - 2026
DA  - 2026/09/29
PB  - arXiv
DO  - 10.48550/arxiv.2609.36925
UR  - https://arxiv.org/abs/2609.36925
AB  - The J^P=2^+ ccc̅s̅ and bbb̅s̅ tetraquarks are studied in parallel within the two-point QCD Sum Rules framework using the same symmetric axial-vector⊗axial-vector interpolating current. The current-specific OPE sectors retained through dimension seven within the stated background-field truncation are evaluated with a common symbolic construction, with the bottom channel obtained by the heavy-flavour replacement c→ b. The same pole-dominance and OPE-convergence criteria are imposed in both channels. The adopted charm region is √(s_0)=5.7GeV with 3.6≤ M_B^2≤4.3GeVsq, whereas the bottom region is √(s_0)=14.3GeV with 9.8≤ M_B^2≤10.8GeVsq. At representative Borel points, the extracted masses are 5.239GeV and 13.832GeV, respectively. After the QCD-input, continuum-threshold, and Borel-window variations are combined, the final results are m_ccc̅s̅, 2^+=5.239±0.061GeV and m_bbb̅s̅, 2^+=13.832±0.059GeV.
ER  -

Abstract

Related

Cite