Scalar fully-charm and bottom tetraquarks under extreme temperatures
Abstract Temperature-dependences of masses and current couplings of the ground state of the fully heavy tetraquarks $$T_{4c}$$ T 4 c and $$T_{4b}$$ T 4 b , composed of charm (c) and bottom (b) quarks and antiquarks with spin-parities $$J^{PC} = 0^{++}$$ J PC = 0 + + are evaluated in the diquark–anti...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-05-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14090-4 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract Temperature-dependences of masses and current couplings of the ground state of the fully heavy tetraquarks $$T_{4c}$$ T 4 c and $$T_{4b}$$ T 4 b , composed of charm (c) and bottom (b) quarks and antiquarks with spin-parities $$J^{PC} = 0^{++}$$ J PC = 0 + + are evaluated in the diquark–antidiquark picture using Thermal QCDSR including vacuum condensates up to dimension four. The calculated values for $$cc\bar{c}\bar{c}$$ c c c ¯ c ¯ and $$bb\bar{b}\bar{b}$$ b b b ¯ b ¯ tetraquark states at $$T=0$$ T = 0 align well with the experimental data on the broad structures. Based on the numerical analyses around the critical temperature, the mass of the $$T_{4c}$$ T 4 c state decreases by $$8\%$$ 8 % compared to its vacuum state, while for its b partner, this percentage is approximately $$3.3\%$$ 3.3 % . For the decay constants, the reductions are approximately $$71\%$$ 71 % and $$66.6\%$$ 66.6 % , respectively. The precise exploration of tetraquark states awaits future scrutiny in upcoming experiments, including Belle II, Super-B, PANDA, and LHCb. |
|---|---|
| ISSN: | 1434-6052 |