Feasibility of studying the K$^*_0(700)$ resonance using $\pi^{\rm \pm}$K$^0_{\rm S}$ femtoscopy
| Autor: | Humanic, T. J. |
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| Rok vydání: | 2018 |
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| Druh dokumentu: | Working Paper |
| Popis: | The feasibility of using $\pi^{\rm \pm}$K$^0_{\rm S}$ femtoscopy to experimentally study the K$^*_0(700)$ resonance is considered. The K$^*_0(700)$ resonance is challenging to study due to its broad width and proximity in mass to the K$^*(892)$, both of which predominantly decay via the $\pi$K channel. One of the main interests in the K$^*_0(700)$ is that it is considered a candidate for a tetraquark state. It is proposed to use two-particle femtoscopic methods with $\pi^{\rm \pm}$K$^0_{\rm S}$ pairs produced in proton-proton and heavy ion collisions assuming a strong final-state interaction between them due to elastic scattering and/or via the K$^*_0(700)$ resonance. Calculations of $\pi^{\rm \pm}$K$^0_{\rm S}$ correlation functions are made to estimate the strength of these final-state interactions and to see if this signal can be adequately separated from the K$^*(892)$ background. A possible signature of diquark versus tetraquark behavior of the K$^*_0(700)$ final-state interaction is also discussed. Comment: 9 pages, submitted to J. Phys. G |
| Databáze: | arXiv |
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