Hidden-Beauty Broad Resonance $Y_b(10890)$ in Thermal QCD

J. Y. Süngü; A. Türkan; H. Dağ; E. Veli Veliev

Hidden-Beauty Broad Resonance $Y_b(10890)$ in Thermal QCD

High Energy Physics - Phenomenology 2018-09-20 v1

Authors: J. Y. Süngü , A. Türkan , H. Dağ , E. Veli Veliev

Abstract

In this work, the mass and pole residue of resonance $Y_b$ is studied by using QCD sum rules approach at finite temperature. Resonance $Y_b$ is described by a diquark-antidiquark tetraquark current, and contributions to operator product expansion are calculated by including QCD condensates up to dimension six. Temperature dependences of the mass $m_{Y_b}$ and the pole residue $\lambda_{Y_b}$ are investigated. It is seen that near a critical temperature $(T_c\simeq190~\mathrm{MeV})$ , the values of $m_{Y_b}$ and $\lambda_{Y_b}$ are decreased to $87\%$ , and to $44\%$ of their values at vacuum.

Keywords

hidden-beauty tetraquark qcd sum rules finite temperature y_b resonance pole residue

Cite

@article{arxiv.1809.07213,
  title  = {Hidden-Beauty Broad Resonance $Y_b(10890)$ in Thermal QCD},
  author = {J. Y. Süngü and A. Türkan and H. Dağ and E. Veli Veliev},
  journal= {arXiv preprint arXiv:1809.07213},
  year   = {2018}
}

Comments

12 pages, 6 figures

Hidden-Beauty Broad Resonance $Y_b(10890)$ in Thermal QCD

Abstract

Keywords

Cite

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