$Qar{s}^{*}ar{Q}s^{*}$ molecular states from QCD sum rules: a view on Y4140 - High Energy Physics - PhenomenologyReport as inadecuate




$Qar{s}^{*}ar{Q}s^{*}$ molecular states from QCD sum rules: a view on Y4140 - High Energy Physics - Phenomenology - Download this document for free, or read online. Document in PDF available to download.

Abstract: Masses for the $Q\bar{s}^{*}\bar{Q}s^{*}$ $Q=c$ or $b$ molecularstates are systematically computed in the framework of QCD sum rules.Technically, contributions of the operators up to dimension six are included inoperator product expansion OPE. The numerical result $4.13\pm0.10 {GeV}$ for$D {s}^{*}\bar{D} {s}^{*}$ agrees well with the mass $4143.0\pm2.9\pm1.2 {MeV}$for Y4140, which supports the $D {s}^{*}\bar{D} {s}^{*}$ molecularconfiguration for Y4140.



Author: Jian-Rong Zhang, Ming-Qiu Huang

Source: https://arxiv.org/







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