X(3872) and other possible heavy molecular states
By Xiang Liu, Zhi-gang Luo, Yan-Rui Liu, Shi-Lin Zhu. 2008
181 citations recorded by the source corpus.
AbstractWe perform a systematic study of the possible molecular states composed of a pair of heavy mesons such as $D\bar{D}$ , $D^{\ast}\bar{D}$ , $D^{\ast}\bar{D}^{\ast}$ in the framework of the meson exchange model. The exchanged mesons include the pseudoscalar, scalar and vector mesons. Through our investigation, we find the following results. (1) The structure X(3764) is not a molecular state. (2) There exists strong attraction in the range r<1 fm for the $D^{*}\bar{D}^{*}$ system with J=0,1. If future experiments confirm Z+(4051) as a loosely bound molecular state, its quantum number is probably JP=0+. Its partner state Φ**0 may be searched for in the π0χc1 channel. (3) Vector meson exchange provides strong attraction in the $D^{\ast}\bar{D}$ channel together with pion exchange. A bound state solution may exist with a reasonable cutoff parameter Λ∼1.4 GeV. X(3872) may be accommodated as a molecular state dynamically although drawing a very definite conclusion needs further investigation. (4) The $B^{\ast}\bar{B}$ molecular state may exist.
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ca0e59b5c76693d7247f1e94c076b38c92805f92
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In Atomic and Molecular Physics, and Optics
In Nuclear and High Energy Physics
Citations in the corpus
- Hadronic molecules (2017, unknown): “…He, 2014; Hidalgo-Duque et al., 2013a; Jansen et al., 2015; Karliner and Rosner, 2015a; Lee et al., 2009, 2011; Li et al., 2013d; Li and Zhu, 2012; Liu et al., 2009a; Mehen and Springer, 2011; Molnar et al., 2016; Nieves and Valderrama, 2011, 2012; Pakvasa and Suzuki, 2004; Sun et al., 2012a,b;…”
- The hidden-charm pentaquark and tetraquark states (2016, background): “[226], the authors performed a dynamical calculation to study whether D∗D̄∗ or DsD̄ ∗ s system can be bound.”
- Nonstandard heavy mesons and baryons: Experimental evidence (2017, background): “which were proposed even before these states were observed (343; 344).”