Exotic Four Quark Matter: $Z_1(4475)$

Abstract

Motivated by the LHCb's recent confirmation of $Z_1(4475)$ as the $J^P=1^{+}$ resonance, we investigate various exotic interpretations of $Z_1(4475)$, which may be an axial vector tetraquark state, the P-wave excitation of the S-wave $D_1{\bar{D}}^{\ast }$ or $D_2{\bar{D}}^{\ast }$ molecule, the S-wave molecule composed of a $D$ or $D^{\ast }$ meson and a D-wave vector $D$ meson, or the cousin molecular state of $Z_c(3900)$ and $Z_c(4020)$ composed of a $D$ or $D^{\ast }$ meson and their radial excitations. With the help of the heavy quark symmetry, we predict the typical radiative and hidden-charm and open-charm strong decay patterns of $Z_1(4475)$, which are crucial to further identify the molecular state assignment of $Z_1(4475)$.

arXiv comment4 Pages, 1 Table. Minor modification added. Accepted by Phys. Rev. D

References in corpus (15)

• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
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• Observation of a charged (DD*bar)- mass peak in e+e- --> pi+ (DD*bar)- at Ecm=4.26 GeV
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• Is Z^+(4430) a loosely bound molecular state?
• $Z^{+}(4430)$ as a $D_1^{\prime }{D}^{\ast }$ ($D_1{D}^{\ast }$) molecular state
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Cited by in corpus (14)

• The hidden-charm pentaquark and tetraquark states
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Hidden-Charm Tetraquarks and Charged Zc States
• Strong decays of the $XYZ$ states
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Resolving the puzzling decay patterns of charged $Z_c$ and $Z_b$ states
• Strong decay patterns of the hidden-charm pentaquark states $P_c(4380)$ and $P_c(4450)$
• The hidden-charm strong decays of the $Z_c$ states
• Molecular Interpretation of the Supercharmonium State Z(4475)
• $Z_c(4430)$ and $Z_c(4200)$ as triangle singularities
• Interpretation of $Y(4390)$ as an isoscalar partner of $Z(4430)$ from $D^{\ast }(2010){\bar{D}}_1(2420)$ interaction
• Colloquium: Hadron Production in Open-charm Meson Pair at $e^{+}{e}^{-}$ Collider
• Study of $e^{+}{e}^{-}\to D^{+}{D}^{-}{\pi }^{+}{\pi }^{-}$ at center-of-mass energies from 4.36 to 4.60 GeV