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Y(4143) is probably a molecular partner of Y(3930) · Around

2009

Y(4143) is probably a molecular partner of Y(3930)

Liu, Xiang, Zhu, Shi-Lin

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After discussing the various possible interpretations of the Y(4143) signal observed by the CDF collaboration in the $J/\psi \phi$ mode, we tend to conclude that Y(4143) is probably a $D_s^\ast {\bar D}_s^\ast$ molecular state with $J^{PC}=0^{++}$ or $2^{++}$ while Y(3930) is its $D^\ast {\bar D}^\ast$ molecular partner as predicted in our previous work (arXiv:0808.0073).

Both the hidden-charm and open charm two-body decays occur through the rescattering of the vector components within the molecular states while the three- and four-body open charm decay modes are forbidden kinematically.
Hence their widths are narrow naturally.
CDF, Babar and Belle collaborations may have discovered heavy molecular states already.

Built on

S.-K. Choi et al. (Belle Collaboration), Phys. Rev. Lett. 94, 182002 (2005)
2005
Earlier work this paper cites.
Shi-Lin Zhu, Phys. Lett. B 625, 212 (2005)
2005
Earlier work this paper cites.
E. Kou and O. Pene, Phys. Lett. B 631 (2005) 164
2005
Earlier work this paper cites.

Similar

F. Close and P. Page, Phys. Lett. B 628, 215 (2005)
2005
Cited alongside, same era.
Y. Cui, X. L. Chen, W. Z. Deng, Shi-Lin Zhu, High Energy Phys. Nucl. Phys. 31, 7 (2007)
2007
Cited alongside, same era.
X. Liu, B. Zhang, Shi-Lin Zhu, Phys. Lett. B 645, 185 (2007)
2007
Cited alongside, same era.
X. Liu, Z. G. Luo, Y. R. Liu, Shi-Lin Zhu, arXiv:0808.0073 [hep-ph]
Original
Cited in the paper.
T. Aaltonen et al. (CDF Collaboration), arXiv:0903.2229v1 [hep-ex]
Original
Cited in the paper.

Then

B. Aubert et al. (BABAR Collaboration), Phys. Rev. Lett. 101, 082001 (2008)
2008
Later among the works it cites.
Shi-Lin Zhu, Int. J. Mod. Phys. E 17, 283 (2008)
2008
Later among the works it cites.

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