Abstract.
We study the \( B^{+} \rightarrow J/\psi \omega K^{+}\) reaction, and show that it is driven by the presence of two resonances, the X(3940) and X(3930), that are of molecular nature and couple most strongly to \( D^{\ast} \bar{D}^{\ast}\), but also to \( J/\psi\omega\). Because of that, in the \( J/\psi\omega\) mass distribution we find a peak related to the excitation of the resonances and a cusp with large strength at the \( D^{\ast} \bar{D}^{\ast}\) threshold.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Tanabashi et al., Phys. Rev. D 98, 030001 (2018)
H.X. Chen, W. Chen, X. Liu, S.L. Zhu, Phys. Rep. 639, 1 (2016)
F.K. Guo, C. Hanhart, U.G. Meißner, Q. Wang, Q. Zhao, B.S. Zou, Rev. Mod. Phys. 90, 015004 (2018)
M. Karliner, J.L. Rosner, T. Skwarnicki, Annu. Rev. Nucl. Part. Sci. 68, 17 (2018)
E. Wang, J.J. Xie, L.S. Geng, E. Oset, Phys. Rev. D 97, 014017 (2018)
L.R. Dai, J.M. Dias, E. Oset, Eur. Phys. J. C 78, 210 (2018)
LHCb Collaboration (R. Aaij et al.), Phys. Rev. D 95, 012002 (2017)
LHCb Collaboration (R. Aaij et al.), Phys. Rev. Lett. 118, 022003 (2017)
LHCb Collaboration (R. Aaij et al.), Phys. Rev. D 95, 012002 (2017)
R. Molina, E. Oset, Phys. Rev. D 80, 114013 (2009)
BESIII Collaboration (M. Ablikim et al.), Phys. Rev. D 97, 032008 (2018)
E. Wang, J.J. Xie, L.S. Geng, E. Oset, The X(4140) and X(4160) resonances in the $e^{+}e^{-}\rightarrow \gamma J/\psi \phi$ reaction, arXiv:1806.05113 [hep-ph]
G. Andreassi, Search for exotic resonances in the decay $B^{+} \rightarrow J/\psi\omega K^{+}$ in the LHCb experiment at CERN, CERN-THESIS-2014-243
E.J. Eichten, K. Lane, C. Quigg, Phys. Rev. D 69, 094019 (2004)
Belle Collaboration (K. Abe et al.), Phys. Rev. Lett. 94, 182002 (2005)
BaBar Collaboration (B. Aubert et al.), Phys. Rev. Lett. 101, 082001 (2008)
F.K. Guo, U.G. Meißner, Phys. Rev. D 86, 091501 (2012)
Belle Collaboration (S. Uehara et al.), Phys. Rev. Lett. 96, 082003 (2006)
BaBar Collaboration (B. Aubert et al.), Phys. Rev. D 81, 092003 (2010)
Z.Y. Zhou, Z. Xiao, H.Q. Zhou, Phys. Rev. Lett. 115, 022001 (2015)
Belle Collaboration (K. Chilikin et al.), Phys. Rev. D 95, 112003 (2017)
L.L. Chau, Phys. Rep. 95, 1 (1983)
W.H. Liang, E. Oset, Eur. Phys. J. C 78, 528 (2018)
U.G. Meißner, J.A. Oller, Nucl. Phys. A 679, 671 (2001)
L. Roca, J.E. Palomar, E. Oset, H.C. Chiang, Nucl. Phys. A 744, 127 (2004)
S. Sakai, E. Oset, A. Ramos, Eur. Phys. J. A 54, 10 (2018)
J.M. Blatt, V.F. Weisskopf, Theoretical Nuclear Physics (Springer-Verlag, 1979)
L.R. Dai, R. Pavao, S. Sakai, E. Oset, Eur. Phys. J. A 55, 20 (2019) arXiv:1805.04573 [hep-ph]
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by L. Tolos
Data Availability Statement
This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated during this study are contained in this published article.]
Publisher’s Note
The EPJ Publishers remain neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Dai, L.R., Wang, G.Y., Chen, X. et al. The \(B^{+} \rightarrow J/\psi\omega K^{+}\) reaction and \(D^{\ast} \bar{D}^{\ast}\) molecular states. Eur. Phys. J. A 55, 36 (2019). https://doi.org/10.1140/epja/i2019-12706-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epja/i2019-12706-6