\begin{document}$ \chi_{c0}(3915) $\end{document} was first observed by the Belle experiment in the \begin{document}$ \omega J/\psi $\end{document} invariant mass spectrum in the process \begin{document}$ B\to K\omega J/\psi $\end{document} and subsequently confirmed by the BaBar experiment. Both experiments reported the resonant parameters of this particle in the processes \begin{document}$ \gamma\gamma\to\omega J/\psi $\end{document} and \begin{document}$ B\to K\omega J/\psi $\end{document} assuming \begin{document}$ \chi_{c0}(3915) $\end{document} as an S-wave Breit-Wigner resonance. We performed a global fit to the distributions of invariant mass of \begin{document}$ \omega J/\psi $\end{document} measured by the Belle and BaBar experiments and additionally incorporated the measurements reported by the LHCb experiment to extract the mass and width of \begin{document}$ \chi_{c0}(3915) $\end{document}. We obtained \begin{document}$ M=3920.9\pm0.9 $\end{document} MeV/\begin{document}$ c^2 $\end{document} and \begin{document}$ \Gamma=18.2\pm2.4 $\end{document} MeV, which are consistent with the values from PDG within one standard deviation but with higher precision."> Determination of the resonant parameters of <inline-formula><tex-math id="M1">\begin{document}${ \boldsymbol\chi_{\boldsymbol c \bf 0}\bf (3915)} $\end{document}</tex-math><alternatives><graphic specific-use="online" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="//www.macurncorp.com/cpc/article/app/id/f455a26a-23af-4f04-9e6a-233bfde5273e/CPC-2024-0138_M1.jpg"/><graphic specific-use="print" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="//www.macurncorp.com/cpc/article/app/id/f455a26a-23af-4f04-9e6a-233bfde5273e/CPC-2024-0138_M1.png"/></alternatives></inline-formula> with global fit -
  • [1]

    S. K.Choiet al. (Belle), Phys. Rev. Lett.91, 262001 (2003)

  • [2]

    B. Auberet al. (BaBar), Phys. Rev. Lett.95, 042001 (2005)

  • [3]

    Q. Heet al. (CLEO), Phys. Rev. D74, 091104 (2006)

  • [4]

    C. Z. Yuanet al. (Belle), Phys. Rev. Lett.99, 0182004 (2007)

  • [5]

    M. Ablikimet al. (BESIII), Phys. Rev. Lett.110, 252001 (2013)

  • [6]

    Z. Q. Liuet al. (Belle), Phys. Rev. Lett.110, 252002 (2013)

  • [7]

    S. Ueharaet al. (Belle), Phys. Rev. Lett.104, 092001 (2010)

  • [8]

    J. P. Leeset al. (BaBar), Phys. Rev. D86, 072002 (2012)

  • [9]

    K. Abeet al. (Belle), Phys. Rev. Lett.94, 182002 (2005)

  • [10]

    B. Aubertet al. (BaBar), Phys. Rev. Lett.101, 082001 (2008)

  • [11]

    P. del Amo Sanchezet al. (BaBar), Phys. Rev. D82, 011101 (2010)

  • [12]

    R. D. Matheus, F. S. Navarra, M. Nielsenet al., Phys. Rev. D80, 056002 (2009)

  • [13]

    W. Chen, H. y. Jin, R. T. Kleivet al., Phys. Rev. D88(4), 045027 (2013)

  • [14]

    B. A. Li, Phys. Lett. B605, 306 (2005)

  • [15]

    L. Maiani, F. Piccinini, A. D. Polosaet al., Phys. Rev. D71, 014028 (2005)

  • [16]

    R. L. Workmanet al. (Particle Data Group), PTEP2022, 083C01 (2022)

  • [17]

    F. K. Guo and U. G. Meissner, Phys. Rev. D86, 091501 (2012)

  • [18]

    S. L. Olsen, Phys. Rev. D91, 057501 (2015)

  • [19]

    R. Aaijet al. (LHCb), Phys. Rev. D102, 112003 (2020)

  • [20]

    F. James and M. Roos, Comput. Phys. Commun.10, 343 (1975)

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