Since the first XYZ particle $X(3872)$ was observed in 2003, many exotic states have been found by spectroscopy studies in beauty and charm hadrons.
In this paper, the latest XYZ results are reviewed, mainly including $X(3872), X(3915), Y(4260), Y(4360), Y(4660), Z_c(3900), Z_c(4020)$ and $Z(4430)$.
The spin parties of X and Z particles have been studied, and the comparison between different final states in Y particles has been done, which are helpful to understand
the nature of XYZ particles.
Volume 352 -
XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019) -
Working Group 5: Physics with Heavy Flavours
Results of the XYZ states from experiments
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Pre-published on:
September 24, 2019
Published on:
October 04, 2019
Abstract
DOI: https://doi.org/10.22323/1.352.0166
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.