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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
L. Yan
Full text: pdf
Pre-published on: 2019 September 24
Published on: 2019 October 04
Abstract
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.
DOI: https://doi.org/10.22323/1.352.0166
Open Access
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