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arXiv · 1905.00713

Electromagnetic properties of the $d^*(2380)$ hexaquark

M. Bashkanov·D. P. Watts·A. Pastore
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Abstract

Experiments with intense photon and electron beams have the potential to provide access to nontrivial properties of the recently discovered $d^*(2380)$ hexaquark including its size, structure, magnetic moment, quadrupole and octupole deformations. In this paper we investigate the sensitivity of ongoing and planned experiments to various properties of the $d^*(2380)$, employing models based on both constituent quark and pion cloud frameworks. Our calculations indicate that for photoinduced reactions on the deuteron the $d^*(2380)$ is predominantly produced from the $D-wave$ component of the deuteron. We confirm earlier findings that the intrinsic quadrupole deformation of the $d^*(2380)$ should be small. We also demonstrate an ability to extract the $d^*(2380)$ magnetic moment and put constrains on the $d^*(2380)$ $M3/E2$ ratio.

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M. Bashkanov, D. P. Watts, A. Pastore. 2019-07-15. Electromagnetic properties of the $d^*(2380)$ hexaquark. https://doi.org/10.1103/physrevc.100.012201

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