TY  - JOUR
AU  - Shi, P. P.
AU  - Baru, V.
AU  - Guo, F. K.
AU  - Hanhart, C.
AU  - Nefediev, A.
PY  - 2024
DA  - 2024//
TI  - Production of the X(4014) as the Spin-2 Partner of X(3872) in e + e – Collisions
T2  - Chin. Phys. Lett.
JO  - Chinese Physics Letters
SP  - 031301
EP  - 7pp
VL  - 41
IS  - 3
PB  - IOP Publishing Ltd
AB  - In 2021, the Belle collaboration reported the first observation of a new structure in the psi(2S)gamma final state produced in the two-photon fusion process. In the hadronic molecule picture, this new structure can be associated with the shallow isoscalar D*D* bound state and as such is an excellent candidate for the spin-2 partner of the X(3872) with the quantum numbers J(PC) = 2(++) conventionally named X-2. In this work we evaluate the electronic width of this new state and argue that its nature is sensitive to its total width, the experimental measurement currently available being unable to distinguish between different options. Our estimates demonstrate that the planned Super tau-Charm Facility offers a promising opportunity to search for and study this new state in the invariant mass distributions for the final states J/psi gamma and psi(2S)gamma.
SN  - 0256-307x
UR  - https://arxiv.org/abs/2312.05389
UR  - https://doi.org/10.1088/0256-307X/41/3/031301
DO  - 10.1088/0256-307X/41/3/031301
LA  - English
N1  - WOS:001189846900001
ID  - Shi_etal2024
ER  -