EPJ Web Conf.
Volume 218, 2019The 11th International Workshop on e+e− Collisions from Phi to Psi (PhiPsi 2017)
|Number of page(s)||6|
|Section||Hadron Spectroscopy and Meson Decays|
|Published online||18 October 2019|
X(3915) as a tensor D∗D¯∗ molecule
Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
2 Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya 25, 117218 Moscow, Russia
3 Forschungszentrum Jülich, Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, D-52425 Jülich, Germany
4 National Research Nuclear University MEPhI, 115409, Kashirskoe highway 31, Moscow, Russia
5 Moscow Institute of Physics and Technology, 141700 Institutsky lane 9, Dolgoprudny, Moscow Region, Russia
Published online: 18 October 2019
Two-photon decays of a tensor D∗D¯∗ molecule are studied and the suggested approach is applied to the X(3915) charmonium-like state under the assumption of the latter being a 2++ molecule — a spin partner of the X(3872). It is argued that the existing experimental data disfavour such an identification of this state. Therefore, it is suggested that either the X(3915) has a diﬀerent exotic nature or it has to be identified as a scalar.
© The Authors, published by EDP Sciences, 2019
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