It is suggested that the recently observed enhancement of the relative yield in e+e− annihilation of states with hidden charm and hidden strangeness above 4.43 GeV is associated with the S wave production of the charmed strange meson pairs Ds0(2317)D¯s ⁎+c.c. and Ds1 ⁎(2460)D¯s+c.c. This mechanism implies a pattern of breaking of the Heavy Quark Spin Symmetry (HQSS) that can be tested in the final channels such as ηc(1S)ϕ hc(1P)η hc(1P)η′ produced in the same energy range.
|Original language||English (US)|
|Number of pages||3|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Aug 10 2018|
Bibliographical noteFunding Information:
This work is supported in part by U.S. Department of Energy Grant No. DE-SC0011842 .