Abstract
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) |
|---|---|
| Pages (from-to) | 175-177 |
| Number of pages | 3 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 783 |
| DOIs | |
| State | Published - Aug 10 2018 |
Bibliographical note
Publisher Copyright:© 2018 The Author