S wave hidden charm–hidden strangeness production in e+e annihilation

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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 languageEnglish (US)
Pages (from-to)175-177
Number of pages3
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - Aug 10 2018

Bibliographical note

Funding Information:
This work is supported in part by U.S. Department of Energy Grant No. DE-SC0011842 .

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