Process of e⁺e⁻ → ππX (3823) in the soft pion

Voloshin, M. B.

doi:10.1103/PhysRevD.91.114029

Title: Process of e⁺e⁻ → ππX (3823) in the soft pion

Journal Article · Tue Jun 23 00:00:00 EDT 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.91.114029· OSTI ID:1186942

Voloshin, M. B.

The production of the resonance X(3823), identified as the charmonium ³D₂ state, in the process e⁺e⁻ → ππX(3823) has been recently reported by BESIII. Here it is pointed out that this process is fully described, up to one overall coupling constant, in the soft pion limit. An interpretation of the available and possible future data within the discussed theoretical framework may reveal new features of the charmoniumlike states. In particular, the observed relative yield for this process at different energies strongly suggests a very significant enhancement of the amplitude at the charmoniumlike peak near 4.36 GeV.

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0011842

OSTI ID:: 1186942

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Vol. 91 Journal Issue: 11; ISSN 1550-7998

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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References (9)

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