TY - JOUR
T1 - Process e+e- →ππX (3823) in the soft pion limit
AU - Voloshin, M. B.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/6/23
Y1 - 2015/6/23
N2 - The production of the resonance X(3823), identified as the charmonium D23 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.
AB - The production of the resonance X(3823), identified as the charmonium D23 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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U2 - 10.1103/PhysRevD.91.114029
DO - 10.1103/PhysRevD.91.114029
M3 - Article
AN - SCOPUS:84935431253
SN - 1550-7998
VL - 91
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 11
M1 - 114029
ER -