Pionic transitions from X(3872) to chi_{cJ}

M.B. Voloshin; S. Dubynskiy

arxiv: 0709.4474 · v2 · submitted 2007-09-27 · ✦ hep-ph

Pionic transitions from X(3872) to chi_(cJ)

S. Dubynskiy , M.B. Voloshin This is my paper

classification ✦ hep-ph

keywords statetransitionscharmoniumresonancestatesconsiderdependdifferent

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We consider transitions from the resonance X(3872) to the chi_{cJ} states of charmonium with emission of one or two pions as a means of studying the structure of the X resonance. We find that the relative rates for these transitions to the final states with different J significantly depend on whether the initial state is a pure charmonium state or a four-quark/molecular state.

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First evidence of $X(3872)\to\pi^0\chi_{c0}(1P)$ and search for $X(3915)\to\pi^0\chi_{c1}(1P)$
hep-ex 2026-06 conditional novelty 7.0

First evidence reported for X(3872)→π⁰χ_c0 decay at 3.4σ, with branching fraction ratio 2.3 relative to π⁺π⁻J/ψ, upper limits on other modes, and no signal for X(3915)→π⁰χ_c1.