Threshold effect and π^\pm ψ(2S) peak

Abstract

A resonance-like structure in the ${\pi }^{\pm }\psi (2S)$ mass spectrum arising in $B\to K{\pi }^{\pm }\psi (2S)$ has recently been reported. It is noted that the mass of this structure, $4433\pm 4\pm 1$ MeV, is not far from the threshold for production of $D^{\ast }{\bar{D}}_1(2420)$. A proposed mechanism for production of this state is suggested, and tests are suggested.

4 pages, 1 figure. To be submitted to Phys. Rev. D (Brief Reports). Additional text, acknowledgment, references; note added on other work

References in corpus (3)

• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• The Charged Z(4433): Towards a New Spectroscopy
• $Z^{+}(4430)$ as a resonance in the $D_1(D_1^{\prime })D^{\ast }$ channel

Cited by in corpus (9)

• Is X(3872) {\sl Really} a Molecular State?
• Is Z^+(4430) a loosely bound molecular state?
• $Z^{+}(4430)$ as a $D_1^{\prime }{D}^{\ast }$ ($D_1{D}^{\ast }$) molecular state
• Search for tetraquark candidate Z(4430) in meson photoproduction
• A Uniform Description of the States Recently Observed at B-factories
• Partners of Z(4430) and Productions in B Decays
• The two-body open charm decays of $Z^{+}(4430)$
• Is the Z^+(4430) a radially excited state of D_s?
• Exotic mesons: status and future