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Search for the Z_{1}(4050)^{+} and Z_{2}(4250)^{+} states in B[over ¯]^{0}→χ_{c1}K^{-}π^{+} and B^{+}→χ_{c1}K_{S}^{0}π^{+}
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BABAR Collaboration (Including: Gershon, T. J., Harrison, P. F., Latham, Thomas and Puccio, E. M. T.). (2012) Search for the Z_{1}(4050)^{+} and Z_{2}(4250)^{+} states in B[over ¯]^{0}→χ_{c1}K^{-}π^{+} and B^{+}→χ_{c1}K_{S}^{0}π^{+}. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 85 (Number 5). Article number 052003. doi:10.1103/PhysRevD.85.052003
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Official URL: http://dx.doi.org/10.1103/PhysRevD.85.052003
Abstract
We search for the Z(1)(4050)(+) and Z(2)(4250)(+) states, reported by the Belle Collaboration, decaying to chi(c1)pi(+) in the decays (B) over bar (0) -> chi K-c1(-)pi(+) and B+ -> chi K-c1(S)0 pi(+) where chi(c1) -> J/psi gamma. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e(+)e(-) collider operating at center-of-mass energy 10.58 GeV, and correspond to an integrated luminosity of 429 fb(-1). In this analysis, we model the background-subtracted, efficiency-corrected chi(c1)pi(+) mass distribution using the K pi mass distribution and the corresponding normalized K pi Legendre-polynomial moments, and then test the need for the inclusion of resonant structures in the description of the chi(c1)pi(+) mass distribution. No evidence is found for the Z(1)(4050)(+) and Z(2)(4250)(+) resonances, and 90% confidence level upper limits on the branching fractions are reported for the corresponding B-meson decay modes.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | March 2012 | ||||
| Dates: |
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| Volume: | Volume 85 | ||||
| Number: | Number 5 | ||||
| Page Range: | Article number 052003 | ||||
| DOI: | 10.1103/PhysRevD.85.052003 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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