Observation of Overlapping Spin-1 and Spin-3 D ¯ 0 K − Resonances at Mass 2.86 GeV / c 2
Name
PhysRevLett.113.162001.pdf
Description
Published version
Size
681.31 KB
Format
Adobe PDF
Checksum (MD5)
8a4cf40e3f9b2f8f053bcb8940ca3f83
Author(s)
Williams, Michael
Date Issued
2014
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Aaij, R., et al. "Observation of Overlapping Spin-1 and Spin-3 (D)over-Bar(0)K(-)Resonances at Mass 2.86 Gev/C(2)." Physical Review Letters 113 16 (2014).
Version
Final published version
Abstract
© 2014 CERN, for the LHCb collaboration. The resonant substructure of Bs0→D¯0K-π+ decays is studied using a data sample corresponding to an integrated luminosity of 3.0fb-1 of pp collision data recorded by the LHCb detector. An excess at m(D¯0K-)≈2.86GeV/c2 is found to be an admixture of spin-1 and spin-3 resonances. Therefore, the DsJ∗(2860)- state previously observed in inclusive e+e-→D¯0K-X and pp→D¯0K-X processes consists of at least two particles. This is the first observation of a heavy flavored spin-3 resonance, and the first time that any spin-3 particle has been seen to be produced in B decays. The masses and widths of the new states and of the Ds2∗(2573)- meson are measured, giving the most precise determinations to date.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution 3.0
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DOI of Published Version
https://doi.org/10.1103/PHYSREVLETT.113.162001
