Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2]
The resonant substructure of B_{s}^{0}→D[over ¯]^{0}K^{-}π^{+} decays is studied using a data sample corresponding to an integrated luminosity of 3.0 fb^{-1} of pp collision data recorded by the LHCb detector. An excess at m(D[over ¯]^{0}K^{-})≈2.86 GeV/c^{2} is found to be an admixture of spin-1...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2014
|
| Online Access: | http://hdl.handle.net/1721.1/92293 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
| _version_ | 1826217497753288704 |
|---|---|
| author | LHCb collaboration Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics LHCb collaboration Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author_sort | LHCb collaboration |
| collection | MIT |
| description | The resonant substructure of B_{s}^{0}→D[over ¯]^{0}K^{-}π^{+} decays is studied using a data sample corresponding to an integrated luminosity of 3.0 fb^{-1} of pp collision data recorded by the LHCb detector. An excess at m(D[over ¯]^{0}K^{-})≈2.86 GeV/c^{2} is found to be an admixture of spin-1 and spin-3 resonances. Therefore, the D_{sJ}^{*}(2860)^{-} state previously observed in inclusive e^{+}e^{-}→D[over ¯]^{0}K^{-}X and pp→D[over ¯]^{0}K^{-}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 D_{s2}^{*}(2573)^{-} meson are measured, giving the most precise determinations to date. |
| first_indexed | 2024-09-23T17:04:36Z |
| format | Article |
| id | mit-1721.1/92293 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:04:36Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/922932023-02-26T11:23:15Z Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] Observation of Overlapping Spin-1 and Spin-3 D¯0K− Resonances at Mass 2.86 GeV/c2 LHCb collaboration Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, M. The resonant substructure of B_{s}^{0}→D[over ¯]^{0}K^{-}π^{+} decays is studied using a data sample corresponding to an integrated luminosity of 3.0 fb^{-1} of pp collision data recorded by the LHCb detector. An excess at m(D[over ¯]^{0}K^{-})≈2.86 GeV/c^{2} is found to be an admixture of spin-1 and spin-3 resonances. Therefore, the D_{sJ}^{*}(2860)^{-} state previously observed in inclusive e^{+}e^{-}→D[over ¯]^{0}K^{-}X and pp→D[over ¯]^{0}K^{-}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 D_{s2}^{*}(2573)^{-} meson are measured, giving the most precise determinations to date. National Science Foundation (U.S.) United States. Dept. of Energy 2014-12-12T16:15:34Z 2014-12-12T16:15:34Z 2014-10 2014-10-14T18:29:14Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/92293 Aaij. R. et al. (LHCb Collaboration) "Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2]." Phys. Rev. Lett. 113, 162001. https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 en http://dx.doi.org/10.1103/PhysRevLett.113.162001 Physical Review Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0 CERN application/pdf American Physical Society American Physical Society |
| spellingShingle | LHCb collaboration Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title | Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title_full | Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title_fullStr | Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title_full_unstemmed | Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title_short | Observation of Overlapping Spin-1 and Spin-3 D[overbar][superscript 0]K[superscript -] Resonances at Mass 2.86 GeV/c[superscript 2] |
| title_sort | observation of overlapping spin 1 and spin 3 d overbar superscript 0 k superscript resonances at mass 2 86 gev c superscript 2 |
| url | http://hdl.handle.net/1721.1/92293 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
| work_keys_str_mv | AT lhcbcollaboration observationofoverlappingspin1andspin3doverbarsuperscript0ksuperscriptresonancesatmass286gevcsuperscript2 AT countsianthomashunt observationofoverlappingspin1andspin3doverbarsuperscript0ksuperscriptresonancesatmass286gevcsuperscript2 AT iltenphilipj observationofoverlappingspin1andspin3doverbarsuperscript0ksuperscriptresonancesatmass286gevcsuperscript2 AT williamsmichael observationofoverlappingspin1andspin3doverbarsuperscript0ksuperscriptresonancesatmass286gevcsuperscript2 AT lhcbcollaboration observationofoverlappingspin1andspin3d0kresonancesatmass286gevc2 AT countsianthomashunt observationofoverlappingspin1andspin3d0kresonancesatmass286gevc2 AT iltenphilipj observationofoverlappingspin1andspin3d0kresonancesatmass286gevc2 AT williamsmichael observationofoverlappingspin1andspin3d0kresonancesatmass286gevc2 |