Observation of an Excited B[± over c] Meson State with the ATLAS Detector
A search for excited states of the B[± over c] meson is performed using 4.9 fb[superscript −1] of 7 TeV and 19.2 fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/96375 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826214281442492417 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | A search for excited states of the B[± over c] meson is performed using 4.9 fb[superscript −1] of 7 TeV and 19.2 fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B[± over c] → J/ψπ[superscript ±]. The state appears in the m(B[± over c]π[superscript +]π[superscript −]) − m(B[± over c]) − 2m(π[superscript ±]) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842 ± 4 ± 5 MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B[± over c] meson, B[± over c](2S). |
| first_indexed | 2024-09-23T16:03:08Z |
| format | Article |
| id | mit-1721.1/96375 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:03:08Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/963752022-10-02T05:58:45Z Observation of an Excited B[± over c] Meson State with the ATLAS Detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A search for excited states of the B[± over c] meson is performed using 4.9 fb[superscript −1] of 7 TeV and 19.2 fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B[± over c] → J/ψπ[superscript ±]. The state appears in the m(B[± over c]π[superscript +]π[superscript −]) − m(B[± over c]) − 2m(π[superscript ±]) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842 ± 4 ± 5 MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B[± over c] meson, B[± over c](2S). United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2015-04-03T17:33:00Z 2015-04-03T17:33:00Z 2014-11 2014-07 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/96375 Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Observation of an Excited B[superscript ± subscript c] Meson State with the ATLAS Detector” Physical Review Letters 113, no. 21 (November 2014). © 2014 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.113.212004 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Taylor, Frank E. Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title | Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title_full | Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title_fullStr | Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title_full_unstemmed | Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title_short | Observation of an Excited B[± over c] Meson State with the ATLAS Detector |
| title_sort | observation of an excited b over c meson state with the atlas detector |
| url | http://hdl.handle.net/1721.1/96375 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke observationofanexcitedbovercmesonstatewiththeatlasdetector |