Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays
An amplitude analysis of the decay Λ[subscript b][superscript 0]→ D[superscript 0]pπ[superscript −] is performed in the part of the phase space containing resonances in the D[superscript 0][subscript p] channel. The study is based on a data sample corresponding to an integrated luminosity of 3.0 fb[...
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| Format: | Article |
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Springer Nature
2018
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| Online Access: | http://hdl.handle.net/1721.1/119018 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1826189990961348608 |
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| author | Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author_sort | Boettcher, Thomas Julian |
| collection | MIT |
| description | An amplitude analysis of the decay Λ[subscript b][superscript 0]→ D[superscript 0]pπ[superscript −] is performed in the part of the phase space containing resonances in the D[superscript 0][subscript p] channel. The study is based on a data sample corresponding to an integrated luminosity of 3.0 fb[superscript −1] of pp collisions recorded by the LHCb experiment. The spectrum of excited Λ[subscript c][superscript +] states that decay into D[superscript 0][subscript p] is studied. The masses, widths and quantum numbers of the Λ[subscript c](2880)[superscript +] and Λ[subscript c](2940)[superscript +] resonances are measured. The constraints on the spin and parity for the Λ[subscript c](2940)[superscript +] state are obtained for the first time. A near-threshold enhancement in the D[superscript 0][subscript p] amplitude is investigated and found to be consistent with a new resonance, denoted the Λ[subscript c](2860)[superscript +], of spin 3/2 and positive parity. Keywords: B physics, Charm physics, Hadron-Hadron scattering (experiments), QCD, Spectroscopy |
| first_indexed | 2024-09-23T08:33:21Z |
| format | Article |
| id | mit-1721.1/119018 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:33:21Z |
| publishDate | 2018 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | mit-1721.1/1190182022-09-30T09:34:14Z Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Boettcher, Thomas Julian Ilten, Philip J Williams, Michael An amplitude analysis of the decay Λ[subscript b][superscript 0]→ D[superscript 0]pπ[superscript −] is performed in the part of the phase space containing resonances in the D[superscript 0][subscript p] channel. The study is based on a data sample corresponding to an integrated luminosity of 3.0 fb[superscript −1] of pp collisions recorded by the LHCb experiment. The spectrum of excited Λ[subscript c][superscript +] states that decay into D[superscript 0][subscript p] is studied. The masses, widths and quantum numbers of the Λ[subscript c](2880)[superscript +] and Λ[subscript c](2940)[superscript +] resonances are measured. The constraints on the spin and parity for the Λ[subscript c](2940)[superscript +] state are obtained for the first time. A near-threshold enhancement in the D[superscript 0][subscript p] amplitude is investigated and found to be consistent with a new resonance, denoted the Λ[subscript c](2860)[superscript +], of spin 3/2 and positive parity. Keywords: B physics, Charm physics, Hadron-Hadron scattering (experiments), QCD, Spectroscopy National Science Foundation (U.S.) 2018-11-14T19:56:24Z 2018-11-14T19:56:24Z 2017-05 2018-10-10T13:20:45Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/119018 The LHCb collaboration, et al. “Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays.” Journal of High Energy Physics, vol. 2017, no. 5, May 2017. © 2017 The Authors. https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 http://dx.doi.org/10.1007/JHEP05(2017)030 Journal of High Energy Physics Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer Nature Springer |
| spellingShingle | Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title | Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title_full | Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title_fullStr | Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title_full_unstemmed | Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title_short | Study of the D[superscript 0][subscript p] Amplitude in Λ[subscript b][superscript 0] → D[superscript 0] Pπ[superscript −] Decays |
| title_sort | study of the d superscript 0 subscript p amplitude in λ subscript b superscript 0 d superscript 0 pπ superscript decays |
| url | http://hdl.handle.net/1721.1/119018 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
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