Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV
We report a measurement of the lifetime of the Λ[superscript 0][subscript b] baryon in decays to the Λ[superscript +][superscript c]π[superscript −] final state in a sample corresponding to 1.1 fb[superscript −1] collected in p[¯ over p] collisions at √s=1.96 TeV by the CDF II detector at the Tevatr...
| Main Authors: | , , , , |
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| Format: | Article |
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American Physical Society (APS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/117243 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1811072175532146688 |
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| author | Bauer, Gerry P Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Bauer, Gerry P Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. |
| author_sort | Bauer, Gerry P |
| collection | MIT |
| description | We report a measurement of the lifetime of the Λ[superscript 0][subscript b] baryon in decays to the Λ[superscript +][superscript c]π[superscript −] final state in a sample corresponding to 1.1 fb[superscript −1] collected in p[¯ over p] collisions at √s=1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λ[superscript 0][subscript b] events we measure τ(Λ[superscript 0][subscript b]) =1.401±0.046(stat)±0.035(syst) ps (corresponding to cτ(Λ[superscript 0][subscript b])=420.1±13.7(stat)±10.6(syst) μm, where c is the speed of light). The ratio of this result and the world average B[superscript 0] lifetime yields
τ(Λ[superscript 0][subscript b])/τ(B[superscript 0])=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. © 2010 American Physical Society |
| first_indexed | 2024-09-23T09:01:48Z |
| format | Article |
| id | mit-1721.1/117243 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:01:48Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1172432022-09-26T09:58:05Z Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV Bauer, Gerry P Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bauer, Gerry P Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. We report a measurement of the lifetime of the Λ[superscript 0][subscript b] baryon in decays to the Λ[superscript +][superscript c]π[superscript −] final state in a sample corresponding to 1.1 fb[superscript −1] collected in p[¯ over p] collisions at √s=1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λ[superscript 0][subscript b] events we measure τ(Λ[superscript 0][subscript b]) =1.401±0.046(stat)±0.035(syst) ps (corresponding to cτ(Λ[superscript 0][subscript b])=420.1±13.7(stat)±10.6(syst) μm, where c is the speed of light). The ratio of this result and the world average B[superscript 0] lifetime yields τ(Λ[superscript 0][subscript b])/τ(B[superscript 0])=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. © 2010 American Physical Society National Science Foundation (U.S.) United States. Department of Energy 2018-08-01T14:22:18Z 2018-08-01T14:22:18Z 2010-03 2009-12 2018-06-19T18:15:32Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/117243 Aaltonen, T., et al. “Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV.” Physical Review Letters, vol. 104, no. 10, Mar. 2010. ©2010 American Physical Society https://orcid.org/0000-0002-6047-4211 http://dx.doi.org/10.1103/PhysRevLett.104.102002 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) APS |
| spellingShingle | Bauer, Gerry P Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title | Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title_full | Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title_fullStr | Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title_full_unstemmed | Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title_short | Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV |
| title_sort | measurement of the λ superscript 0 subscript b lifetime in λ superscript 0 subscript b λ superscript subscript c π subscript decays in p ¯ over p collisions at √s 1 96 tev |
| url | http://hdl.handle.net/1721.1/117243 https://orcid.org/0000-0002-6047-4211 |
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