Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV
We report a measurement of the lifetime of the Λb0 baryon in decays to the Λc+π- final state in a sample corresponding to 1.1fb-1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λb0 events we measure τ(Λb0)=1...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1826282875587133440 |
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| author | Aaltonen, T Adelman, J Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P |
| author_facet | Aaltonen, T Adelman, J Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We report a measurement of the lifetime of the Λb0 baryon in decays to the Λc+π- final state in a sample corresponding to 1.1fb-1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λb0 events we measure τ(Λb0)=1.401±0. 046(stat)±0.035(syst)ps (corresponding to cτ(Λb0)=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 B0 lifetime yields τ(Λb0)/τ(B0)=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. © 2010 The American Physical Society. |
| first_indexed | 2024-03-07T00:50:26Z |
| format | Journal article |
| id | oxford-uuid:86353b97-856a-4d90-a1f7-8981f5a9ac41 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:50:26Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:86353b97-856a-4d90-a1f7-8981f5a9ac412022-03-26T22:02:31ZMeasurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:86353b97-856a-4d90-a1f7-8981f5a9ac41EnglishSymplectic Elements at Oxford2010Aaltonen, TAdelman, JÁlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAttal, AAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauer, GBeauchemin, PWe report a measurement of the lifetime of the Λb0 baryon in decays to the Λc+π- final state in a sample corresponding to 1.1fb-1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λb0 events we measure τ(Λb0)=1.401±0. 046(stat)±0.035(syst)ps (corresponding to cτ(Λb0)=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 B0 lifetime yields τ(Λb0)/τ(B0)=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. © 2010 The American Physical Society. |
| spellingShingle | Aaltonen, T Adelman, J Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title | Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title_full | Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title_fullStr | Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title_full_unstemmed | Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title_short | Measurement of the Λb0 lifetime in Λb0→Λc+π - decays in pp̄ collisions at √s=1.96TeV |
| title_sort | measurement of the λb0 lifetime in λb0 λc π decays in pp collisions at √s 1 96tev |
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