Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector
We present a measurement of the CP-violating parameter βsJ/ψ using approximately 6500 Bs0→J/ψ decays reconstructed with the CDF II detector in a sample of pp̄ collisions at √s=1.96TeV corresponding to 5.2fb -1 integrated luminosity produced by the Tevatron collider at Fermilab. We find the CP-violat...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1826305364064206848 |
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| author | Aaltonen, T Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F |
| author_facet | Aaltonen, T Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We present a measurement of the CP-violating parameter βsJ/ψ using approximately 6500 Bs0→J/ψ decays reconstructed with the CDF II detector in a sample of pp̄ collisions at √s=1.96TeV corresponding to 5.2fb -1 integrated luminosity produced by the Tevatron collider at Fermilab. We find the CP-violating phase to be within the range βsJ/ψ [0.02,0.52] [1.08,1.55] at 68% confidence level where the coverage property of the quoted interval is guaranteed using a frequentist statistical analysis. This result is in agreement with the standard model expectation at the level of about one Gaussian standard deviation. We consider the inclusion of a potential S-wave contribution to the Bs0→J/ψK +K - final state which is found to be negligible over the mass interval 1.009 |
| first_indexed | 2024-03-07T06:31:46Z |
| format | Journal article |
| id | oxford-uuid:f63759aa-2e01-4181-9d2d-4df1bfb126e0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:31:46Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:f63759aa-2e01-4181-9d2d-4df1bfb126e02022-03-27T12:33:36ZMeasurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f63759aa-2e01-4181-9d2d-4df1bfb126e0EnglishSymplectic Elements at Oxford2012Aaltonen, TAlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GAppel, JArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBae, TBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBedeschi, FWe present a measurement of the CP-violating parameter βsJ/ψ using approximately 6500 Bs0→J/ψ decays reconstructed with the CDF II detector in a sample of pp̄ collisions at √s=1.96TeV corresponding to 5.2fb -1 integrated luminosity produced by the Tevatron collider at Fermilab. We find the CP-violating phase to be within the range βsJ/ψ [0.02,0.52] [1.08,1.55] at 68% confidence level where the coverage property of the quoted interval is guaranteed using a frequentist statistical analysis. This result is in agreement with the standard model expectation at the level of about one Gaussian standard deviation. We consider the inclusion of a potential S-wave contribution to the Bs0→J/ψK +K - final state which is found to be negligible over the mass interval 1.009 |
| spellingShingle | Aaltonen, T Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title | Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title_full | Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title_fullStr | Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title_full_unstemmed | Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title_short | Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector |
| title_sort | measurement of the cp violating phase βsj ψ in bs0 j ψ decays with the cdf ii detector |
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