First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π-
The first observation of the decays B̄s0→Ds+K -π+π- and B̄0→ Ds+K-π+π- are reported using an integrated luminosity of 1.0 fb-1 recorded by the LHCb experiment. The branching fractions, normalized with respect to B̄s0→Ds+π -π+π- and B̄s0→Ds+K -π+π-, respectively, are measured to be B(B̄s0→Ds+K-π+π-)...
| Hoofdauteurs: | , , , , , , , , , , , , , , , , , , , , , |
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| Formaat: | Journal article |
| Gepubliceerd in: |
2012
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| _version_ | 1826342831808053248 |
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| author | Aaij, R Abellan Beteta, C Abellan Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Appleby, R Aquines Gutierrez, O Archilli, F Archilli, F |
| author_facet | Aaij, R Abellan Beteta, C Abellan Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Appleby, R Aquines Gutierrez, O Archilli, F Archilli, F |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | The first observation of the decays B̄s0→Ds+K -π+π- and B̄0→ Ds+K-π+π- are reported using an integrated luminosity of 1.0 fb-1 recorded by the LHCb experiment. The branching fractions, normalized with respect to B̄s0→Ds+π -π+π- and B̄s0→Ds+K -π+π-, respectively, are measured to be B(B̄s0→Ds+K-π+π-) B(B̄s0→Ds+π-π+π-)=(5. 2±0.5±0.3)×10-2 and B(B̄0→ Ds+K-π+π-)B(B̄s0→Ds+K -π+π-)=0.54±0.07±0.07, where the first uncertainty is statistical and the second is systematic. The B̄s0→Ds+K-π+π- decay is of particular interest as it can be used to measure the weak phase γ. First observation of the B̄s0→Ds1(2536)+π -, Ds1+→Ds+π-π+ decay is also presented, and its branching fraction relative to B̄s0→Ds+π -π+π- is found to be B(B̄s0→ Ds1(2536)+π-,Ds1+→Ds+π -π+)B(B̄s0→Ds+π -π+π-)=(4.0±1.0±0.4) ×10-3. © 2012 CERN. |
| first_indexed | 2024-03-07T02:57:57Z |
| format | Journal article |
| id | oxford-uuid:aff70ab4-928d-41d3-985b-c9e8c4b2bac0 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:57:57Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:aff70ab4-928d-41d3-985b-c9e8c4b2bac02022-03-27T03:53:06ZFirst observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π-Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:aff70ab4-928d-41d3-985b-c9e8c4b2bac0Symplectic Elements at Oxford2012Aaij, RAbellan Beteta, CAbellan Beteta, CAdametz, AAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GAlvarez Cartelle, PAlves, AAmato, SAmhis, YAnderlini, LAnderlini, LAnderson, JAppleby, RAquines Gutierrez, OArchilli, FArchilli, FThe first observation of the decays B̄s0→Ds+K -π+π- and B̄0→ Ds+K-π+π- are reported using an integrated luminosity of 1.0 fb-1 recorded by the LHCb experiment. The branching fractions, normalized with respect to B̄s0→Ds+π -π+π- and B̄s0→Ds+K -π+π-, respectively, are measured to be B(B̄s0→Ds+K-π+π-) B(B̄s0→Ds+π-π+π-)=(5. 2±0.5±0.3)×10-2 and B(B̄0→ Ds+K-π+π-)B(B̄s0→Ds+K -π+π-)=0.54±0.07±0.07, where the first uncertainty is statistical and the second is systematic. The B̄s0→Ds+K-π+π- decay is of particular interest as it can be used to measure the weak phase γ. First observation of the B̄s0→Ds1(2536)+π -, Ds1+→Ds+π-π+ decay is also presented, and its branching fraction relative to B̄s0→Ds+π -π+π- is found to be B(B̄s0→ Ds1(2536)+π-,Ds1+→Ds+π -π+)B(B̄s0→Ds+π -π+π-)=(4.0±1.0±0.4) ×10-3. © 2012 CERN. |
| spellingShingle | Aaij, R Abellan Beteta, C Abellan Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Appleby, R Aquines Gutierrez, O Archilli, F Archilli, F First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title | First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title_full | First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title_fullStr | First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title_full_unstemmed | First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title_short | First observation of the decays B̄(s)0→Ds+K -π+π- and B̄s0→D s1(2536)+π- |
| title_sort | first observation of the decays b s 0 ds k π π and bs0 d s1 2536 π |
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