Measurement of the Bs0-B̄s0 oscillation frequency
We present the first precise measurement of the Bs0-B̄s0 oscillation frequency Δms. We use 1fb-1 of data from pp̄ collisions at s=1.96TeV collected with the CDF II detector at the Fermilab Tevatron. The sample contains signals of 3600 fully reconstructed hadronic Bs decays and 37000 partially recons...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2006
|
| _version_ | 1797100294029443072 |
|---|---|
| author | Abulencia, A Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Bachacou, H |
| author_facet | Abulencia, A Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Bachacou, H |
| author_sort | Abulencia, A |
| collection | OXFORD |
| description | We present the first precise measurement of the Bs0-B̄s0 oscillation frequency Δms. We use 1fb-1 of data from pp̄ collisions at s=1.96TeV collected with the CDF II detector at the Fermilab Tevatron. The sample contains signals of 3600 fully reconstructed hadronic Bs decays and 37000 partially reconstructed semileptonic Bs decays. We measure the probability as a function of proper decay time that the Bs decays with the same, or opposite, flavor as the flavor at production, and we find a signal consistent with Bs0-B̄s0 oscillations. The probability that random fluctuations could produce a comparable signal is 0.2%. Under the hypothesis that the signal is due to Bs0-B̄s0 oscillations, we measure Δms=17.31-0.18+0.33(stat)±0. 07(syst)ps-1 and determine |Vtd/Vts|=0.208-0.002+0.001(expt)-0.006+0.008(theor). © 2006 The American Physical Society. |
| first_indexed | 2024-03-07T05:35:32Z |
| format | Journal article |
| id | oxford-uuid:e3c41d93-14b9-422b-9883-9d3848277a9e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:35:32Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:e3c41d93-14b9-422b-9883-9d3848277a9e2022-03-27T10:11:39ZMeasurement of the Bs0-B̄s0 oscillation frequencyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e3c41d93-14b9-422b-9883-9d3848277a9eEnglishSymplectic Elements at Oxford2006Abulencia, AAcosta, DAdelman, JAffolder, TAkimoto, TAlbrow, MGAmbrose, DAmerio, SAmidei, DAnastassov, AAnikeev, KAnnovi, AAntos, JAoki, MApollinari, GArguin, JArisawa, TArtikov, AAshmanskas, WAttal, AAzfar, FAzzi-Bacchetta, PAzzurri, PBacchetta, NBachacou, HWe present the first precise measurement of the Bs0-B̄s0 oscillation frequency Δms. We use 1fb-1 of data from pp̄ collisions at s=1.96TeV collected with the CDF II detector at the Fermilab Tevatron. The sample contains signals of 3600 fully reconstructed hadronic Bs decays and 37000 partially reconstructed semileptonic Bs decays. We measure the probability as a function of proper decay time that the Bs decays with the same, or opposite, flavor as the flavor at production, and we find a signal consistent with Bs0-B̄s0 oscillations. The probability that random fluctuations could produce a comparable signal is 0.2%. Under the hypothesis that the signal is due to Bs0-B̄s0 oscillations, we measure Δms=17.31-0.18+0.33(stat)±0. 07(syst)ps-1 and determine |Vtd/Vts|=0.208-0.002+0.001(expt)-0.006+0.008(theor). © 2006 The American Physical Society. |
| spellingShingle | Abulencia, A Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Bachacou, H Measurement of the Bs0-B̄s0 oscillation frequency |
| title | Measurement of the Bs0-B̄s0 oscillation frequency |
| title_full | Measurement of the Bs0-B̄s0 oscillation frequency |
| title_fullStr | Measurement of the Bs0-B̄s0 oscillation frequency |
| title_full_unstemmed | Measurement of the Bs0-B̄s0 oscillation frequency |
| title_short | Measurement of the Bs0-B̄s0 oscillation frequency |
| title_sort | measurement of the bs0 bs0 oscillation frequency |
| work_keys_str_mv | AT abulenciaa measurementofthebs0bs0oscillationfrequency AT acostad measurementofthebs0bs0oscillationfrequency AT adelmanj measurementofthebs0bs0oscillationfrequency AT affoldert measurementofthebs0bs0oscillationfrequency AT akimotot measurementofthebs0bs0oscillationfrequency AT albrowmg measurementofthebs0bs0oscillationfrequency AT ambrosed measurementofthebs0bs0oscillationfrequency AT amerios measurementofthebs0bs0oscillationfrequency AT amideid measurementofthebs0bs0oscillationfrequency AT anastassova measurementofthebs0bs0oscillationfrequency AT anikeevk measurementofthebs0bs0oscillationfrequency AT annovia measurementofthebs0bs0oscillationfrequency AT antosj measurementofthebs0bs0oscillationfrequency AT aokim measurementofthebs0bs0oscillationfrequency AT apollinarig measurementofthebs0bs0oscillationfrequency AT arguinj measurementofthebs0bs0oscillationfrequency AT arisawat measurementofthebs0bs0oscillationfrequency AT artikova measurementofthebs0bs0oscillationfrequency AT ashmanskasw measurementofthebs0bs0oscillationfrequency AT attala measurementofthebs0bs0oscillationfrequency AT azfarf measurementofthebs0bs0oscillationfrequency AT azzibacchettap measurementofthebs0bs0oscillationfrequency AT azzurrip measurementofthebs0bs0oscillationfrequency AT bacchettan measurementofthebs0bs0oscillationfrequency AT bachacouh measurementofthebs0bs0oscillationfrequency |