Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±)
We report a measurement of the ratio of branching fractions of the decays B±→J/ψπ± and B±→J/ψK± using the CDF II detector at the Fermilab Tevatron Collider. The signal from the Cabbibo-suppressed B±→J/ψπ± decay is separated from B±→J/ψK± using the B±→J/ψK± invariant mass distribution and the kinemat...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1797052844269895680 |
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| author | Abulencia, A 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 Badgett, W Barbaro-Galtieri, A |
| author_facet | Abulencia, A 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 Badgett, W Barbaro-Galtieri, A |
| author_sort | Abulencia, A |
| collection | OXFORD |
| description | We report a measurement of the ratio of branching fractions of the decays B±→J/ψπ± and B±→J/ψK± using the CDF II detector at the Fermilab Tevatron Collider. The signal from the Cabbibo-suppressed B±→J/ψπ± decay is separated from B±→J/ψK± using the B±→J/ψK± invariant mass distribution and the kinematical differences of the hadron track in the two decay modes. From a sample of 220pb-1 of pp̄ collisions at s=1.96TeV, we observe 91±15 B±→J/ψπ± events together with 1883±34 B±→J/ψK± events. The ratio of branching fractions is found to be B(B±→J/ψπ±)/ B(B±→J/ψK±)=(4.86±0.82(stat)±0.15(syst))%. © 2009 The American Physical Society. |
| first_indexed | 2024-03-06T18:36:22Z |
| format | Journal article |
| id | oxford-uuid:0b62fc0b-e76c-4246-a675-34622281d4e6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:36:22Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:0b62fc0b-e76c-4246-a675-34622281d4e62022-03-26T09:29:05ZMeasurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0b62fc0b-e76c-4246-a675-34622281d4e6EnglishSymplectic Elements at Oxford2009Abulencia, AAdelman, JAffolder, TAkimoto, TAlbrow, MGAmbrose, DAmerio, SAmidei, DAnastassov, AAnikeev, KAnnovi, AAntos, JAoki, MApollinari, GArguin, JArisawa, TArtikov, AAshmanskas, WAttal, AAzfar, FAzzi-Bacchetta, PAzzurri, PBacchetta, NBadgett, WBarbaro-Galtieri, AWe report a measurement of the ratio of branching fractions of the decays B±→J/ψπ± and B±→J/ψK± using the CDF II detector at the Fermilab Tevatron Collider. The signal from the Cabbibo-suppressed B±→J/ψπ± decay is separated from B±→J/ψK± using the B±→J/ψK± invariant mass distribution and the kinematical differences of the hadron track in the two decay modes. From a sample of 220pb-1 of pp̄ collisions at s=1.96TeV, we observe 91±15 B±→J/ψπ± events together with 1883±34 B±→J/ψK± events. The ratio of branching fractions is found to be B(B±→J/ψπ±)/ B(B±→J/ψK±)=(4.86±0.82(stat)±0.15(syst))%. © 2009 The American Physical Society. |
| spellingShingle | Abulencia, A 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 Badgett, W Barbaro-Galtieri, A Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title | Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title_full | Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title_fullStr | Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title_full_unstemmed | Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title_short | Measurement of the ratio of branching fractions B(B±→J/ ψπ±)/B(B±→J/ψK±) |
| title_sort | measurement of the ratio of branching fractions b b j ψπ b b j ψk |
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