Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -]
In a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] collider we study the rare decays B→K[superscript (*)ℓ+ℓ-], where [superscript ℓ+ℓ-] is either e[superscript +]e[superscript -] or μ[superscript +]μ[superscript -]. We rep...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/74179 |
| _version_ | 1826199478176055296 |
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| author | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | In a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] collider we study the rare decays B→K[superscript (*)ℓ+ℓ-], where [superscript ℓ+ℓ-] is either e[superscript +]e[superscript -] or μ[superscript +]μ[superscript -]. We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present CP and lepton-flavor asymmetries for dilepton masses below and above the J/ψ resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments. |
| first_indexed | 2024-09-23T11:20:31Z |
| format | Article |
| id | mit-1721.1/74179 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:20:31Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/741792023-02-26T07:29:13Z Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella In a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] collider we study the rare decays B→K[superscript (*)ℓ+ℓ-], where [superscript ℓ+ℓ-] is either e[superscript +]e[superscript -] or μ[superscript +]μ[superscript -]. We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present CP and lepton-flavor asymmetries for dilepton masses below and above the J/ψ resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments. 2012-10-22T15:18:20Z 2012-10-22T15:18:20Z 2012-08 2012-04 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/74179 Lees, J. et al. “Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B→[superscript (*)]ℓ[superscript +]ℓ[superscript -].” Physical Review D 86.3 (2012). © 2012 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.86.032012 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title | Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title_full | Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title_fullStr | Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title_full_unstemmed | Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title_short | Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -] |
| title_sort | measurement of branching fractions and rate asymmetries in the rare decays b k superscript l superscript l superscript |
| url | http://hdl.handle.net/1721.1/74179 |
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