Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -]
We present a measurement of form-factor-independent angular observables in the decay B[superscript 0] → K[superscript *](892)[superscript 0]μ[superscript +]μ[superscript −]. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected by the...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/84929 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1826193744734453760 |
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| author | Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Williams, Michael |
| author_sort | Williams, Michael |
| collection | MIT |
| description | We present a measurement of form-factor-independent angular observables in the decay B[superscript 0] → K[superscript *](892)[superscript 0]μ[superscript +]μ[superscript −]. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q[superscript 2] in the range 0.1 < q[superscript 2] < 19.0 GeV[superscript 2]/c[superscript 4]. Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q[superscript 2] bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%. |
| first_indexed | 2024-09-23T09:44:14Z |
| format | Article |
| id | mit-1721.1/84929 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:44:14Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/849292022-09-30T16:30:56Z Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] Williams, Michael Massachusetts Institute of Technology. Department of Physics Williams, Michael We present a measurement of form-factor-independent angular observables in the decay B[superscript 0] → K[superscript *](892)[superscript 0]μ[superscript +]μ[superscript −]. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q[superscript 2] in the range 0.1 < q[superscript 2] < 19.0 GeV[superscript 2]/c[superscript 4]. Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q[superscript 2] bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%. National Science Foundation (U.S.) 2014-02-10T18:53:32Z 2014-02-10T18:53:32Z 2013-11 2013-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/84929 Aaij, R., B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. “Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -].” Physical Review Letters 111, no. 19 (November 2013). © 2013 CERN, for the LHCb collaboration https://orcid.org/0000-0001-8285-3346 en_US http://dx.doi.org/10.1103/PhysRevLett.111.191801 Physical Review Letters 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 American Physical Society |
| spellingShingle | Williams, Michael Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title | Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title_full | Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title_fullStr | Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title_full_unstemmed | Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title_short | Measurement of Form-Factor-Independent Observables in the Decay B[ superscript 0] → K[superscript *0]μ[superscript +]μ[superscript -] |
| title_sort | measurement of form factor independent observables in the decay b superscript 0 k superscript 0 μ superscript μ superscript |
| url | http://hdl.handle.net/1721.1/84929 https://orcid.org/0000-0001-8285-3346 |
| work_keys_str_mv | AT williamsmichael measurementofformfactorindependentobservablesinthedecaybsuperscript0ksuperscript0msuperscriptmsuperscript |