Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays
The CP -violating charge asymmetry in B[superscript ±]→ϕK[superscript ±] decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb[superscript −1] collected by the LHCb experiment. The result is A[subscript CP](B[superscript...
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2014
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dmit-1721.1-875732021-09-10T15:13:19Z Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays Williams, Michael Massachusetts Institute of Technology. Department of Physics Williams, Michael The CP -violating charge asymmetry in B[superscript ±]→ϕK[superscript ±] decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb[superscript −1] collected by the LHCb experiment. The result is A[subscript CP](B[superscript ±]→ϕK[superscript ±]) = 0.022±0.021±0.009, where the first uncertainty is statistical and the second systematic. In addition, a search for the B[superscript ±]→ϕπ[superscript ±] decay mode is performed, using the B[superscript ±]→ϕK[superscript ±] decay rate for normalization. An upper limit on the branching fraction B(B[superscript ±]→ϕπ[superscript ±]) <1.5×10−7 is set at 90% confidence level. National Science Foundation (U.S.) 2014-05-29T17:54:33Z 2014-05-29T17:54:33Z 2013-11 2013-11 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/87573 Aaij, R. et al. “Measurement of the Charge Asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays.” Physics Letters B 728 (January 2014): 85–94. https://orcid.org/0000-0001-8285-3346 en_US http://dx.doi.org/10.1016/j.physletb.2013.11.036 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier Elsevier |
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The CP -violating charge asymmetry in B[superscript ±]→ϕK[superscript ±] decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb[superscript −1] collected by the LHCb experiment. The result is A[subscript CP](B[superscript ±]→ϕK[superscript ±]) = 0.022±0.021±0.009, where the first uncertainty is statistical and the second systematic. In addition, a search for the B[superscript ±]→ϕπ[superscript ±] decay mode is performed, using the B[superscript ±]→ϕK[superscript ±] decay rate for normalization. An upper limit on the branching fraction B(B[superscript ±]→ϕπ[superscript ±]) <1.5×10−7 is set at 90% confidence level. |
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Massachusetts Institute of Technology. Department of Physics |
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Massachusetts Institute of Technology. Department of Physics Williams, Michael |
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Article |
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Williams, Michael |
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Williams, Michael Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| author_sort |
Williams, Michael |
| title |
Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| title_short |
Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| title_full |
Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| title_fullStr |
Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| title_full_unstemmed |
Measurement of the charge asymmetry in B[superscript ±]→ϕK[superscript ±] and search for B[superscript ±]→ϕπ[superscript ±] decays |
| title_sort |
measurement of the charge asymmetry in b[superscript ±]→ϕk[superscript ±] and search for b[superscript ±]→ϕπ[superscript ±] decays |
| publisher |
Elsevier |
| publishDate |
2014 |
| url |
http://hdl.handle.net/1721.1/87573 https://orcid.org/0000-0001-8285-3346 |
| work_keys_str_mv |
AT williamsmichael measurementofthechargeasymmetryinbsuperscriptphksuperscriptandsearchforbsuperscriptphpsuperscriptdecays |
| _version_ |
1737649296163995648 |