Amplitude analysis of B±→[pi]± K+K− decays
The first amplitude analysis of the $B^\pm \to \pi^\pm K^+ K^-$ decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb$^{-1}$ of $pp$ collisions recorded in 2011 and 2012 with the LHCb detector. The data is found to be best described by a coherent sum of five re...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
6 December 2019
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| In: |
Physical review letters
Year: 2019, Jahrgang: 123, Heft: 23 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.231802 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.123.231802 Verlag, lizenzpflichtig, Volltext: http://arxiv.org/abs/1905.09244 
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| Verfasserangaben: | LHCb Collaboration* |
MARC
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| 245 | 1 | 0 | |a Amplitude analysis of B±→[pi]± K+K− decays |c LHCb Collaboration* |
| 246 | 3 | 0 | |a π |
| 246 | 3 | 3 | |a Amplitude analysis of B plus minus into [pi] plus minus K plus K minus decays |
| 264 | 1 | |c 6 December 2019 | |
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| 500 | |a Gesehen am 19.03.2020 | ||
| 500 | |a Im Titel sind "±", "plus" und "minus" hochgestellt | ||
| 500 | |a *LHCb Collaboration: R. Aaij [und 844 weitere Personen] | ||
| 520 | |a The first amplitude analysis of the $B^\pm \to \pi^\pm K^+ K^-$ decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb$^{-1}$ of $pp$ collisions recorded in 2011 and 2012 with the LHCb detector. The data is found to be best described by a coherent sum of five resonant structures plus a nonresonant component and a contribution from $\pi\pi \leftrightarrow KK$ $S$-wave rescattering. The dominant contributions in the $\pi^\pm K^\mp$ and $K^{+}K^{-}$ systems are the nonresonant and the $B^\pm \to \rho(1450)^{0}\pi^{\pm}$ amplitudes, respectively, with fit fractions around $30\%$. For the rescattering contribution, a sizeable fit fraction is observed. This component has the largest $CP$ asymmetry reported to date for a single amplitude of $(-66 \pm 4 \pm 2)\%$, where the first uncertainty is statistical and the second systematic. No significant $CP$ violation is observed in the other contributions. | ||
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