Measurement of CP-violating and mixing-induced observables in B0s→[phi] γ decays
A time-dependent analysis of the B-s(0) -> phi gamma decay rate is performed to determine the CP -violating observables S-phi gamma and C-phi gamma and the mixing-induced observable A(phi gamma)(Delta). The measurement is based on a sample of pp collision data recorded with the LHCb detector, cor...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
23 August 2019
|
| In: |
Physical review letters
Year: 2019, Jahrgang: 123, Heft: 8, Pages: 081802 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.081802 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.123.081802 Verlag: https://link.aps.org/doi/10.1103/PhysRevLett.123.081802 |
| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
| Zusammenfassung: | A time-dependent analysis of the B-s(0) -> phi gamma decay rate is performed to determine the CP -violating observables S-phi gamma and C-phi gamma and the mixing-induced observable A(phi gamma)(Delta). The measurement is based on a sample of pp collision data recorded with the LHCb detector, corresponding to an integrated luminosity of 3 fb(-1) at center-of-mass energies of 7 and 8 TeV. The measured values are S-phi gamma = 0.43 +/- 0.30 +/- 0.11, C-phi gamma = 0.11 +/- 0.29 +/- 0.11, and A(phi gamma)(Delta) = -0.67(-0.41)(+0.37) +/- 0.17, where the first uncertainty is statistical and the second systematic. This is the first measurement of the observables S and C in radiative B-s(0) decays. The results are consistent with the standard model predictions. |
|---|---|
| Beschreibung: | R. Aaij, S. Bachmann, D. Berninghoff, M. Borsato, S. Braun, P. d’Argent, M. Dziewiecki, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, H. Malygina, J. Marks, S. Neubert, A. Piucci, N. Skidmore, U. Uwer, J. van Tilburg, A. Zhelezov [und weitere] (LHCb Collaboration) Gesehen am 18.12.2019 im Text werden phi und gamma als griechische Zeichen dargestellt |
| Beschreibung: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.081802 |