Sneha Malde

Abstract:

© 2016 Equation (5) contained an error; the correct expression is: (5) Yi=HK3π(Ki+(rDK3π)2K−i−2rDK3πKiK−iRK3π[cicos⁡δDK3π−sisin⁡δDK3π]). This correction leads to changes in the results and associated correlations for the fit to the CLEO-c observables reported in Tables 6 and 7, respectively. The reduced χ2 of this fit is 29.5/33. Changes are also observed in the Δχ2 scans presented in Fig. 3. When performing an updated global fit to the CLEO-c and LHCb observables a reduced χ2 of 33.5/36 is obtained. Changes occur to the values reported in Tables 9 and 10, and the scans presented in Fig. 5. In addition a typographical error was introduced into Eq. (1). The correct expression is(1)RK3πe−iδDK3π=∫AK−π+π+π−⁎(x)AK+π−π+π−(x)dxAK−π+π+π−AK+π−π+π−. The results presented in the paper are unaffected by this error.

Abstract:

A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B+ → DK+, B0 → DK∗0, B0 → DK+π− and B+ → DK+π+π− tree-level decays. In addition, results from a time-dependent analysis of Bs0 → Ds∓K± decays are included. The combination yields γ = (72. 2− 7.3+ 6.8)°, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be γ ∈ [55.9, 85.2]°. A second combination is investigated, also including measurements from B+ → Dπ+ and B+ → Dπ+π−π+ decays, which yields compatible results.

Abstract:

Measurements of the differential branching fraction and angular moments of the decay $B^0 \to K^+ \pi^- \mu^+ \mu^-$ in the $K^*_{0,2}(1430)^0$ in the $K^+\pi^-$ invariant mass range $1330

Abstract:

The CP violation observables S and C in the decay channel B⁰ → D⁺ D⁻ are determined from a sample of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 3 fb^-1. The observable S describes CP violation in the interference between mixing and the decay amplitude, and C parametrizes direct CP violation in the decay. The following values are obtained from a flavour-tagged, decay-time-dependent analysis:

S = -0.54+0:17-0:16 (stat) ± 0:05 (syst) ;

C = 0:26+0:18-0:17 (stat) ± 0:02 (syst) :

These values constrain higher-order Standard Model corrections to be small

Abstract:

A search is made for the highly-suppressed B meson decays B+ → K+K+π- and B+ → π+π+K- using a data sample corresponding to an integrated luminosity of 3.0 fb^-1 collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. No evidence is found for the decays, and upper limits at 90% confidence level are determined to be B(B+ → K+K+π-) < 1.1 X 10^-8 and B+ → π+π+K-) < 4.6 X 10^-8.