Charm inputs from CLEO-c for γ measurements
Proceedings of Science (2011)
Abstract:
The measurements of D0 strong phase parameters in quantum correlated ψ(3770) → D0D̄0 decays by the CLEO collaboration are presented here. These measurements can be used as inputs to model independent measurements of the unitary angle γ. Measurements of strong phase difference parameters in the decays D0 → K- π+, D0 → K- π+ π0, D0 → K- π+ π+ π-, D0 → KSK - π+, D0 → KSπ+π -, and D0 → KSK+K- decays are described along with their impact on future measurements of 7. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-Share Alike Licence.Lifetime and mixing parameters of neutral D mesons and neutral B hadrons in experimental particle physics
Proceedings of the 6th International Workshop on the CKM Unitarity Triangle, CKM 2010 (2011)
Abstract:
A review of recent experimental measurements of the lifetime and mixing parameters of neutral D and B hadrons is presented. In particular, focus is given to measurements of D mixing and the ΛB lifetime.First observation of the decay B̄s 0→D0K×0 and a measurement of the ratio of branching fractions B(B̄s 0→D0K×0) B(B̄0→D0ρ0)
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 706:1 (2011) 32-39
Abstract:
The first observation of the decay B̄s 0→D0K×0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb-1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The B̄s 0→D0K×0 branching fraction is measured relative to that of B̄0→D0 ρ0: B(B̄s 0→D0K×0) B(B̄0→D0ρ0)=1.48±0 .34±0.15±0.12, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B0 and Bs0 hadronisation fractions. © 2011 CERN.Search for high-mass resonances decaying into ZZ in p$\bar{p}$ collisions at $\sqrt{s}=1.96$\,TeV
ArXiv 1111.3432 (2011)
Abstract:
We search for high-mass resonances decaying into Z boson pairs using data corresponding to 6 fb^-1 collected by the CDF experiment in p\bar{p} collisions at sqrt{s}=1.96 TeV. The search is performed in three distinct final states: ZZ --> l^+l^-l^+l^-, ZZ --> l^+l^-\nu\nu, and ZZ --> l^+l^-jj. For a Randall-Sundrum graviton G*, the 95% CL upper limits on the production cross section times branching ratio to ZZ, sigma(p\bar{p} --> G^* --> ZZ), vary between 0.26 pb and 0.045 pb in the mass range 300 < M_{G*} < 1000 GeV/c^2.Determination of fs /fd for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction
Physical Review Letters 107:21 (2011)