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Tagged time-dependent angular analysis of B0s→J/ψϕ decays with the 2010 LHCb data
(13th International Conference on B-Physics at Hadron Machines, Amsterdam, 4-8 of April 2011, 2011-04)
The interference between B0s decays to Jψϕ either directly or via B0s−B¯0s oscillation gives rise to a CP violating phase ϕJ/ψϕs. In the Standard Model, this phase is approximately -2βs, where βs = arg ...
Optimization and calibration of the same-side kaon tagging algorithm using hadronic B0s decays in 2011 data
(Hadron Collider Physics Symposium, Kyoto, 12-16 of November 2012, 2012-11)
We report on the optimization and calibration of the same-side kaon tagging algorithm using the decay B0s→D−π+s with 1.0~fb−1 of data from the LHCb 2011 physics run. After a data-driven optimization and ...
Tagged time-dependent angular analysis of Bs→J/ψϕ decays with 337~pb−1 at LHCb
(25th International Symposium on Lepton Photon Interactions at High Energies, Mumbai, 22-27 of August 2011, 2011-08)
The interference between Bs decays to J/ψϕ either directly or via Bs−B¯¯¯¯s oscillation gives rise to a CP violating phase ϕJψϕs. Using a sample of 8276±94 Bs→J/ψϕ events extracted from 337~pb−1 of pp ...
Time Alignment and Calibration of the LHCb Calorimeter
(LHCb Conference Proceedings, Geneva, 2010, 2010)
Measurement of the ratio of branching fractions B(Bd→K∗0γ)/B(Bs→ϕγ) with the LHCb experiment at s√=7~TeV
(25th International Symposium on Lepton Photon Interactions at High Energies, Mumbai, 22-27 of August 2011, 2011-08)
The ratio of branching ratios of the radiative B decays Bd→K∗0γ and Bs→ϕγ has been measured using 340.1~pb−1 of \emph{pp} collisions at a centre of mass energy of s√=7~TeV taken with the LHCb detector. ...
Flavour Tagging at LHCb
(Physics at LHC, Vancouver, 4-9 of June 2012, 2012-06)
The identification of the flavour of reconstructed Bd and Bs mesons at production is necessary for the measurements of oscillations and time-dependent CP asymmetries. The calibration and performance of ...
Integrated test environment for a part of the LHCb calorimeter
(Topical Workshop on Electronics for Particle Physics, Paris, 21-25 of September 2009, 2009-09)
An integrated test environment for the data acquisition
electronics of the Scintillator Pad Detector (SPD) from the
calorimeter of the LHCb experiment is presented. It allows to
test ...
A BiCMOS discriminator interface for the SPD
(6th Workshop on Electronics for LHC Experiments, Krakow, 11-15 of September 2000, 2000-09)
A prototype chip for the analogue readout of the SPD
in the LHCb Calorimeter is presented. The chip has been
designed using the 0.8mm-BiCMOS technology of AMS
and optimised for minimum size and ...
The Front End Electronics of the Scintillator Pad Detector of the LHCb Calorimeter
(Twelfth Workshop on Electronics for LHC and Future Experiments, Valencia, 25-29 of September 2006, 2006-09)
In this paper the Front End electronics of the Scintillator Pad Detector (SPD) is outlined. The SPD is a sub-system of the Calorimeter of the LHCb experiment designed to discriminate between charged and ...