345 research outputs found
Symmetry violations at BABAR
No full textContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd.2014 J. Phys.: Conf. Ser. 556 012042
(http://iopscience.iop.org/1742-6596/556/1/012042
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Rare B Decays at Babar
No full textThe author presents some of the most recent BABAR measurements for rare B decays. These include rate asymmetries in the B decays to K{sup (*)}l{sup +}l{sup -} and K{sup +}{pi}{sup -} and branching fractions in the B decays to l{sup +}{nu}{sub l}, K{sub 1}(1270){sup +}{pi}{sup -} and K{sub 1}(1400){sup +}{pi}{sup -}. The author also reports a search for the B{sup +} decay to K{sub S}{sup 0}K{sub S}{sup 0}{pi}{sup +}
Fifty Years of Babar, Toledo, Ohio, 1985
No full textAuthor Laurent de Brunhoff signs Babar books for his fans at the Fifty Years of Babar exhibition at the Toledo Museum of Art in March of 1985. Terms associated with the photograph are: Babar (fictitious character) | Toledo Museum of Art (Toledo, Ohio) | Brunhoff, Jean de | Brunhoff, Laurent de | autographs | author
A model-independent Dalitz plot analysis of B±→DK± with D→K0Sh+h− (h=π,K) decays and constraints on the CKM angle γ
No full textA binned Dalitz plot analysis of B ±→DK ± decays, with D→KS0π+π- and D→KS0K+K-, is performed to measure the CP-violating observables x ± and y ± which are sensitive to the CKM angle γ. The analysis exploits 1.0 fb -1 of data collected by the LHCb experiment. The study makes no model-based assumption on the variation of the strong phase of the D decay amplitude over the Dalitz plot, but uses measurements of this quantity from CLEO-c as input. The values of the parameters are found to be x -=(0.0±4.3±1.5±0.6)×10 -2, y -=(2.7±5.2±0.8±2.3)×10 -2, x +=(-10.3±4.5±1.8±1.4)×10 -2 and y +=(-0.9±3.7±0.8±3.0)×10 -2. The first, second, and third uncertainties are the statistical, the experimental systematic, and the error associated with the precision of the strong-phase parameters measured at CLEO-c, respectively. These results correspond to γ=(44-38+43)°, with a second solution at γ→γ+180°, and r B=0.07±0.04, where r B is the ratio between the suppressed and favoured B decay amplitudes
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Semileptonic B decays at BaBar
No full textThis paper summarizes the content of a talk given by the author at the Lake Louise Winter Institute, on February 21st 2007. It presents recent measurements of the rates for semileptonic B decays using data collected by the BaBar detector at the PEP-II asymmetric-energy collider at the Stanford Linear Accelerator Center
Measurement of the electron's electric dipole moment using YbF molecules: methods and data analysis
No full text21.06.13 KB. Ok to add the author accepted version to spiral. IO
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Testing the Standard Model with Radiative Penguin Decays at BaBar
No full textThe author discusses two recent results in b {yields} s{gamma} decays from BABAR. The first is a measurement of the branching fraction and photon energy spectrum in the B meson frame of the decay B {yields} X{sub s{gamma}}. The second result probes the photon polarization via time-dependent CP violation in neutral B decays to K*{sup 0}{gamma}
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Charm Spectroscopy, Charm Decays And New States at BaBar
No full textThis document presents the recent studies of Charmed hadrons at BABAR BELLE and CLEO. Here the author focuses on the recent developments on the study of D*{sub sJ}, observation of D{sup +} {yields} K{sup +} {pi}{sup 0}, D{sup 0} - {bar D}{sup 0} mixing in the doubly cabibbo-suppressed decays using D{sup 0} {yields} K{sup +}{pi}{sup +}{pi}{sup 0} and the measurement of the decay constants using the leptonic D decays
Study of the flavour changing neutral current #beta#-s#gamma# at BaBar
No full textThe main theme of this thesis, is a monte-carlo analysis of the rare Flavour Changing Neutral Current (FCNC) decay b #-># s#gamma#. The analysis develops techniques that could be applied to real data, to discriminate between signal and background events in order to make a measurement of the branching ratio of this rare decay using the BaBar detector. Also included in this thesis is a description of the BaBar detector and the work I have undertaken in the development of the electronic data acquisition system for the Electromagnetic Calorimeter (EMC), a subsystem of the BaBar detector. (author)Available from British Library Document Supply Centre- DSC:DXN062509 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
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