منابع مشابه
Studies of CP Violation at BABAR
BABAR has studied the time dependent asymmetries in the the decays B → J/ψK S and B → ψ(2S)K S in a data set of 9.0 fb taken at the Υ (4S) resonance. In these channels we reconstruct 168 events of which 120 are flavor tagged and used in a likelihood fit where we determine sin 2β. The flavor of the other neutral B mesons is tagged using information primarily from identified leptons and Kaons. A ...
متن کاملBeyond CP violation: hadronic physics at BaBar
I report on recent studies of hadronic physics performed by the BaBar Collaboration. Emphasis is given to the measurement of the properties of newly discovered charmed hadrons and to the searches for light and heavy pentaquarks. Contributed to the Proceedings of the First APS Topical Group Meeting on Hadron Physics Fermilab, Batavia, IL (October 24-26, 2004). Stanford Linear Accelerator Center,...
متن کاملCP-violation in b → s Penguin Decays at BaBar
We present the new and updated BABAR measurements of CP -violation studies for many b → s penguin decay modes. We report the first observation of mixing-induced CP -violation in B → η ′ K with a significance (including systematic uncertainties) of 5.5σ. We also present the first observation of the decay B → ρK. Using the time-dependent Dalitz plot analysis of B → KKK decay, the CP -parameters A...
متن کاملB Decays and CP Violation from BABAR
We present some recent BABAR measurements of the magnitudes of the elements Vub and Vcb of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix, and of the angles α and γ of the unitary triangle of the standard model of the electroweak interactions. Most of the measurements presented here are based on the full BABAR Υ(4S) dataset, consisting of about 467 × 106 BB pairs. Invited talk presented at t...
متن کاملFirst CP Violation Results from BABAR
We present a preliminary measurement of time-dependent CP -violating asymmetries in B0 → J/ψK0 S and B0 → ψ(2S)K0 S decays recorded by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The data sample consists of 9.0 fb collected at the Υ (4S) resonance and 0.8 fb off-resonance. One of the neutral B mesons, produced in pairs at the Υ (4S), is fully reconstructed. The flavor of the ...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2001
ISSN: 0168-9002
DOI: 10.1016/s0168-9002(01)00067-5