Lessons from CLEO and FOCUS measurements of mixing parameters
نویسندگان
چکیده
منابع مشابه
Lessons from CLEO and FOCUS Measurements of D −D0 Mixing Parameters
S. Bergmann, Y. Grossman, Z. Ligeti, Y. Nir and A.A. Petrov Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309, USA Theory Group, Fermilab, P.O. Box 500, Batavia, IL 60510, USA School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, USA e Department of Physics and...
متن کاملCleo Results on Heavy Meson Mixing
The D−D system is unlike other systems that mix, such as K −K, B d −B 0 d, and B s −B 0 s in at least two respects: first, the Standard Model contributions are thought to be extremely small, so non-Standard contributions might be obvious; second, D−D is the only system that consists of up type quarks. New physics that differentiates between up and down type quarks could be revealed by study of ...
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15 صفحه اولMixing and CP Violation in the Decay of Neutral D Mesons at CLEO . CLEO
We present preliminary results of several analyses searching for the effects of CP violation and mixing in the decay ofD0 mesons. We find no evidence of CP asymmetry in five different two-body decay modes of the D0 to pairs of light pseudo-scalar mesons: ACP (K +K−) = (+0.05±2.18±0.84)%, ACP (π+π−) = (+2.0±3.2±0.8)%, ACP (K0 Sπ) = (+0.1±1.3)%, ACP (π0π0) = (+0.1±4.8)% and ACP (K 0 SK 0 S) = (−2...
متن کاملMixing and Cp Violation from Focus Experiment
Measurement results on D D̄ mixing and CP violation are presented. FOCUS is the fixed target experiment at Fermilab and results are based on a high statistics photo-produced charm sample collected during 96-97 run. We reconstructed more than 1 million charmed particles and compared the lifetimes of two D meson decays to Kπ and KK. We obtained a mixing parameter, ycp, is (3.42 ± 1.39 ± 0.74)%. We...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2000
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(00)00772-3