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|a Fisher, Peter H.
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|a Massachusetts Institute of Technology. Department of Physics
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|a Massachusetts Institute of Technology. Laboratory for Nuclear Science
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|a Fisher, Peter H.
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|a Fisher, Peter H.
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|a Cowan, Ray Franklin
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|a Dujmic, Denis
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|a Sciolla, Gabriella
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|a Zhao, M.
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|a Cowan, Ray Franklin
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|a Dujmic, Denis
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|a Sciolla, Gabriella
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|a Zhao, M.
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|a Evidence for Direct CP Violation in the Measurement of the Cabbibo-Kobayashi-Maskawa Angle gamma with B∓→D(*)K(*)∓ Decays
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|a Evidence for Direct CP Violation in the Measurement of the Cabbibo-Kobayashi-Maskawa Angle γ with B∓→D(*)K(*)∓ Decays
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|b American Physical Society,
|c 2011-02-17T22:38:57Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/60977
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|a We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle gamma through a Dalitz plot analysis of neutral D-meson decays to KS0pi+pi- and KS0K+K- produced in the processes B∓→DK∓, B∓-->D*K∓ with D*-->Dpi0, Dgamma, and B∓→DK*∓ with K*∓-->KS0pi∓, using 468 million BB̅ pairs collected by the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We measure gamma=(68±14±4±3)° (modulo 180°), where the first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the uncertainty in the description of the neutral D decay amplitudes. This result is inconsistent with gamma=0 (no direct CP violation) with a significance of 3.5 standard deviations.
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|a Alfred P. Sloan Foundation
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|a United States-Israel Binational Science Foundation
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|a United States. Dept. of Energy
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|a National Science Foundation (U.S.)
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|a Article
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|t Physical Review Letters
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