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Article . 2004
Data sources: UCL Discovery
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Direct CP violating asymmetry in B0-->K+pi- decays.

Authors: Aubert B; Barate R; Boutigny D; Couderc F; Gaillard JM; Hicheur A; Karyotakis Y; +193 Authors

Direct CP violating asymmetry in B0-->K+pi- decays.

Abstract

We present a measurement of the direct CP violating asymmetry in the decay B0-->K+pi(-) using a data sample of 227x10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We observe a total signal yield of nK-(pi(+))+nK+(pi(-))=1606+/-51 decays and measure the asymmetry (nK-(pi(+))-nK+(pi(-)))/(nK-(pi(+))+nK+(pi(-)))=-0.133+/-0.030(stat)+/-0.009(syst). The probability of observing such an asymmetry in the absence of direct CP violation is 1.3x10(-5), corresponding to 4.2 standard deviations.

Countries
United Kingdom, Italy
Keywords

Approximation theory; Calorimeters; Charged particles; Computer simulation; Crystals; Error analysis; Kinematics; Matrix algebra; Maximum likelihood estimation; Monte Carlo methods; Oscillations; Parameter estimation; Probability; Sampling; Solenoids, Neutral kaon, CP violation; beauty; meson, HEP; BaBar, -, NEUTRAL KAON, NEUTRAL KAON; BABAR; SLAC

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
171
Top 10%
Top 1%
Top 1%
Green
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