About: Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1103/PhysRevLett.108.031801
Description	We report measurements of the branching fractions and CP asymmetries for B-+/- -> eta h(+/-) (h = K or pi) and the observation of the decay B-0 -> eta K-0 from the final data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching fractions are B(B-+/- -> eta K-+/-) = (2.12 +/- 0.23 +/- 0.11) x 10(-6), B(B-+/- -> eta pi(+/-)) = (4.07 +/- 0.26 +/- 0.21) x 10(-6), and B(B-0 -> eta K-0) = (1.27(-0.29)(+0.33) +/- 0.08) x 10(-6), where the last decay is observed for the first time with a significance of 5.4 standard deviations (sigma). We also find evidence for CP violation in the charged B modes, A(CP)(B-+/- -> eta K-+/-) = -0.38 +/- 0.11 +/- 0.01 and A(CP)(B-+/- -> eta pi(+/-)) = -0.19 +/- 0.06 +/- 0.01 with significances of 3.8 sigma and 3.0 sigma, respectively. For all measurements, the first and second uncertainties are statistical and systematic, respectively. We report measurements of the branching fractions and CP asymmetries for B-+/- -> eta h(+/-) (h = K or pi) and the observation of the decay B-0 -> eta K-0 from the final data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching fractions are B(B-+/- -> eta K-+/-) = (2.12 +/- 0.23 +/- 0.11) x 10(-6), B(B-+/- -> eta pi(+/-)) = (4.07 +/- 0.26 +/- 0.21) x 10(-6), and B(B-0 -> eta K-0) = (1.27(-0.29)(+0.33) +/- 0.08) x 10(-6), where the last decay is observed for the first time with a significance of 5.4 standard deviations (sigma). We also find evidence for CP violation in the charged B modes, A(CP)(B-+/- -> eta K-+/-) = -0.38 +/- 0.11 +/- 0.01 and A(CP)(B-+/- -> eta pi(+/-)) = -0.19 +/- 0.06 +/- 0.01 with significances of 3.8 sigma and 3.0 sigma, respectively. For all measurements, the first and second uncertainties are statistical and systematic, respectively. (en)
Title	Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0 Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0 (en)
skos:prefLabel	Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0 Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0 (en)
skos:notation	RIV/00216208:11320/12:10127911!RIV13-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LA10033), Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kodyš, Peter Drásal, Zbyněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	135259
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10127911
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	eta; photos; detector; decays; monte-carlo (en)
http://linked.open.../riv/klicoveSlovo	monte-carlo photos eta detector decays
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[BF5178540794]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	127 (xsd:int)
http://linked.open...vavai/riv/projekt	Participation in the Belle a Belle II experiments: study of B-meson decays
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	108
http://linked.open...iv/tvurceVysledku	Cho, K. Drásal, Zbyněk Kodyš, Peter Aihara, H. Bhardwaj, V. Chen, P. Bischofberger, M. Aushev, T. Eidelman, S. Bondar, A. Asner, D. M. Bakich, A. M. Belous, K. Bhuyan, B. Boček, A. Bracko, M. Browder, T. E. Chang, M. -C. Chang, P. Chao, Y. Chen, A. Chen, K. -F. Cheon, G. Chilikin, K. Choi, Y. Danilov, M. Drutskoy, A. Fast, J. E. Gabyshev, N. Gaur, V. Hoi, C. -T.
http://linked.open...ain/vavai/riv/wos	000299821100001
http://linked.open...n/vavai/riv/zamer	Výzkum vlastností jader a subjaderných částic a jejich interakcí
issn	0031-9007
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevLett.108.031801
http://localhost/t...ganizacniJednotka	11320

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