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	Measurement of branching fractions and charge asymmetries in b+ decays to eta pi(+), eta k+, eta rho(+), and eta(')pi(+), and search for b-0 decays to eta k-0 and eta omega
	Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; Tisserand, V; Zghiche, A; Grauges-Pous, E
刊名	Physical review letters
	2005-09-23
卷号	95期号:13页码:7
ISSN号	0031-9007
DOI	10.1103/physrevlett.95.131803
通讯作者	Aubert, b()
英文摘要	We present measurements of branching fractions and charge asymmetries for six b-meson decay modes with an eta or eta' meson in the final state. the data sample corresponds to 232 x 10(6) bb pairs collected with the babar detector at the pep-ii asymmetric-energy e(+)e(-) b factory at slac. we measure the branching fractions (in units of 10(-6)): b(b+ -> eta pi(+)) = 5.1 +/- 0.6 +/- 0.3, b(b+ -> eta k+) = 3.3 +/- 0.6 +/- 0.3, b(b-0 -> eta k-0) = 1.5 +/- 0.7 +/- 0.1 (< 2.5 at 90% c.l.), b(b+ -> eta rho(+)) = 8.4 +/- 1.9 +/- 1.1, b(b-0 -> eta omega) = 1.0 +/- 0.5 +/- 0.2 (< 1.9 at 90% c.l.), and b(b+ -> eta'pi(+)) = 4.0 +/- 0.8 +/- 0.4, where the first uncertainty is statistical and second systematic. for the charged modes we also determine the charge asymmetries, all found to be compatible with zero.
WOS关键词	QCD FACTORIZATION ; CP-VIOLATION ; PHYSICS
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
语种	英语
出版者	AMERICAN PHYSICAL SOC
WOS记录号	WOS:000232060100011
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175806
专题	高能物理研究所
通讯作者	Aubert, B
作者单位	1.Phys Particules Lab, F-74941 Annecy Le Vieux, France 2.Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain 3.Univ Bari, Dipartmento Fis, I-70126 Bari, Italy 4.Ist Nazl Fis Nucl, I-70126 Bari, Italy 5.Inst High Energy Phys, Beijing 100039, Peoples R China 6.Univ Bergen, Inst Phys, N-5007 Bergen, Norway 7.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 8.Univ Calif Berkeley, Berkeley, CA 94720 USA 9.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 10.Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany
推荐引用方式 GB/T 7714	Aubert, B,Barate, R,Boutigny, D,et al. Measurement of branching fractions and charge asymmetries in b+ decays to eta pi(+), eta k+, eta rho(+), and eta(')pi(+), and search for b-0 decays to eta k-0 and eta omega[J]. Physical review letters,2005,95(13):7.
APA	Aubert, B.,Barate, R.,Boutigny, D.,Couderc, F.,Karyotakis, Y.,...&Neal, H.(2005).Measurement of branching fractions and charge asymmetries in b+ decays to eta pi(+), eta k+, eta rho(+), and eta(')pi(+), and search for b-0 decays to eta k-0 and eta omega.Physical review letters,95(13),7.
MLA	Aubert, B,et al."Measurement of branching fractions and charge asymmetries in b+ decays to eta pi(+), eta k+, eta rho(+), and eta(')pi(+), and search for b-0 decays to eta k-0 and eta omega".Physical review letters 95.13(2005):7.

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