Branching fraction limits for B-0 decays to eta '; eta, eta ';pi(0) and eta pi(0)

作者：Aubert B; Barate R; Boutigny D; Couderc F; Karyotakis Y; Lees JP; Poireau V; Tisserand V; Zghiche A; Grauges E; Palano A; Pappagallo M; Chen JC; Qi ND; Rong G; Wang P; Zhu YS; Eigen G; Ofte I; Stugu B; Abrams GS; Battaglia M; Best DS; Brown DN; Button Shafer J; Cahn RN; Charles E; Day CT; Gill MS; Gritsan **; Groysman Y; Jacobsen RG; Kadyk JA; Kerth LT; Kolomensky YG; Kukartsev G; Lynch G; Mir LM; Oddone PJ; Orimoto TJ; Pripstein M; Roe NA; Ronan MT

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2006, 73(7): 071102.

DOI：10.1103/PhysRevD.73.071102

We describe searches for decays to two-body charmless final states eta(';)eta, eta(';)pi(0) and eta pi(0) of B-0 mesons produced in e(+)e(-) annihilation. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 232x10(6) produced B (B) over bar pairs. The results for branching fractions are, in units of 10(-6) (upper limits at 90% C.L.): B(B-0->eta(';)eta)=0.2(-0.5)(+0.7)+/- 0.4(< 1.7), B(B-0->eta pi(0))=0.6(-0.4)(+0.5)+/- 0.1(< 1.3), and B(B-0->eta(';)pi(0))=0.8(-0.6)(+0.8)+/- 0.1(< 2.1). The first error quoted is statistical and the second systematic.

• 出版日期2006-4
• 单位中国地震局