We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459 x 10(6) B (B) over bar pairs. The results for branching fractions are, in units of 10(-6) (upper limits at 90% C.L.), B(B+ -> eta rho(+)) = 9.9 +/- 1.2 +/- 0.8, (BB0 -> eta(')eta) = 0.5 +/- 0.4 +/- 0.1(< 1.2), B(B-0 -> eta pi(0)) = 0.9 +/- 0.4 +/- 0.1( < 1.5), B(B-0 -> eta(')pi(0)) = 0.9 +/- 0.4 +/- 0.1(< 1.5), and B(B-0 -> omega pi(0)) = 0.07 +/- 0.26 +/- 0.02(< 0.5). The first error quoted is statistical and the second systematic. For the eta rho(+) mode, we measure the charge asymmetry A(ch)(B+ -> eta rho(+)) = 0.13 +/- 0.11 +/- 0.02.

We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459 x 10(6) B (B) over bar pairs. The results for branching fractions are, in units of 10(-6) (upper limits at 90% C.L.), B(B+ -> eta rho(+)) = 9.9 +/- 1.2 +/- 0.8, (BB0 -> eta(')eta) = 0.5 +/- 0.4 +/- 0.1(< 1.2), B(B-0 -> eta pi(0)) = 0.9 +/- 0.4 +/- 0.1( < 1.5), B(B-0 -> eta(')pi(0)) = 0.9 +/- 0.4 +/- 0.1(< 1.5), and B(B-0 -> omega pi(0)) = 0.07 +/- 0.26 +/- 0.02(< 0.5). The first error quoted is statistical and the second systematic. For the eta rho(+) mode, we measure the charge asymmetry A(ch)(B+ -> eta rho(+)) = 0.13 +/- 0.11 +/- 0.02.

Observation of B+->eta rho(+) and search for B-0 decays to eta 'eta, eta pi(0), eta 'pi(0), and omega pi(0)

Baracchini E;Ferroni F;
2008

Abstract

We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459 x 10(6) B (B) over bar pairs. The results for branching fractions are, in units of 10(-6) (upper limits at 90% C.L.), B(B+ -> eta rho(+)) = 9.9 +/- 1.2 +/- 0.8, (BB0 -> eta(')eta) = 0.5 +/- 0.4 +/- 0.1(< 1.2), B(B-0 -> eta pi(0)) = 0.9 +/- 0.4 +/- 0.1( < 1.5), B(B-0 -> eta(')pi(0)) = 0.9 +/- 0.4 +/- 0.1(< 1.5), and B(B-0 -> omega pi(0)) = 0.07 +/- 0.26 +/- 0.02(< 0.5). The first error quoted is statistical and the second systematic. For the eta rho(+) mode, we measure the charge asymmetry A(ch)(B+ -> eta rho(+)) = 0.13 +/- 0.11 +/- 0.02.
We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459 x 10(6) B (B) over bar pairs. The results for branching fractions are, in units of 10(-6) (upper limits at 90% C.L.), B(B+ -&gt; eta rho(+)) = 9.9 +/- 1.2 +/- 0.8, (BB0 -&gt; eta(')eta) = 0.5 +/- 0.4 +/- 0.1(&lt; 1.2), B(B-0 -&gt; eta pi(0)) = 0.9 +/- 0.4 +/- 0.1( &lt; 1.5), B(B-0 -&gt; eta(')pi(0)) = 0.9 +/- 0.4 +/- 0.1(&lt; 1.5), and B(B-0 -&gt; omega pi(0)) = 0.07 +/- 0.26 +/- 0.02(&lt; 0.5). The first error quoted is statistical and the second systematic. For the eta rho(+) mode, we measure the charge asymmetry A(ch)(B+ -&gt; eta rho(+)) = 0.13 +/- 0.11 +/- 0.02.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12571/1703
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 88
  • ???jsp.display-item.citation.isi??? 21
social impact