We present the results of searches for B decays to charmless two-body final states containing η′ or ω mesons, based on 50.7fb-1 of data collected with the BABAR detector. We find the branching fractions B(B+ → η′K+) = (70 ± 8 ± 5) × 10-6, B(B0 → η′K0) = (42+13 -11 ± 4) × 10-6, and B(B+ → ωπ+) = (6.6+2.1 -1.8 ± 0.7) × 10-6, where the first error quoted is statistical and the second is systematic. We give measurements of four additional modes for which the 90% confidence level upper limits are B(B+ → η′π+) < 12 × 10-6, B(B+ → ωK+) < 4 × 10-6, B(B0 → ωK0) < 13 × 10-6, and B(B0 → ωπ0) < 3 × 10-6.

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2001). Measurements of the branching fractions of exclusive charmless B meson decays with η′ or ω mesons. PHYSICAL REVIEW LETTERS, 87(22).

Measurements of the branching fractions of exclusive charmless B meson decays with η′ or ω mesons

CARPINELLI, Massimo;
2001

Abstract

We present the results of searches for B decays to charmless two-body final states containing η′ or ω mesons, based on 50.7fb-1 of data collected with the BABAR detector. We find the branching fractions B(B+ → η′K+) = (70 ± 8 ± 5) × 10-6, B(B0 → η′K0) = (42+13 -11 ± 4) × 10-6, and B(B+ → ωπ+) = (6.6+2.1 -1.8 ± 0.7) × 10-6, where the first error quoted is statistical and the second is systematic. We give measurements of four additional modes for which the 90% confidence level upper limits are B(B+ → η′π+) < 12 × 10-6, B(B+ → ωK+) < 4 × 10-6, B(B0 → ωK0) < 13 × 10-6, and B(B0 → ωπ0) < 3 × 10-6.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2001
87
22
221802
none
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2001). Measurements of the branching fractions of exclusive charmless B meson decays with η′ or ω mesons. PHYSICAL REVIEW LETTERS, 87(22).
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: https://hdl.handle.net/10281/390073
Citazioni
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 43
Social impact