Affordable Access

Evidence for charged B meson decays to a1+/-(1260)pi0 and a1(0)(1260)pi+/-.

Authors
  • Aubert, B
  • Bona, M
  • Boutigny, D
  • Karyotakis, Y
  • Lees, J P
  • Poireau, V
  • Prudent, X
  • Tisserand, V
  • Zghiche, A
  • Garra Tico, J
  • Grauges, E
  • Lopez, L
  • Palano, A
  • Eigen, G
  • Stugu, B
  • Sun, L
  • Abrams, G S
  • Battaglia, M
  • Brown, D N
  • Button-Shafer, J
  • And 551 more
Type
Published Article
Journal
Physical review letters
Publication Date
Dec 31, 2007
Volume
99
Issue
26
Pages
261801–261801
Identifiers
PMID: 18233566
Source
Medline
License
Unknown

Abstract

We present measurements of the branching fractions for the decays B;{+/-}-->a_{1};{+/-}(1260)pi;{0} and B;{+/-}-->a_{1};{0}(1260)pi;{+/-} from a data sample of 232x10;{6} BB[over ] pairs produced in e;{+}e;{-} annihilation through the Upsilon(4S) resonance. We measure the branching fraction B(B;{+/-}-->a_{1};{+/-}(1260)pi;{0})xB(a_{1};{+/-}(1260)-->pi;{-}pi;{+}pi;{+/-})=(13.2+/-2.7+/-2.1)x10;{-6} with a significance of 4.2sigma, and the branching fraction B(B;{+/-}-->a_{1};{0}(1260)pi;{+/-})xB(a_{1};{0}(1260)-->pi;{-}pi;{+}pi;{0})=(20.4+/-4.7+/-3.4)x10;{-6} with a significance of 3.8sigma, where the first error quoted is statistical and the second is systematic.

Report this publication

Statistics

Seen <100 times