We present a search for the decay B+→a1+(1260)K*0(892). The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represent 465×10^6BB̅ pairs produced in e+e- annihilation at the energy of the Υ(4S). We find no significant signal and set an upper limit at 90% confidence level on the product of branching fractions B(B+→a1+(1260)K*0(892))×B(a1+(1260)→π+π-π+) of 1.8×10-6.
Search for B+ meson decay to a(1)(+)(1260)K*(0)(892)
GAZ A;SIMI, GABRIELE;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;
2010
Abstract
We present a search for the decay B+→a1+(1260)K*0(892). The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represent 465×10^6BB̅ pairs produced in e+e- annihilation at the energy of the Υ(4S). We find no significant signal and set an upper limit at 90% confidence level on the product of branching fractions B(B+→a1+(1260)K*0(892))×B(a1+(1260)→π+π-π+) of 1.8×10-6.
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