With a sample of approximately 89x10(6) B (B) over bar pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K-*). We measure the branching fractions, determine the degree of longitudinal polarization, and search for CP violation asymmetries in the processes B+-->phiK(*+), B-0-->phiK(*0), B+-->rho(0)K(*+), and B+-->rho(0)rho(+). We also set an upper limit on the branching fraction for the decay B-0-->rho(0)rho(0).
Rates, polarizations, and asymmetries in charmless vector-vector B meson decays
ANDREOTTI, Mirco;CALABRESE, Roberto;LUPPI, Eleonora;NEGRINI, Matteo;
2003
Abstract
With a sample of approximately 89x10(6) B (B) over bar pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K-*). We measure the branching fractions, determine the degree of longitudinal polarization, and search for CP violation asymmetries in the processes B+-->phiK(*+), B-0-->phiK(*0), B+-->rho(0)K(*+), and B+-->rho(0)rho(+). We also set an upper limit on the branching fraction for the decay B-0-->rho(0)rho(0).File in questo prodotto:
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