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Measurements of Branching Fractions, Polarizations, and Direct CP-Violation Asymmetries in B{yields}{rho}K and B{yields}f{sub 0}(980)K Decays

Aubert, B. ; Barate, R. ; Bona, M. ; Boutigny, D. ; Couderc, F. ; Karyotakis, Y. ; Lees, J. P. ; Poireau, V. ; Tisserand, V. ; Zghiche, A. ; Grauges, E. ; Palano, A. ; Chen, J. C. ; Qi, N. D. ; Rong, G. ; Wang, P. ; Zhu, Y. S. ; Eigen, G. ; Ofte, I. ; Stugu, B.

Physical review letters, 2006-11, Vol.97 (20) [Periódico revisado por pares]

United States

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Título:
Measurements of Branching Fractions, Polarizations, and Direct CP-Violation Asymmetries in B{yields}{rho}K and B{yields}f{sub 0}(980)K Decays
Autor: Aubert, B. ; Barate, R. ; Bona, M. ; Boutigny, D. ; Couderc, F. ; Karyotakis, Y. ; Lees, J. P. ; Poireau, V. ; Tisserand, V. ; Zghiche, A. ; Grauges, E. ; Palano, A. ; Chen, J. C. ; Qi, N. D. ; Rong, G. ; Wang, P. ; Zhu, Y. S. ; Eigen, G. ; Ofte, I. ; Stugu, B.
Assuntos: ASYMMETRY ; B NEUTRAL MESONS ; B PLUS MESONS ; BRANCHING RATIO ; CP INVARIANCE ; ERRORS ; F0-980 MESONS ; KAONS NEUTRAL ; KAONS PLUS ; PARTICLE DECAY ; PARTICLE PRODUCTION ; PEP STORAGE RINGS ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; POLARIZATION ; RHO-770 MESONS
É parte de: Physical review letters, 2006-11, Vol.97 (20)
Descrição: We report searches for B-meson decays to the charmless final states {rho}K* and f{sub 0}(980)K* with a sample of 232x10{sup 6} BB pairs collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider. We measure in units of 10{sup -6} the following branching fractions, where the first error quoted is statistical and the second systematic, or upper limits are given at the 90% confidence level : B(B{sup +}{yields}{rho}{sup 0}K*{sup +})<6.1, B(B{sup +}{yields}{rho}{sup +}K*{sup 0})=9.6{+-}1.7{+-}1.5, B(B{sup 0}{yields}{rho}{sup -}K*{sup +})<12.0, B(B{sup 0}{yields}{rho}{sup 0}K*{sup 0})=5.6{+-}0.9{+-}1.3, B(B{sup +}{yields}f{sub 0}(980)K*{sup +})=5.2{+-}1.2{+-}0.5, and B(B{sup 0}{yields}f{sub 0}(980)K*{sup 0})<4.3. For the significant modes, we also measure the fraction of longitudinal polarization and the charge asymmetry: f{sub L}(B{sup +}{yields}{rho}{sup +}K*{sup 0})=0.52{+-}0.10{+-}0.04, f{sub L}(B{sup 0}{yields}{rho}{sup 0}K*{sup 0})=0.57{+-}0.09{+-}0.08, A{sub CP}(B{sup +}{yields}{rho}{sup +}K*{sup 0})=-0.01{+-}0.16{+-}0.02, A{sub CP}(B{sup 0}{yields}{rho}{sup 0}K*{sup 0})=0.09{+-}0.19{+-}0.02, and A{sub CP}(B{sup +}{yields}f{sub 0}(980)K*{sup +})=-0.34{+-}0.21{+-}0.03.
Editor: United States
Idioma: Inglês

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Measurements of Branching Fractions, Polarizations, and Direct CP-Violation Asymmetries in B{yields}{rho}K and B{yields}f{sub 0}(980)K Decays

Aubert, B. ; Barate, R. ; Bona, M. ; Boutigny, D. ; Couderc, F. ; Karyotakis, Y. ; Lees, J. P. ; Poireau, V. ; Tisserand, V. ; Zghiche, A. ; Grauges, E. ; Palano, A. ; Chen, J. C. ; Qi, N. D. ; Rong, G. ; Wang, P. ; Zhu, Y. S. ; Eigen, G. ; Ofte, I. ; Stugu, B.

United States

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