Chinese Physics C > 2010, Vol. 34 > Issue(9): 1504-1507 DOI: 10.1088/1674-1137/34/9/085

Search for new physics in the B→K^(*)l⁺l^－decays at BABAR

SUN Liang (for the BABAR collaboration)

Institut de Physique Nucleaire de Lyon, Villeurbanne 69622, France

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Abstract：

Based on a data sample of 384 million BB pairs collected with the BABAR detector at the PEP-Ⅱ asymmetric e⁺e^－storage ring, we measure branching fractions, direct CP, isospin and lepton-flavor asymmetries for the rare decays B→K^(*)l⁺l^－in two di-lepton mass bins above and below the J/ψ resonance. For the B→K^*l⁺l^－decay, we also measure the K^*longitudinal polarization fraction and the di-lepton forward-backward asymmetry.

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SUN Liang (for the BABAR collaboration). Search for new physics in the B→K ^(*)l ⁺l ^－decays at BABAR[J]. Chinese Physics C, 2010, 34(9): 1504-1507. doi: 10.1088/1674-1137/34/9/085

SUN Liang (for the BABAR collaboration). Search for new physics in the B→K ^(*)l ⁺l ^－decays at BABAR[J]. Chinese Physics C, 2010, 34(9): 1504-1507. doi:10.1088/1674-1137/34/9/085 shu

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Received: 2010-02-04
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Search for new physics in the B→K^(*)l⁺l^－decays at BABAR

SUN Liang (for the BABAR collaboration)

Institut de Physique Nucleaire de Lyon, Villeurbanne 69622, France

Received Date:2010-02-04
Accepted Date:1900-01-01
Available Online:2010-09-05

Abstract:

Based on a data sample of 384 million BB pairs collected with the BABAR detector at the PEP-Ⅱ asymmetric e⁺e^－storage ring, we measure branching fractions, direct CP, isospin and lepton-flavor asymmetries for the rare decays B→K^(*)l⁺l^－in two di-lepton mass bins above and below the J/ψ resonance. For the B→K^*l⁺l^－decay, we also measure the K^*longitudinal polarization fraction and the di-lepton forward-backward asymmetry.