Document type
ArticleVersion
Published versionPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/56447
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-)
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
The angular distributions and the partial branching fraction of the decay B0→K*0μ+μ− are studied by using an integrated luminosity of 0.37 fb−1 of data collected with the LHCb detector. The forward-backward asymmetry of the muons, AFB, the fraction of longitudinal polarization, FL, and the partial branching fraction dB/dq2 are determined as a function of the dimuon invariant mass. The measurements are in good agreement with the standard model predictions and are the most precise to date. In the dimuon invariant mass squared range 1.00-6.00 GeV2/c4, the results are AFB=−0.06+0.13−0.14±0.04, FL=0.55±0.10±0.03, and dB/dq2=(0.42±0.06±0.03)×10−7 c4/GeV2. In each case, the first error is statistical and the second systematic.
Subject (English)
Citation
Citation
ABELLAN BETETA, Carlos, et al. Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-). Physical Review Letters. 2012. Vol. 108, num. 181806-1-181806-8. ISSN 0031-9007. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/56447