Browsing by Subject "Observed confidence levels (Statistics)"
Now showing items 1-3 of 3
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Determination of the Spin and Parity of the Z_c (3900)
(American Physical Society, 2017)The spin and parity of the Z_{c}(3900)^{±} state are determined to be J^{P} =1⁺ with a statistical significance larger than 7σ over other quantum numbers in a partial wave analysis of the process e⁺e⁻ → π⁺π⁻J/ψ. We use a ... -
Search for B⁺→ K⁺τ⁺τ⁻ at the Babar Experiment
(American Physical Society, 2018-08-24)We search for the rare flavor-changing neutral current process B⁺→ K⁺τ⁺τ⁻ using data from the BABAR experiment. The data sample, collected at the center-of-mass energy of the Υ(4S) resonance, corresponds to a total integrated ... -
Search for Invisible Decays of a Dark Photon Produced in e⁺e⁻ Collisions at Babar
(American Physical Society, 2017-09)We search for single-photon events in 53 fb⁻¹ of e⁺e⁻ collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, ...