2019/07/02 by Suzanne Klaver, Klaver, Suzanne
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1907.01618
4 pages, 11 figures, proceedings of the 2019 Conference on Flavor Physics and CP Violation (FPCP2019), based on the work in arXiv:1905.02702
arxiv created 2019/07/02 · arxiv updated 2019/07/04
Radiative corrections to B → D ℓ νℓ decays can have an impact on predictions and measurements of the lepton universality ratios R(D+) and R(D0). These proceedings summarise a study on the comparison between recent calculations of soft-photon corrections on these ratios and the corrections simulated by the PHOTOS package. Also the impact of Coulomb interactions, not simulated in PHOTOS, is discussed. Using pseudo-experiments, the effect of high-energy photon emission is studied in an LHCb-like environment, showing a bias of up to 7% on measurements of R(D).