2020-08-05

free increase in precision!

Kate Storey-Fisher (NYU) and I worked through some figures for her paper on her new correlation-function estimator. Her estimator isn't tied to bins in separation: It infers the parameters of a smooth correlation-function model. Thus it is more expressive than the standard estimator with fewer parameters (bins). And her figures show that, using it, she can measure the baryon acoustic feature peak more precisely! Which corresponds to a reduction in the cost of a project at fixed precision, or an increase in precision at fixed cost. Awesome! Now how to present this all so it seems natural and sensible to the cosmology community: It is hard to teach an old dog new tricks.

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