READ ME File For 'Dataset for: Narrowing the parameter space of collapse models with ultracold layered force sensors’ Dataset DOI: 10.5258/SOTON/D1500 ReadMe Author: Hendrik Ulbricht, University of Southampton This dataset supports the publication: AUTHORS:Andrea Vinante, Matteo Carlesso, Angelo Bassi, A Chiasera, S. Varas, P. Falferi, B. Margesin, R. Mezzena, and H. Ulbricht TITLE:Narrowing the parameter space of collapse models with ultra-cold layered force sensors JOURNAL:Physical Review Letters PAPER DOI IF KNOWN: xxx This dataset contains: 1) PSD - Original power spectral densities at different temperatures (in mK). For accounting the spectral leakage due to the FFT resolution, one has to remove the central 6 points. The columns are: frequency (Hz), value of PSD (Phi_0^2/Hz), PSD error (same units) -> 70.dat 370.dat 200.dat 100.dat 300.dat 250.dat 125.dat 30.dat 450.dat 150.dat 50.dat 580.dat 1000.dat 85.dat 2) Final data - Excel reporting the results of the PSD fits and that of the linear fit of B for the high temperatures. Final upper bound for the value of S_{F0} -> Final-data.xlsx Date of data collection: 15/03/2019 Information about geographic location of data collection: University of Southampton/INF-CNR Trento Licence: Related projects: EU H2020 FET project TEQ (Grant No. 766900), Leverhulme Trust (RPG-2016-046), COST Action QTSpace (CA15220), INFN Foundational Questions Institute (FQXi) Date that the file was created: August, 2020