HEPData 2.0: new technologies and services

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The successful interpretation of data from modern high-energy particle physics experiments is a complex process involving not only the actual measurement but also the input of a variety of theoretical or phenomenological models and processes, which, of course, rely on previous data. The HEPData project at the IPPP Durham will continue to compile HEP Experimental scattering data from particle physics experiments around the world and make these freely and openly available. It will keep these data easily accessible and thus promote them to a wider audience. The data in HEPData allow, among others, the planning and interpretation of new measurements and the re-interpretation of older data in light of new findings, precision tests of theoretical models and the extraction of fundamental parameters or their limits, and the tuning and validation of simulation tools.Through a better integration with Inspire, the central publication database of particle physics, HEPData will provide a vastly improved persistent open-access repository of published data, serving as the living memory of particle physics. HEPData will eventually become a formal member of the emerging INSPIRE collaboration, which currently consists of CERN, DESY, SLAC, FERMILAB and IHEP in China, and will thus represent the UK particle physics community in one aspect of the global data preservation strategy in particle physics. One of the effects of this integration is that valuable time of the trained physicist managing HEPData will be freed for central and important aspects of data curation, for further developments and for a broadening of the scope of HEPData. This will include extending the abilities of the new HEPdata-Inspire framework with respect to the old HEPData database, for instance by allowing the inclusion of supporting material that has not been part of the journal publication, by allowing cross linking with essential analysis software, thus providing a more integrated vision for data persistence, and by adding other modes and formats for data submission by the experimenters. In addition, we plan to broaden the scope of HEPData, to incorporate also data from particle decays or low-energy or astro-particle experiments, and to include also data relevant for the construction of detector simulation. Providing a repository for such data will also be useful for other fields of science, such as material science, space science, or medical physics.HEPDATA will also continue to provide a server for Parton Distribution Function (PDF) codes and maintain and improve facilities for plotting them. It will take part in developing and maintaining LHAPDF, the new library of PDFs for use in current and future analyses.