The European Spallation Source (ESS), currently under construction in Lund, Sweden, is a research center that will provide, by 2023, the world's most powerful neutron source. The average power of the proton linac will be 5 MW. Pulsing this linac at higher frequency will make it possible to raise the average total beam power to 10 MW to produce, in parallel with the spallation neutron production, a very intense neutrino Super Beam of about 0.4 GeV mean neutrino energy. This will allow searching for leptonic CP violation at the second oscillation maximum where the sensitivity is about 3 times higher than at the first. The ESS neutrino Super Beam, ESSnuSB operated with a 2.0 GeV linac proton beam, together with a large underground Water Cherenkov detector located at 540 km from Lund, will make it possible to discover leptonic CP violation at 5 significance level in 56% (65% for an upgrade to 2.5 GeV beam energy) of the leptonic CP-violating phase range after 10 years of data taking, assuming a 5% systematic error in the neutrino flux and 10% in the neutrino cross section. The paper presents the outstanding physics reach possible for CP violation with ESSnuSB obtainable under these assumptions for the systematic errors. It also describes the upgrade of the ESS accelerator complex required for ESSnuSB.

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Contribution to the IEEE 1991 Particle Accelerator Conference energy and additional RF systems, both in the PSB and PS.(RFQ2) as a preinjector for the linac (LINAC2), an increase of the PSB extraction pulses from the Proton Synchrotron Booster (PSB) and requires an RF quadrupole magnets of LHC at injection. It involves filling the Proton Synchrotron (PS) with two especially in order to reduce the effects of persistent currents in the superconducting selection is governed by the need for the shortest possible LHC filling time, Out of a number of possible scenarios (1), the one favoured is realized in stages. Its hardware modifications which would be required to achieve this goal.attained. This paper considers the beam dynamics operations and the associated transverse particle density exceeds, by a factor of three, the highest currently proton-proton collider requires that the CERN PS Complex provides a beam whoseThe delivery of a beam with characteristics appropriate to the filling of the LHC ABSTRACT CERN,