The next ANTARES-KM3NeT Collaboration Meeting will be held in Ischia (Italy) next May 18th-22nd, 2015. The ANTARES Collaboration has designed, built and deployed the first undersea neutrino telescope located under the Mediterranean Sea, near Toulon. ANTARES is at present fully operational and taking data in its final configuration since 2008.

Recently, the IceCube experiment at the South Pole has reported the discovery of high-energy cosmic neutrinos: A major breakthrough and the proof that neutrino astronomy is feasible. The high-energy neutrino telescope of KM3NeT (Astroparticle Research with Cosmics in the Abyss, ARCA) will detect the neutrino flux reported by IceCube and will provide essential data concerning its origin, energy spectrum and flavour composition.
The neutrino mass hierarchy can be determined using neutrinos produced in the Earth’s atmosphere through interactions of cosmic rays. It has been shown that this measurement can be performed by a densely instrumented Cherenkov detector using the same technology developed for ARCA: Oscillation Research with Cosmics in the Abyss, ORCA.

The KM3NeT research infrastructure will consist of arrays of light detectors constructed in the deep, clear water of the Mediterranean Sea. The light detectors are photo-multiplier tubes (PMTs) arranged in glass spheres that resist the water pressure (optical modules).
The optical modules are arranged along flexible strings kept vertical by a submerged buoy. ARCA, to be constructed near Sicily, consists of two building blocks of 115 strings each, with 18 optical modules per string; ORCA - near Toulon, France - is one block of 115 strings, but with much smaller horizontal and vertical spacing. Both installations will provide user ports for earth and sea sciences.

During the meeting, the main topics concerning both collaborations, related to the construction of KM3NeT, electronics, mechanics, DAQ, QA/QC, calibration, infrastructures, etc., as well as the status of the physics analyses in ANTARES and KM3NeT, will be presented and discussed.

We will provide to all participants of this conference a comfortable environment that we expect will stimulate fruitful scientific discussions.