Abstract
KM3NeT is a research infrastructure housing the next generation neutrino detectors in the depths of the Mediterranean Sea. The ARCA detector, which is currently under construction, is optimized for neutrino searches from astrophysical sources as well as measurements of the diffuse high energy astrophysical flux. The unambiguous detection of neutrinos of extraterrestrial origin by IceCube has led to the first measurement of a high energy astrophysical neutrino flux. The cutting-edge technology used for the design and construction of KM3NeT Digital Optical Modules along with the properties of sea water allow for a measurement of the neutrino direction with an unpresidented resolution for both track and cascade events. Taking advantage of this angular resolution a method to differentiate track and shower events and a method to reject the atmospheric muon background from track-like events were developed and combined to select a sample of high energy starting events. An analysis for the discovery potential of KM3NeT/ARCA for a diffuse astrophysical neutrino flux using these events is presented.
Highlights
KM3NeT/ARCA (Astroparticle Research with Cosmics in the Abyss) is currently under construction at a depth of 3500m, ∼ 80 km off-shore Portopalo di Capo Passero in Sicily [1]
The unambiguous detection of neutrinos of extraterrestrial origin by IceCube and the first measurement of a high energy astrophysical neutrino flux [2] marked the start of high energy neutrino astronomy
An analysis to maximise the discovery potential of KM3NeT/ARCA for a diffuse astrophysical neutrino flux is presented [3], for which a tool to differentiate shower-like from track-like events and a tool to reject incoming events to the detector, were developed
Summary
KM3NeT/ARCA (Astroparticle Research with Cosmics in the Abyss) is currently under construction at a depth of 3500m, ∼ 80 km off-shore Portopalo di Capo Passero in Sicily [1]. MDP was used to find the optimal cuts on the BDT output and the reconstructed muon energy After imposing these cuts, the contribution of starting track events to the signal (astrophysical neutrino) and background (atmospheric neutrino and muon) samples was 94% and 97%, respectively. In the final background sample practically all atmospheric neutrinos accompanied by muons were rejected, leading to a 32% reduction of the total atmospheric neutrino background
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
