116619220
Dark Matter Searches with ANTARES
119419425
Acoustic detection of UHE neutrinos – the ACORNE project
An interesting new possibility of detection of ultra-high energy (UHE) neutrinos is that of acoustic detection whereby the acoustic pressure pulse generated as a UHE neutrino interacts in a suitable medium such as water or ice is detected by an array of acoustic sensors. Recent years have seen something of a renaissance of this field and there are currently a number of activities worldwide to assess the potential of this technique. The UK-based ACORNE collaboration is one of these activities; ACORNE has access to the QinetiQ underwater acoustic range off Rona, an island off the North-West coast of Scotland. The poster will summarise ACORNE's R&D work, including simulation of the thermoacoustic emission of neutrino-induced particle cascades, reconstruction of event vertices and the effects of refraction, potential neutrino flux sensitivities from large area hydrophone arrays, a study transducer based calibration techniques and an analysis of the first acoustic data recorded by the Rona hydrophone array.
18899812
Acoustic detection of ultra-high-energy neutrinos
Abstract At ultra-high energies (>10 18  eV) the Earth is opaque to neutrinos and detection techniques other than the optical Cherenkov technique must be pursued. Here the possibility of detecting neutrinos via their acoustic signature is discussed. The paper presents an overview of current worldwide activities in the acoustic detection field which includes recent results from test experimental set-ups, simulation work, sensitivity calculations and results from data taken at deep-water deployments.
117604384
Dark Matter Prospects with the ANTARES Neutrino Telescope
The ANTARES collaboration is building a large-area telescope at the bottom of the Mediterranean Sea, capable of detecting high-energy neutrinos from a number of sources. Of particular interest here is the possibility of detecting the presence of neutralino dark matter at the centres of galactic sources via the annihilation of neutralinos into products containing high-energy neutrinos. The principle of detection of high-energy neutrinos and the ANTARES detector are introduced and the sensitivity of the first stage, 0.1 km2 ANTARES detector to neutralinos is presented, along with comparisons to theoretical predictions and direct detection experiments.
121776162
ARENA 2008 acoustic detection conference summary
The principle for detecting ultra-high energy neutrinos acoustically is briefly introduced. Current activities in this field are numerous and many have been reported at this conference. They include, e.g., the co-deployment of acoustic sensors in optical Cherenkov neutrino telescopes, the analysis of acoustic data from the existing hydrophone arrays for calibration and noise determination purposes, the design of bespoke acoustic sensors and the development of signal processing techniques. A digest of the status of current acoustic detection projects is presented. The work of the authors referenced in this text can be found elsewhere in these proceedings.
108561956
Future Plans for the ACORNE Collaboration
A summary of the future plans for ACORNE collaboration are presented. Of particular note is the intended development of an acoustic calibrator to be deployed in the deep sea above the Rona hydrophone array. Crucial to this goal is work recently completed on the understanding of hydrophone response and the generation of bipolar acoustic signals; this work is presented in detail.
55352795
INTERACTION REGION DESIGN FOR A RING-RING LHeC
The Large Hadron Electron Collider project is a proposal to study e-p and e-A interactions at the LHC. Using one of the LHC’s proton beams, an electron beam of relatively low energy and moderately high intensity provides high luminosity TeV-scale e-p collisions at one of the LHC interaction points, running simultaneously with existing experiments. Two designs are studied; an electron ring situated in the LHC tunnel, and an electron linac. The focus of this paper is on the ring design. Designing an e-p machine presents interesting accelerator physics and design challenges, particularly when considering the interaction region. These include coupled optics, beam separation and unconventional mini-β focusing schemes. Designs are constrained by an array of interdependent factors, including beam-beam interaction, detector dimensions and acceptance, luminosity and synchrotron radiation. Methods of addressing these complex issues are discussed. The current designs for the LHeC Ring-Ring interaction region and long straight section are presented and discussed, in the context of the project goals and design challenges encountered. Future developments and work are also discussed.
96441775
Interaction Region Optics for the Non-Interacting LHC Proton Beam at the LHeC
The Large Hadron Electron Collider project is a proposal to study e-p and e-A interactions at the LHC. Two electron accelerator designs are being studied; a linac and a synchrotron. In the synchrotron option, a 60GeV electron beam is collided with one of the LHC proton beams to provide high luminosity TeV-scale interactions. The interaction region for this scheme is complex and introduces a series of challenges due to the integration of the two machines. One of these is the optics of the second noninteracting proton beam. The second proton beam must not interfere with the LHeC experiment, but simultaneous running of the remaining LHC experiments requires that this beam must still circulate relatively undisturbed. This paper discusses methods to solve these challenges for the electron synchrotron design.