Bal d'O, ZaragozaPrevious issue Next issue. It was dedicated to the memory of professor Angel Morales, co-founder of bar baldo zaragoza TAUP Series and a central figure in the scientific shaping and organization of the TAUP conferences since their inception in He and his group of collaborators laid, twenty years ago, the foundations of underground physics in Spain. The Conference was concluded by a visit to the new installations of the Canfranc Laboratory, where a memorial ceremony was held in honour of Zzragoza Morales, the driving force for the creation of that Laboratory. New and important scientific bar baldo zaragoza were presented and debated in the plenary review talks and in a very large number of contributions in topical parallel sessions.
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Previous issue Next issue. It was dedicated to the memory of professor Angel Morales, co-founder of the TAUP Series and a central figure in the scientific shaping and organization of the TAUP conferences since their inception in He and his group of collaborators laid, twenty years ago, the foundations of underground physics in Spain.
The Conference was concluded by a visit to the new installations of the Canfranc Laboratory, where a memorial ceremony was held in honour of Angel Morales, the driving force for the creation of that Laboratory. New and important scientific results were presented and debated in the plenary review talks and in a very large number of contributions in topical parallel sessions.
As editors of these proceedings, we hope that this volume, which contains most of the talks and contributions presented at TAUP , will provide a detailed state-of-the-art account of the various facets of Astroparticle Physics.
We thank all the invited speakers and contributors who made this possible. Full coverage of the transparencies presented at the conference can be found on the website http: In this talk, his figure, as a pioneer and leader in the fields of Neutrino Physics, Astronomy and Astrophysics and as a man of great personal qualities, was illustrated.
Our astroparticle community will miss him greatly. We also gratefully thank the technical staff: Bottino chair , U. Dar, Technion Haifa G. Roma Tor Vergata G. Vignaud, CdF Paris F. Roma Tor Vergata J. Morales co-chair , U. Some of the papers and talks given at the conference have not been published in this volume of Journal of Physics: The attached PDF file lists the full conference program and indicates with an asterisk those papers or talks which are not present in this volume.
Cosmic microwave background CMB anisotropy is our richest source of cosmological information; the standard cosmological model was largely established thanks to study of the temperature anisotropies. By the end of the decade, the Planck satellite will close this important chapter and move us deeper into the new frontier of polarization measurements. Numerous ground-based and balloon-borne experiments are already forging into this new territory.
Besides providing new and independent information on the primordial density perturbations and cosmological parameters, polarization measurements offer the potential to detect primordial gravity waves, constrain dark energy and measure the neutrino mass scale.
A vigorous experimental program is underway worldwide and heading towards a new satellite mission dedicated to CMB polarization. In the minimal supersymmetric extention of the scalar triplet seesaw model for neutrino masses an additional source of CP violation can be provided by a phase in the trilinear soft-breaking terms. By explicitly solving the relevant Boltzman equations including the gauge annihilation effect we show how in this scenario successful thermal leptogenesis can occur only for a mass of the decaying scalar triplet in the TeV scale.
This opens up an interesting opportunity for testing the model at future colliders. The most entropic fluid can be related to a dense gas of black holes that we use to study the beginning of the universe. We encounter difficulties to compatibilize an adiabatic expansion with the growing area for the coalescence of black holes. This problem may be circumvented for a quantum black hole fluid, whose classical counterpart can be described by a percolating process at the critical point.
This classical regime might be related to the energy content of the current universe. The status of the 4 operating cylindrical gravitational waves resonant antenna detectors is summarized. A short review is given of the experimental results and of the next generation projects.
Resonant detectors are now sensitive to the strongest potential sources of gravitational waves in our galaxy and in the local group. Recently interferometric detectors have achieved very good perfomances, but resonant detectors are still competitive particularly for what concern the very good live-time.
F J Raab representing the Ligo Scientific collaboration and other laser interferometer groups. There has been a rapid advance in the sensitivity of broadband searches for gravitational waves, using an international network of kilometer-scale laser interferometers. These detectors and the VIRGO detector in Italy are in a mature state of commissioning and technology development for a generation of more advanced detectors is ongoing. The gravitational wave detector Virgo commissioning started in autumn The main commissioning goal is to reach stable operation at the design sensitivity, significantly extended to the low frequency range starting from 10 Hz.
However, the Collaboration's efforts during the last commissioning phase will also be aimed at the data exchange with other detectors operating with comparable sensitivity. The present status of the detector and the short term planning are outlined in this paper. An overview of the searches for continuous gravitational wave signals in LIGO and GEO performed on different recent science runs and results are presented.
This includes both searching for gravitational waves from known pulsars as well as blind searches over a wide parameter space. We discuss the interest of acoustic gw detectors for sources in the kHz range. In the timeframe, a fully wideband DUAL acoustic gw detector would uniquely cover the kHz band, giving ''assured'' and, in conjunction with advanced interferometers, ''confident'' detections of the whole dynamics of coalescence of compact binaries.
This paper describes the main properties of gravitational wave detectors of spherical shape, the experimental achievements obtained up to now towards the development of this kind of detectors and the expected sensitivity of SFERA, a 2 meters diameter spherical antenna proposed as the next step in the development of resonant gravitational wave detectors.
Cosmic ray events with rate and energy much higher than expected were detected by the ultracryogenic gravitational antenna Nautilus located at the Laboratori Nazionali di Frascati, when it was operating in superconducting state. Mechanisms related to the superconductivity state of the material could be involved in such a way to enhance the conversion efficiency of the particle energy into vibrational energy of the detector.
The RAP experiment has the aim to study the mechanical response of a small metallic resonant bar to short pulses of high energy electron beam, investigating the response of the bar both in normal and in superconducting state.
The results obtained for an Al bar down to a temperature of 4 K are reported and the preliminary results for a niobium bar at temperature below and above the superconducting-normal transition are also discussed. I highlight some main aspects of the present complementarity in looking for new physics beyond the Standard Model between accelerator physics and direct and indirect dark matter searches.
We present some useful ways to visualize the nature of dark energy and the effects of the accelerating expansion on cosmological quantities. Expansion probes such as Type Ia supernovae distances and growth probes such as weak gravitational lensing and the evolution of large scale structure provide powerful tests in complementarity. We present a ''ladder'' diagram, showing that in addition to dramatic improvements in precision, next generation probes will provide insight through an increasing ability to test assumptions of the cosmological framework, including gravity beyond general relativity.
Two towers, each consisting of six detectors, were operated in the mine for When combined with the data from the first run at Soudan, the new upper limit is 1. This is a factor of 2. Limits from the Si data 12 kg-d are less stringent, but extend the excluded region for low mass WIMPs.
CDMS also has sensitivity to spin-dependent limits. The increased exposure confirms previous results. Preliminary results are expected in ; the experiment could ultimately deploy up to 40 kg of detectors. Goals are to gain two orders of magnitude in sensitivity and to serve as a testbed for an even larger, tonne-scale, experiment. In the second phase of the experiment scintillating calcium tungstate crystals are used to discriminate background by means of different light yield for background and WIMP signals.
After first results with this novel technique have been obtained, the experimental setup is being upgraded for further background reduction and larger target mass. The results and present status of the experiment will be presented. Some corollary model-dependent quests for the candidate particle have been investigated.
We give a status report on three experiments aiming at the direct detection of dark matter. The astronomical dark matter could be made of weakly interacting massive species whose mutual annihilations should produce antimatter particles and distortions in the corresponding energy spectra. The propagation of cosmic rays inside the Milky Way plays a crucial role and is briefly presented. The uncertainties in its description lead to considerable variations in the predicted primary fluxes. This point is illustrated with antiprotons.
Finally, the various forthcoming projects are rapidly reviewed with their potential reach. Magnetic field dependent transient solar observations are suggestive for axionphoton oscillations with light axion -like particle involvement. Furthermore, the predicted intrinsic strong solar magnetic fields could be the reason of enhanced low energy axion production.
Solar axion telescopes should lower their threshold, aiming to copy processes that might occur near the solar surface, be it due to spontaneous or magnetically induced radiative decay of axion -like particles. This is motivated also by the recent claim of an axion-like particle detection by the laser experiment PVLAS. The detector is a 3D position sensitive Time Projection Chamber optimized to simultaneously measure the ionization and scintillation produced by a recoil event of energy as low as 16 keV.
The distinct ratio of the two signals for nuclear recoils arising from WIMPs and neutrons and for electron recoils from the dominant gamma-ray background determines its event-by-event discrimination.
With 1 ton of LXe distributed in ten identical modules, the proposed XENON1T experiment will achieve a sensitivity more than a factor of thousand beyond current limits. The experiment will be based at the Gran Sasso Underground Laboratory and is expected to start data taking in early We present recent results obtained operating a prototype with a sensitive mass of 2.
The CAST Experiment commenced its first phase of solar axion-searching in , and ran successfully for two years. In Phase I the twin bores of the magnet were kept in vacuum. In Phase II due to start in November the bores of the magnet will be filled with a buffer gas, which will allow CAST to explore the region of higher axion masses.
The thin NaI Tl showed the good performance for energy resolution and low energy threshold. A large mass dark matter search experiment with NaI scintillators at the Canfranc Underground Laboratory is underway. Preliminary results and prospects for the experiment are presented. Advantages of this approach are optimal choice of target liquid-CF 3 I, maximally sensitive to both spin-dependent SD and spin-independent SI WIMP interactions, low cost, good scalability, room temperature operation, extraordinary intrinsic rejection of minimally-ionizing backgrounds, and a number of features permitting rejection of irreducible neutron backgrounds.
A 2 kg prototype chamber is currently operating at the depth of meters water equivalent m. NuMi gallery of Fermilab. Even with the small prototype mass, results competitive in the SI channel and surpassing current limits in the SD channel are expected.
Our design addresses the possibility to detect independently ionization and scintillation signals. In this paper, we describe this goal and the conceptual design of the detector. The particle discrimination capability of various scintillating bolometers has been tested, proving their suitability for dark matter searches. In particular, BGO and undoped sapphire have shown low particle discrimination energy threshold down to around 20 and 10 keV, respectively.
Neutron background for the high-sensitivity underground particle astrophysics experiments, in particular for dark matter searches, is discussed with an emphasis on the neutrons from rock and from cosmic-ray muons. The neutron background in the Modane Underground Laboratory is discussed.
Measurements of radioactivity and composition of rock from the main hall of the new Canfranc underground laboratory are reported.