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Parallel Sessions
Identification of Dark Matter July 23-27, 2012 9th International Conference Chicago, IL http://kicp-workshops.uchicago.edu/IDM2012/ PARALLEL SESSIONS http://kicp.uchicago.edu/ http://www.nsf.gov/ http://www.uchicago.edu/ http://www.fnal.gov/ International Advisory Committee Daniel Akerib Elena Aprile Rita Bernabei Case Western Reserve University, Columbia University, USA Universita degli Studi di Roma, Italy Cleveland, USA Gianfranco Bertone Joakim Edsjo Katherine Freese University of Amsterdam Oskar Klein Centre / Stockholm University of Michigan, USA University Richard Gaitskell Gilles Gerbier Anne Green Brown University, USA IRFU/ CEA Saclay, France University of Nottingham, UK Karsten Jedamzik Xiangdong Ji Lawrence Krauss Universite de Montpellier, France University of Maryland, USA Arizona State University, USA Vitaly Kudryavtsev Reina Maruyama Leszek Roszkowski University of Sheffield University of Wisconsin-Madison University of Sheffield, UK Bernard Sadoulet Pierre Salati Daniel Santos University of California, Berkeley, USA University of California, Berkeley, USA LPSC/UJF/CNRS Pierre Sikivie Daniel Snowden-Ifft Neil Spooner University of Florida, USA Occidental College University of Sheffield, UK Max Tegmark Karl van Bibber Kavli Institute for Astrophysics & Space Naval Postgraduate School Monterey, Research at MIT, USA USA Local Organizing Committee Daniel Bauer Matthew Buckley Juan Collar Fermi National Accelerator Laboratory Fermi National Accelerator Laboratory Kavli Institute for Cosmological Physics Scott Dodelson Aimee -
Development of a Liquid Xenon Time Projection Chamber for the XENON Dark Matter Search
Development of a Liquid Xenon Time Projection Chamber for the XENON Dark Matter Search Kaixuan Ni Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2006 c 2006 Kaixuan Ni All rights reserved Development of a Liquid Xenon Time Projection Chamber for the XENON Dark Matter Search Kaixuan Ni Advisor: Professor Elena Aprile Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2006 c 2006 Kaixuan Ni All rights reserved ABSTRACT Development of a Liquid Xenon Time Projection Chamber for the XENON Dark Matter Search Kaixuan Ni This thesis describes the research conducted for the XENON dark matter direct detection experiment. The tiny energy and small cross-section, from the interaction of dark matter particle on the target, requires a low threshold and sufficient background rejection capability of the detector. The XENON experiment uses dual phase technology to detect scintillation and ionization simultaneously from an event in liquid xenon (LXe). The distinct ratio, be- tween scintillation and ionization, for nuclear recoil and electron recoil events provides excellent background rejection potential. The XENON detector is designed to have 3D position sensitivity down to mm scale, which provides additional event information for background rejection. Started in 2002, the XENON project made steady progress in the R&D phase during the past few years. Those include developing sensitive photon detectors in LXe, improving the energy resolution and LXe purity for detect- ing very low energy events. -
Downloading the Application Form at the Following Address
Hanno Collaborato A queSto NumeRo: IL NUOVO SAGGIATORE f. K. A. Allotey, L. Belloni, BOLLETTINO DELLA SOCIETÀ ITALIANA DI FISICA G. Benedek, A. Bettini, t. m. Brown, Nuova Serie Anno 26 • N. 5 settembre-ottobre 2010 • N. 6 novembre-dicembre 2010 f. Brunetti, G. Caglioti, R. Camuffo, A. Cammelli, e. Chiavassa, DIRETTORE RESPONSABILE ViCeDiRettoRi ComitAto scieNtifiCo L. Cifarelli, e. De Sanctis, A. Di Carlo, Luisa Cifarelli Sergio focardi G. Benedek, A. Bettini, i. Di Giovanni, R. fazio, f. ferrari, Giuseppe Grosso S. Centro, e. De Sanctis, S. focardi, R. Gatto, A. Gemma, e. iarocci, i. ortalli, L. Grodzins, G. Grosso, f. Guerra, f. Palmonari, R. Petronzio, f. iachello, W. Kininmonth, e. Longo, P. Picchi, B. Preziosi S. mancini, P. mazzoldi, A. oleandri, G. onida, V. Paticchio, f. Pedrielli, A. Reale, G. C. Righini, N. Robotti, W. Shea, i. talmi, A. tomadin, m. Zannoni, A. Zichichi Sommario 3 EDITORIALE / EDITORIAL 84 50 anni di laser. Tavola rotonda al XCVI Congresso Nazionale della SIF SCieNZA iN PRimO PIANO G. C. Righini 5 Quantum simulators and 86 Assemblea di ratifica delle elezioni quantum design delle cariche sociali della SIF per il R. fazio, A. tomadin triennio 2011-2013 10 La rivoluzione della plastica nel 87 African Physical Society settore fotovoltaico f. K. A. Allotey A. Di Carlo, A. Reale, t. m. Brown, 90 Nicola Cabibbo and his role in f. Brunetti elementary-particle theory Percorsi R. Gatto 23 The tabletop measurement of the News helicity of the neutrino 92 The Italian graduate profile survey L. Grodzins A. Cammelli 30 Giulio Racah (1909-1965): 96 Premio Fermi 2010 modern spectroscopy A. -
Dark Matter Working Group Executive Summary (Ness '02)
Dark Matter Working Group Executive Summary (NeSS ’02) Working Group Leaders: Rick Gaitskell, Brown; and Dick Arnowitt, Texas A&M. (Document Version 020925v21) Working Group Members: Craig Aalseth, PNL; Dan Akerib, CWRU; Elena Aprile, Columbia; Priscilla Cushman, U. Minnesota; John Ellis, CERN; Jonathan Feng, UC Irvine; Gilles Gerbier, Saclay; Alexander Kusenko, UCLA; Kirk McDonald, Princeton; Jeff Martoff, Temple; Richard Schnee, CWRU; and Nigel Smith, RAL. Introduction No currently observed particle is a suitable candidate for cold dark matter. The solution to the non baryonic dark matter problem, both in the universe as a whole, and in our own galaxy, may be resolved by physics found at the intersection of astronomy, high energy particle physics, and cosmology. The main candidates for this dark matter are relic particles generated, in great abundance, shortly after the Big Bang. Currently, there are 20 operating experiments designed to perform the direct detection of these particles being conducted at all the underground physics laboratories worldwide (bar one). One of them is sited at a US underground laboratory, although US sourced funding is made to six experiments. Existing results have put significant constraints on the allowed particle theories of dark matter, with one experiment claiming a positive observation, yet to be confirmed by other experiments. The planned dark matter experiments that were discussed at this workshop would be able to cover most of the parameter space of major theoretical proposals. The new physics required for particle dark matter is also expected to be discovered in the next round of high energy accelerator experiments (LHC, NLC). Theoretically and experimentally there is great complementarity between direct detection and accelerator programs. -
Testing the Purity Monitor for the XENON Dark Matter Search
Testing the Purity Monitor for the XENON Dark Matter Search Alison Andrews Laboratori Nazionali del Gran Sasso Columbia University REU August 4, 2006 1 Introduction Evidence for dark matter is found in many observed features of the universe. New- q GM(r) tonian gravitation predicts the rotational velocities of galaxies by v(r) = r , where mass is described by M(r) = 4π R ρ(r)r2dr. Actual measurements of the rota- tional velocities of galaxies, however, describe a distribution of mass where M(r) ∝ r. Fritz Zwicky studied this inconsistency in the Coma galaxy cluster in 1933, and he proposed the existence of a non-luminous dark matter. Over thirty years later, Vera Rubin supported Zwickys work with additional observations of galaxy rotational 1 curves. Their studies imply the existence of a halo of dark matter with ρ(r) ∝ r2 . Further evidence of dark matter is gravitational lensing. The General Theory of Relativity predicts the bending of light through areas of gravitational potential. Observations of this phenomenon show that the amount of bending around galaxy clusters corresponds to a greater amount of mass than is visible. Dark matter also helps to explain the formation and temperature distribution of the universe. A favored candidate for cold non-baryonic dark matter is the Weakly Interac- tive Massive Particle (or WIMP). Direct detection of WIMPs in experiments like XENON aim to detect the energy released from the elastic scattering of a WIMP off a terrestrial nucleus. 1 2 The XENON Dark Matter Search The XENON experiment aims to detect dark matter particles by measuring the scintillation and ionization of the nuclear recoils which result from the elastic collision of WIMPs with Xe nuclei using a dual phase (liquid/gas) xenon time projection chamber. -
European Physical Society
July 1989 European Physical Society Postal Address: POB 69 Location: CH-1213 Petit-Lancy 2 27, Chemin de la Vendée Supplementary Secretariat: T. (22) 793 11 30 Petit-Lancy, Geneva P. O. Box 433 Tx. 428 024 eps ch Access: H-1371 Budapest Executive Secretary: Telefax: (22) 793 13 17 Chemin du Banc-Bénit T. (1) 35 83 86 G. Thomas Past Presidents Executive Committee 1968-1970: 1980-1982: President: R.A. Ricci Members: G. Bernardini, Pisa A.R. Mackintosh, Laboratori Nazionali INFN Ph. Choquard 1970-1972: Copenhagen Via Romea 4 Institut de Physique Théorique E. Rudberg, Stockholm 1982-1984: I-35020 Legnaro (Padova) EPFL 1972-1976: J. Friedel, Orsay T. (49) 64 12 00 / 79 05 84 (direct) PHB - Ecublens H. B.G. Casimir, Eindhoven 1984-1986 Vice-President: E. Skrzypczak CH-1015 Lausanne 1976-1978: G.H. Stafford, Oxford Institute of Experimental Physics T. (21) 693 34 11 I. Ursu, Bucharest 1986-1988 University of Warsaw 1978-1980: W. Buckel, Karlsruhe O.G. Folberth A. Zichichi, Bologna 1988- Hoza 69 IBM Laboratories R.A. Ricci, Legnaro PL-00 681 Warsaw Schönaicher Strasse 220 T. (22) 28 30 31 ext. 269 D-7030 Böblingen Secretary: M. Jacob T. (7031) 16 41 00/01 Honorary Members CERN H.O.G. Alfven, Stockholm, Sweden F. Hund, Gottingen, FRG Theory Division D. Horn E. Arnaldi, Rome, Italy N. Kurti, Oxford, UK CH-1211 Geneva 23 Dept, of Physics & Astronomy G. Bernardini, Pisa, Italy Sir Nevill Mott, Milton Keynes, UK T. (22) 767 24 14 Tel-Aviv University N.N. Bogolubov, Moscow, USSR L.E.F. -
Elena Aprile Columbia University
XENON1T: First Results (arXiv:1705.06655) Elena Aprile Columbia University Patras Axion-Wimp 2017 May 15-19 Thessaloniki, Greece 1 XENON World ~130 scientists from 22 institutions Laboratori Nazionali del Gran Sasso (LNGS), Italy XENON1T Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 2 Phases of the XENON program XENON10 XENON100 XENON1T / XENONnT 2005-2007 2008-2016 2013-2018 / 2019-2023 15 cm drift TPC – 25 kg 30 cm drift TPC – 161 kg 100 cm / 144 cm drift TPC - 3200 kg / ~8000 kg Achieved (2007) Achieved (2016) Projected (2018) / Projected (2023) σ -44 2 σ -45 2 σ -47 2 σ -48 2 SI = 8.8 x 10 cm SI = 1.1 x 10 cm SI = 1.6 x 10 cm / SI = 1.6 x 10 cm Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 3 The XENON1T Experiment Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 4 The XENON1T Experiment Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 4 July 2013 Uwe Oberlack LNGS SC Meeting - 29-Oct-2013 17 Aug. 2014 XENON1T Cryostat 7 XENON1T Cryostat 7 XENON1T Cryostat 7 XENON1T Cryostat 7 XENON1T Cryostat 7 Time Projection Chamber Eur. Phys. J. C 75, no. 11, 546 (2015) Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 8 Cryostat in the Water Tank Elena Aprile (Columbia) XENON1T: First Results @ Patras Axion-WIMP 2017 9 Cherenkov Muon Veto • Active shield against muons • 84 high-QE 8'' Hamamatsu R5912 PMTs • Trigger efficiency > 99.5% for neutrons with muons in water tank • Can suppress cosmogenic background to < 0.01 events/ton/year -
Astronomy and Astrophysics
THE DECADE OF DISCOVERY IN ASTRONOMY AND ASTROPHYSICS Astronomy and Astrophysics Survey Committee Board on Physics and Astronomy Commission on Physical Sciences, Mathematics, and Applications National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1991 NATIONAL ACADEMY PRESS • 2101 Constitution Avenue, NW • Washington, DC 20418 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special compe_nces and with regard for appropriate balance. This report has been reviewed by a group other than the authors according to procedures approved by a Report Review Committee consisting of members of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. This project was supported by the Department of Energy under Grant No. DE-FGO5- 89ER40421, the National Aeronautics and Space Administration and the National Science Foundation under Grant No. AST-8901685, the Naval Research Laboratory under Contract No. N00173-90-M-9744, and the Smithsonian Institution under Purchase Order No. SF0022430000. Additional support was provided by the Maurice Ewing Earth and Planetary Sciences Fund of the National Academy of Sciences created through a gift from the Palisades Geophysical Institute, Inc., and an anonymous donor. Library of Congress Cataloging-in-Publication Data National Research Council (U.S.). Astronomy and Astrophysics Survey Committee. The decade of discovery in astronomy and astrophysics / Astronomy and Astrophysics Survey Committee, Board on Physics and Astronomy, Commission on Physical Sciences, Mathematics, and Applications, National Research Council. -
Curriculum Vitae of SABINO MATARRESE
Curriculum Vitae of SABINO MATARRESE SABINO MATARRESE is Full Professor (Professore Ordinario di Ia fascia: SSD FIS/05) in Astronomy & Astrophysics at the Physics & Astronomy Department “Galileo Galilei” of the University of Padova (UNIPD), Italy. ACADEMIC CAREER Master (Laurea) degree in Astronomy at Padova University (UNIPD) in 1980. Fellowship at SISSA, Trieste (1980-1983) with Magister Philosophiae in Astrophysics awarded in 1982. Researcher in Theoretical Physics at SISSA (1984-1986) and at UNIPD (1986-1992). Associate Professor in Astrophysics at UNIPD (1992-2000). Visiting Professor for 1-yr at the Max-Planck- Institut für Astrophysik, Garching (DE) 1999-2000. Full Professor in Astrophysics at UNIPD (2000-present). TEACHING Fundamentals of Astrophysics and Cosmology for master students at UNIPD (since 2000); Theoretical Cosmology for master students at UNIPD (since 1992); Cosmology and Particle Physics for the ICTP Diploma Course (1992); Early Universe Cosmology for PhD students at SISSA (since 1987); Cosmology for PhD students at Scuola Normale Superiore in Pisa (in the early 2000's); Cosmology for PhD students at the Gran Sasso Science Institute – GSSI, L’Aquila (since 2014). I have been the supervisor of more than 100 Master theses in Padova, Bologna, Milano, Pisa. I have been the supervisor of more than 20 PhD students in Padova, SISSA-Trieste, Pavia, Milano, Roma, GSSI-L’Aquila, Marseille. Around 30 scientists among my past master and PhD students hold faculty positions in the best universities in Italy and abroad. RESEARCH INTERESTS Cosmology and Astroparticle Physics: temperature anisotropies and polarization of the Cosmic Microwave Background (CMB); inflation in the early universe, generation of cosmological perturbations and gravitational waves; primordial non-Gaussianity; formation of large-scale structures (LSS), non-linear evolution of cosmological perturbations, models of dynamical dark energy and modified gravity, back-reaction of cosmological perturbations. -
Revised Version, October, 2016
© <2016>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ THE ORIGINS OF THE RESEARCH ON THE FOUNDATIONS OF QUANTUM MECHANICS (AND OTHER CRITICAL ACTIVITIES) IN ITALY DURING THE 1970s (Revised version, October, 2016) Angelo Baracca*, Silvio Bergia+ and Flavio Del Santo” * University of Florence, Italy, [email protected] + University of Bologna, Italy, [email protected] ― University of Vienna, Austria, [email protected] Abstract We present a reconstruction of the studies on the Foundations of Quantum Mechanics carried out in Italy at the turn of the 1960s. Actually, they preceded the revival of the interest of the American physicists towards the foundations of quantum mechanics around mid-1970s, recently reconstructed by David Kaiser in a book of 2011. An element common to both cases is the role played by the young generation, even though the respective motivations were quite different. In the US they reacted to research cuts after the war in Vietnam, and were inspired by the New Age mood. In Italy the dissatisfaction of the young generations was rooted in the student protests of 1968 and the subsequent labour and social fights, which challenged the role of scientists. The young generations of physicists searched for new scientific approaches and challenged their own scientific knowledge and role. The criticism to the foundations of quantum mechanics and the perspectives of submitting them to experimental tests were perceived as an innovative research field and this attitude was directly linked to the search for an innovative and radical approach in the history of science. -
Physics in Italy from 1870 to 1940 Antonio Casella, Silvana Galdabini
Physics in Italy from 1870 to 1940 Antonio Casella, Silvana Galdabini, Giuseppe Giuliani, Paolantonio Marazzini Gruppo Nazionale di Storia della Fisica del CNR, Unit`adi Pavia The fact that, as you know, this Conference will be followed by another one dedicated to a century of physics in Italy, has induced us to present here firstly a general overview of our research, then a brief outline af our most recent findings. Our research started in the fall of 1983 as a project limited to the pre- history of solid state physics in Italy. It began with a study of the institutional context of physical research between 1870 and 1940, with particular attention given to the four decades of our century. The analisys of scientific production in fields that would have become parts of today solid state physics has not been completed. We have studied in some detail only five topics: magnetic properties • galvanomagnetic effects • elastic properties • photoelectric effect and photoconductivity • electric conductivity. • However it must be stressed that these five topics cover about 75% of the entire production concerning `solid state'. Moreover, it is in these fields that Italian contribution has been, for several reasons, more interesting. The results of this first effort have been described and discussed, among others, in the publications reported in footnotes.1;2;3;4 The study of the pre-history of solid state physics has found a kind of accomplishment in the organisation of a meeting on `The origins of solid state physics in Italy: 1945-1960', held in Pavia in 1987. Apart from five lectures given by historians, the contributions came from physicists who contributed to the development of this field in Italy (16) and abroad (3). -
Bruno Benedetto Rossi
Intellectuals Displaced from Fascist Italy Firenze University Press 2019- Bruno Benedetto Rossi Go to personal file When he was expelled from the Università di Padova in 1938, the professor Link to other connected Lives on the move: of experimental physics from the Arcetri school was 33 years old, with an extraordinary international reputation and contacts and experiments abroad, Vinicio Barocas Sergio De Benedetti and had just married. With his young wife Nora Lombroso, he emigrated at Laura Capon Fermi Enrico Fermi once: first to Copenhagen, then to Manchester, and in June 1939 to the Guglielmo Ferrero United States. where their children were born. America, from the outset, was Leo Ferrero Nina Ferrero Raditsa his goal. Correspondence with New York and London reveals from Cesare Lombroso Gina Lombroso Ferrero September 1938 almost a competition to be able to have «one of the giants» Nora Lombroso Rossi of physics in the 20th century, whom fascism was hounding for the so-called Giuseppe (Beppo) Occhialini defence of the race. He was reappointed at the Università di Palermo in 1974, Leo Pincherle Maurizio Pincherle at the age of 70, when he was by then retired from MIT. Giulio Racah Bogdan Raditsa (Radica) Gaetano Salvemini Education Bruno was the eldest of three sons of Rino Rossi (1876-1927), an engineer who worked on the electrification of Venice, and of Lina Minerbi, from Ferrara (1868-1967). After attending the Marco Polo high school in Venice, he enrolled at the Università di Padova, and then at Bologna, where he graduated on 28 December 1927,1 defending a thesis in experimental physics on imperfect contacts between metals.