Badertscher, A., Knecht, L., Laffranchi, M., Lussi, D., Marchionni, A., Natterer, G., ...
We constructed and operated a double phase (liquid-vapour) pure argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC) with a sensitive area of 10x10 cm$^2$ and up to 30 cm of drift...
Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector (2009)
Lightfoot, P. K., Mavrokoridis, K., Regenfus, C., Amsler, C., Badertscher, A., ...
To optimise the design of the light readout in the ArDM 1-ton liquid argon dark matter detector, a range of reflector and WLS coating combinations were investigated in several small setups, where...
Badertscher, A., Knecht, L., Laffranchi, M., Marchionni, A., Natterer, G., Otiougova, P., ...
We successfully operated a novel kind of LAr Time Projection Chamber based on a Large Electron Multiplier (LEM) readout system. The prototype, of about 3 liters active volume, is operated in...
Badertscher, A., Hasegawa, T., Kobayashi, T., Marchionni, A., Meregaglia, A., Maruyama, T., ...
In this paper, we consider the physics performance of a single far detector composed of a 100 kton next generation Liquid Argon Time Projection Chamber (LAr TPC) possibly located at shallow depth,...
Detectors and flux instrumentation for future neutrino facilities (2007)
Abe, T., Aihara, H., Andreopoulos, C., Ankowski, A., Badertscher, A., Battistoni, G., ...
This report summarises the conclusions from the detector group of the International Scoping Study of a future Neutrino Factory and Super-Beam neutrino facility. The baseline detector options for each...
Aysto, J., Badertscher, A., Bezrukov, L., Bouchez, J., Bueno, A., Busto, J., ...
This document reports on a series of experimental and theoretical studies conducted to assess the astro-particle physics potential of three future large-scale particle detectors proposed in Europe as...
Autiero, D., Aysto, J., Badertscher, A., Bezrukov, L., Bouchez, J., Bueno, A., ...
This document reports on a series of experimental and theoretical studies conducted to assess the astro-particle physics potential of three future large-scale particle detectors proposed in Europe as...
An Improved Limit on Invisible Decays of Positronium (2007)
Badertscher, A., Crivelli, P., Fetscher, W., Gendotti, U., Gninenko, S., Postoev, V., ...
The results of a new search for positronium decays into invisible final states are reported. Convincing detection of this decay mode would be a strong evid ence for new physics beyond the Standard...
First events from the CNGS neutrino beam detected in the OPERA experiment (2007)
Acquafredda, R., Agafonova, N., Ambrosio, M., Anokhina, A., Aoki, S., Ariga, A., ...
The OPERA neutrino detector at the underground Gran Sasso Laboratory (LNGS) was designed to perform the first detection of neutrino oscillations in appearance mode, through the study of nu_mu to...
Aysto, J., Badertscher, A., Bezrukov, L., Bouchez, J., Bueno, A., Busto, J., ...
This document reports on a series of experimental and theoretical studies conducted to assess the astro-particle physics potential of three future large-scale particle detectors proposed in Europe as...
An Improved Limit on Invisible Decays of Positronium (2006)
Badertscher, A., Crivelli, P., Fetscher, W., Gendotti, U., Gninenko, S., Postoev, V., ...
The results of a new search for positronium decays into invisible final states are reported. Convincing detection of this decay mode would be a strong evid ence for new physics beyond the Standard...
Ankowski, A, Antonello, M, Aprili, P, Arneodo, F, Badertscher, A, Baiboussinov, B, ...
The ICARUS collaboration has demonstrated, following the operation of a 600 ton (T600) detector at shallow depth, that the technique based on liquid Argon TPCs is now mature. The study of rare...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A.S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A.S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A.S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A. S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
Badertscher, A., Belov, A., Crivelli, P., Felcini, M., Fetscher, W., Gninenko, S. N., ...
Mirror matter is a possible dark matter candidate. It is predicted to exist if parity is an unbroken symmetry of the vacuum. The existence of the mirror matter, which in addition to gravity is...
First results from a Liquid Argon Time Projection Chamber in a Magnetic Field (2005)
Badertscher, A., Laffranchi, M., Meregaglia, A., Mueller, A., Rubbia, A.
A small liquid argon Time Projection Chamber (LAr TPC) was operated for the first time in a magnetic field of 0.55 Tesla. The imaging properties of the detector were not affected by the magnetic...
A new experiment to search for the invisible decay of the orthopositronium (2005)
Crivelli, P., Badertscher, A., Fetscher, W., Gninenko, S.N., Peigneux, J.P., Rubbia, A., ...
We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A.S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
Alberola, N., Anthonioz, T., Badertscher, A., Bas, C., Belov, A.S., Crivelli, P., ...
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse...
A Proposal for a Detector 2 km Away From the T2K Neutrino Source (2005)
Kearns, E., Litos, M., Raaf, J., Stone, J., Sulak, L.R., Bouchez, J., ...
We propose building a detector site 2km from the neutrino production point of the the T2K experiment. At this distance, almost the same neutrino flux is measured as that seen at Super-K 295 km away....
A Proposal for a Detector 2 km Away From the T2K Neutrino Source (2005)
Kearns, E., Litos, M., Raaf, J., Stone, J., Sulak, L.R., Bouchez, J., ...
We propose building a detector site 2km from the neutrino production point of the the T2K experiment. At this distance, almost the same neutrino flux is measured as that seen at Super-K 295 km away....
A Proposal for a Detector 2 km Away From the T2K Neutrino Source (2005)
Kearns, E., Litos, M., Raaf, J., Stone, J., Sulak, L.R., Bouchez, J., ...
We propose building a detector site 2km from the neutrino production point of the the T2K experiment. At this distance, almost the same neutrino flux is measured as that seen at Super-K 295 km away....
Development of a novel high-sensivitiy LAr purity monitor based on an $\alpha$-source (2004)
Badertscher, A., Laffranchi, M., Rubbia, A.
A novel liquid argon (LAr) purity monitor was developed with a sensitivity to electronegative impurities of the order of ppb (O$_2$ equivalent). Such a high purity is e.g. needed in a LAr drift...
First operation of a liquid Argon TPC embedded in a magnetic field (2004)
Badertscher, A., Laffranchi, M., Meregaglia, A., Rubbia, A.
We have operated for the first time a liquid Argon TPC immersed in a magnetic field up to 0.55 T. We show that the imaging properties of the detector are not affected by the presence of the magnetic...
Design, construction and tests of the ICARUS T600 detector (2004)
Amerio, S., Amoruso, S., Antonello, M., Aprili, P., Armenante, M., Arneodo, F., ...
We have constructed and operated the ICARUS T600 liquid argon (LAr) time projection chamber (TPC). The ICARUS T600 detector is the largest LAr TPC ever built, with a size of about 500 tons of fully...
A new experiment to search for the invisible decay of the orthopositronium (2004)
Badertscher, A., Crivelli, P., Fetscher, W., Gninenko, S. N., Peigneux, J. P., Rubbia, A., ...
We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would...
Badertscher, A., Belov, A., Crivelli, P., Felcini, M., Fetscher, W., Gninenko, S. N., ...
Mirror matter is a possible dark matter candidate. It is predicted to exist if parity is an unbroken symmetry of the vacuum. The existence of the mirror matter, which in addition to gravity is...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
Positron Annihilation Lifetime Spectroscopy (PALS)is an increasingly important analysis technique that can be efficiently used to characterize the free volume sizes in porous silica and polymer thin...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
This document presents the design of a pulsed slow positron beam to study porous silicon and polymer films. Slow positrons are produced with a conven- tional technique using a ^22Na source and a...
A new experiment to search for the invisible decay of the orthopositronium (2004)
Crivelli, P., Badertscher, A., Fetscher, W., Gninenko, S.N., Peigneux, J.P., Rubbia, A., ...
We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would...
Badertscher, A., Belov, A., Crivelli, P., Felcini, M., Fetscher, W., Gninenko, S. N., ...
Mirror matter is a possible dark matter candidate. It is predicted to exist if parity is an unbroken symmetry of the vacuum. The existence of the mirror matter, which in addition to gravity is...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
Positron Annihilation Lifetime Spectroscopy (PALS)is an increasingly important analysis technique that can be efficiently used to characterize the free volume sizes in porous silica and polymer thin...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
This document presents the design of a pulsed slow positron beam to study porous silicon and polymer films. Slow positrons are produced with a conven- tional technique using a ^22Na source and a...
A new experiment to search for the invisible decay of the orthopositronium (2004)
Crivelli, P., Badertscher, A., Fetscher, W., Gninenko, S.N., Peigneux, J.P., Rubbia, A., ...
We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
Positron Annihilation Lifetime Spectroscopy (PALS)is an increasingly important analysis technique that can be efficiently used to characterize the free volume sizes in porous silica and polymer thin...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
This document presents the design of a pulsed slow positron beam to study porous silicon and polymer films. Slow positrons are produced with a conven- tional technique using a ^22Na source and a...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
This document presents the design of a pulsed slow positron beam to study porous silicon and polymer films. Slow positrons are produced with a conven- tional technique using a ^22Na source and a...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
Positron Annihilation Lifetime Spectroscopy (PALS)is an increasingly important analysis technique that can be efficiently used to characterize the free volume sizes in porous silica and polymer thin...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
This document presents the design of a pulsed slow positron beam to study porous silicon and polymer films. Slow positrons are produced with a conven- tional technique using a ^22Na source and a...
Badertscher, A., Crivelli, P., Rubbia, A., Belov, A.S., Golubev, N.V., Gninenko, S.N., ...
Positron Annihilation Lifetime Spectroscopy (PALS)is an increasingly important analysis technique that can be efficiently used to characterize the free volume sizes in porous silica and polymer thin...
Measurement of the muon decay spectrum with the ICARUS liquid Argon TPC (2003)
Amoruso, S, Antonello, M, Aprili, P, Arneodo, F, Badertscher, A, Baiboussinov, B, ...
Examples are given which prove the ICARUS detector quality through relevant physics measurements. We study the muon decay energy spectrum from a sample of stopping muon events acquired during the...
Badertscher, A, Belov, A, Crivelli, P, Felcini, M, Fetscher, W, Gninenko, S N, ...
Mirror matter is a possible dark matter candidate. It is predicted to exist if parity is an unbroken symmetry of the vacuum. The existence of the mirror matter, which in addition to gravity is...
Badertscher, A., Belov, A., Crivelli, P., Felcini, M., Fetscher, W., Gninenko, S. N., ...
Mirror matter is a possible dark matter candidate. It is predicted to exist if parity is an unbroken symmetry of the vacuum. The existence of the mirror matter, which in addition to gravity is...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S.N., Goloubev, N.A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S.N., Goloubev, N.A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S.N., Goloubev, N.A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A, Crivelli, P, Felcini, Marta, Gninenko, S N, Goloubev, N A, Nédélec, P, ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S. N., Goloubev, N. A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S.N., Goloubev, N.A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
Search for an exotic three-body decay of orthopositronium (2002)
Badertscher, A., Crivelli, P., Felcini, M., Gninenko, S.N., Goloubev, N.A., Nedelec, P., ...
We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the...
A Feasibility study of a neutrino source based on a muon storage ring (2000)
Holtkamp, N, Finley, DA, Anderson, T, Andreev, N, Ankenbrandt, CM, Assadi, S, ...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
Kinetic Energy Distribution of $\pi^{-}p$ Atoms in Liquid and Gaseous Hydrogen (1999)
Badertscher, A, Daum, M, Goudsmit, P F A, Janousch, M, Kettle, P R, Koglin, J E, ...
Neutrino Factory Collaboration, Ayres, D, Goodman, M, Hassanein, A, Joffe-Minor, T, Krakauer, D, ...
Working group on $\pi\pi$ and $\pi$N interactions - Summary (1997)
Meißner, Ulf-G., Sevior, Martin, Badertscher, A., Borasoy, B., Büttiker, P., Höhler, G., ...
This is the summary of the working group on $\pi\pi$ and $\pi$N interactions of the Chiral Dynamics Workshop in Mainz, September 1-5, 1997. Each talk is represented by an extended one page abstract....
Destructive interference of s and p waves in $180^{o} \pi^{-}p$ elastic scattering (1997)
Janousch, M, Badertscher, A, Goudsmit, P F A, Leisi, H J, Matsinos, E, Weber, P, ...