Scientific Report 2000 Volume I Particles and Matter
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PAUL SCHERRER INSTITUT ISSN 1423-7296 March 2001 Scientific Report 2000 Volume I Particles and Matter ed. by: J. Gobrecht, H. Gaggeler, D. Herlach, K. Junker, P.-R. Kettle, P. Kubik, A. Zehnder CH-5232 Villigen PSI Switzerland Telephone: +41 56 310 21 11 Telefax:+ 41 56 310 21 99 http://www.psi.ch PLEASE BE AWARE THAT ALL OF THE MISSING PAGES IN THIS DOCUMENT WERE ORIGINALLY BLANK TABLE OF CONTENTS Introduction. i Laboratory for Particle Physics 3 Foreword 4 Particle Physics Theory Theory (I) 5 Theory (II) 6 Theory (III) 7 Experiments Search for muon - electron conversion on gold 8 A precise measurement of the K+ —> 7t°e+v decay rate 9 Does the KARMEN time anomaly originate from a beam-correlated background 10 Precision measurement of the mass of the charged pion 11 A precision measurement of the michel parameter % in polarized muon decay 12 Precision measurement of singlet (ip capture in hydrogen 13 Pionic hydrogen 14 Rare A^-decays in flight (Brookhaven AGS E865) 15 Higgs candidates in eV interactions at -JJ = 206.6 GeV 16 Nuclear Physics Test of supersymmetry using in-beam spectroscopy of1% Au 17 Study of 100Ru at the philips cyclotron and at SINQ 18 Modelling fission in nuclear reactions: I reaction cross-sections 19 Modelling fission in nuclear reactions: II mass distribution 20 Measuring itD3He fusion 21 Atomic Physics High-resolution study of heavy-ion-induced thorium and uranium Ly x-ray spectra 22 First direct observation of long-lived 2S-states in muonic hydrogen 23 Detectors and Experimental Facilities Development work for the CMS pixel detector 24 Development of event triggers for CMS based on the picel detector 25 Polarized nuclei in plastic scintillators: New tools for spin physics 26 An ultracold neutron facility at PSI 27 The low energy muon beam for the muonic hydrogen lamb shift experiment 28 Laboratory for Astrophysics 29 Foreword 30 The first year of XMM-Newton 31 XMM-Newton: from calibration to first results 32 Free-floating planets in stellar clusters 33 Spatial analysis of solar type III events associated with narrowband spikes at metric wavelengths 34 Hard x-rays and decimetric radio correlations 35 Shape and geometry of galaxy clusters and the SZ- effect 36 Baryonic dark matter in clusters and spiral galaxies 37 First data from SREM in space 38 Repairing the imaging system of the high-energy solar spectroscopic imager (HESSI) after JPL-mishap 39 Star calibration of the HESSI roll angle system (RAS) 40 The aspect data proccesor (ADP) for the HESSI imager 41 The HESSI solar aspect system (SAS) 42 Fabrication of transition edge sensors (TES) devices 43 Arrays of superconducting photon detectors 44 Transition edge sensors for astronomical applications 45 Operating of the proton irradiation facility - concise summary 46 Standard radiation environment monitor SREM as a successful example of technology transfer and industrial cooperation 47 Comparison of calibration results from PROBA standard radiation environment monitor with Monte-Carlo simulations 48 Laboratory for Muon Spin Spectroscopy 49 Foreword 50 Superconductivity Oxygen isotope effect on magnetic penetration depth in underdoped YxPr1.xBa2Cu3O7.7 51 Magnetism in tetragonal La2.x.ySrxREyCuO4 52 Cation size disorder-induced crossover from superconductivity to magnetic order in Li 85M0.i5CuO4 53 Low energy excitations and inhomogeneous magnetism in electron doped cuprates 54 Effect of an applied current on the flux line lattuce of NbSe2 55 Flux line lattice of 3d superconductors 56 Magnetism (partial overlap with Superconductivity) Magnetic ordering in ammoniated alkali fullerides 57 Spin dynamics in novel transition metals 58 Effects of dimensionality and quantum criticality on heavy-fermion superconductivity and magnetism 59 Glassy spin dynamics in non-fermi-liquid UCu5.xPdx, x = 1.0 and 1.5 60 Study of the magnetic properties of Ce3Pd20Si6 and Ce3Pd20Ge6 compounds 61 \iSR magnetic studies of the heavy fermion compound Ce7Ni3 62 Magnetic properties of CeNiSn doped with Cu or Pt 63 \iSR studies of the Kondo insulators Yb!_xLuxB12 64 The magnetism of YFe6Al6 65 Macroscopic and local magnetic moments in Si-doped CuGeO3 with neutron and [iSR studies 66 Spin fluctuations in the triangular antiferromagnet CsNiBr3 67 Low temperature spin fluctuations in spin-liquid Yb3Ga5Oi2 68 Study of U- and RE-intermetallic compounds exhibiting quadrupolar and magnetic order 69 Comparative study of the magnetic properties of rare earth intermetailic compounds, complementing neutron scattering experiments 70 Magnetic correlations in one dimensional spin systems 71 \iSR and spin-vacancy-induced magnetism in low-dimensional quantum systems 72 \iSR studies of the electron-doped Ca^ SmxMnO3 73 Zero and longitudinal field relaxation in low doping manganites: search for static and dynamic ferromagnetic clusters 74 A [iSR study of the low temperature magnetic properties of the molecular cluster Fe8 75 \iSR on monodisperse nano-scale Pd clusters at low temperatures 76 Study of the dynamic and structure features of magnetism in holmium 77 Spontaneous magnetic ordering in sodium electro sodalite 78 Formation of Condon domains in lead at very low temperatures 79 Semiconductors and Liquid Crystals HSR dynamics of liquid crystals studied by ALC 80 HSR in II-VI solar cell materials 81 Muon(ium) in nitrogen-rich diamond with H2/H3 centres 82 Measurement of relaxation rate and paramagnetic frequency shift of the negative muon spin precession in silicon 83 Chemistry Hydrocarbon activation in zeolites; insights through EPR and jiSR 84 "The blue-ridge mountains of Virginia" 85 ALC-jiSR on aza-cyclohexadienyl radicals in pyridinium salts 86 Interactions of cosurfactants with surfactant bilayers 87 Research and Development with Low Energy Muons Diffusion of muons in metallic multilayers 88 Emission of epithermal muons from a patterned moderator 89 Thickness dependence of the efficiency of s-Ar and s-N2 moderators 90 Anew surface muon beam 91 Laboratory for Micro and Nano Technology 93 Foreword 94 Nano Factory and X-ray Optics Rheology and pattern formation during hot embossing of thin polymer films 95 Nanofabrication with hot embossing and electroforming 96 V-groove replication: a tool for quality control of a compact disc injection molding process 97 Laser ablation lithography using diffractive phase masks 98 High resolution scanning x-ray fluorescence microscopy 99 Tunable wet etched diffractive optics for hard x-rays 100 Micromechanical cantilevers for thermal analysis 101 Silicon Based Nanomaterials and Nanoelectronics Single hole transistor in a p-Si/SiGe quantum well 102 Electro- and photoluminescence of C-induced Ge islands embedded in Si 103 Optical and structural analysis of Ge quantum dots embedded in strained Si quantum wells grown on patterned substrates 104 Modeling of the c(4x4) surface reconstruction 105 Strain fields in C-induced Ge dots 106 Modifications of the Si (100) surface 107 Thermophotovoltaics - system, photocells and potential 108 TEM investigation of an ordering phenomenon in Alo.5Gao.5As 109 Application of the quantum cascade laser principle to the Si/SiGe material system 110 Structural investigations of Si/SiGe cascade samples Ill Formation of arbitrary 3-dimensional nano-structures from strained Si/SiGe double layers 112 Molecular Nanotechnology Photolithographic generation of protein micropatterns 113 Deposition system for single molecule experiments 114 Extracellular stimulation of neurons cultured on microelectrode arrays 115 Nanostructred chips for the analysis of individual proteins 116 Electrochemistry of stacked layers of redox labeled proteins 117 Production and redox labelling of antibodies against B-lactam antibiotics 118 Laboratory for Radio- and Environmental Chemistry 119 Foreword 120 Heavy Elements Fluoride complexation of rutherfordium (Rf, element 104) 121 Thermochemical predictions of the chemical properties of bohrium (Bh, Element 107) 122 Stability of group 8 tetroxides MeO4 (Me=Ru, Os, Hs) and their adsorption behavior on quartz 123 Evaluation of the enthalpy of adsorption of OsO4 on quartz 124 The interaction of element 112 with metal surfaces 125 A first attempt to chemically identify element 112 126 On-line thermochromatographic studies of radon as a presumable pseudohomologue of the elements 112 and 114 127 Vander Waals interaction of atoms of elements 112, 114, and 118 with solid surfaces 128 Semi-empirical calculation of adsorption entropies 129 Selective gas-phase transport of short-lived, carried-free iodine isotopes from a 252Cf fission source 130 a-peak shift in cooled PIN-diode detectors 131 Surface Chemistry Transport yields of selenium nuclides at the SINQ gas-jet facility 132 Reaction of HO86Br with sodium bromide aerosol 133 The adsorption of NO, NO2 and HONO on ice 134 The adsorption of peroxyacetyl nitrate on ice 135 The reaction of HNO3 with sea-salt aerosol particles 136 Modelling the heterogeneous reaction of NO2 on diesel soot 137 Measurement of the HONO emission from a diesel engine 138 Significant nitrite formation in diesel exhaust 139 Analytical Chemistry An Alpine ice-core record of anthropogenic HF and HC1 emissions 140 North-South deposition gradients of trace species in the Alps 141 Electrical conductivity measurement on an ice core from the Illimani (6430 m, 16°39'S, 67°47'W), Bolivia 142 Seasonal record of glaciochemical and isotopic signals in a shallow ice core from Chimborazo, Ecuador 143 Glaciological and chemical survey at glaciar Esmeralda, Chile 144 The influence of sublimation on stable isotope records