Listing 1 - 10 of 10 |
Sort by
|
Choose an application
Muons are unstable elementary particles that are found in space, which can also be produced in particle accelerators to an intensity a billion times greater than that occurring naturally. This book describes the various applications of muons across the spectrum of the sciences and engineering. Scientific research using muons relies both on their basic properties as well as the microscopic interaction between them and surrounding particles such as nuclei, electrons, atoms and molecules. Examples of research that can be carried out using muons include muon catalysis for nuclear fusion, the application of muon spin probes to study microscopic magnetic properties of advanced materials, electron labelling to help in the understanding of electron transfer in proteins, and non-destructive element analysis of the human body. Cosmic ray muons can also be used to study the inner structure of volcanoes.
Choose an application
The theory of the muon anomalous magnetic is ""particle physics in a nutshell"" and as such is interesting, exciting and difficult. The current precision of the experimental value for this quantity, improved significantly in the past several years due to experiment E821 at Brookhaven National Laboratory, is so high that a large number of subtle effects not relevant previously, become important for the interpretation of the experimental result. The theory of the muon anomalous magnetic moment is at the cutting edge of current research in particle physics and includes multiloop calculations in b
Muons. --- Muons --- Magnetic anomalies. --- Physics. --- Magnetic anomalies --- Nuclear Physics --- Physics --- Physical Sciences & Mathematics --- Anomalies, Geomagnetic --- Anomalies, Magnetic --- Geomagnetic anomalies --- Mu mesons --- Nuclear physics. --- Particle and Nuclear Physics. --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Geomagnetism --- Kaons --- Leptons (Nuclear physics) --- Mesons --- Pions --- Particles (Nuclear physics) --- Elementary particles (Physics) --- High energy physics --- Nuclear particles --- Nucleons --- Nuclear physics
Choose an application
It seems to be a strange enterprise to attempt write a physics book about a single number. It was not my idea to do so, but why not. In mathematics, maybe, one would write a book about ?. Certainly, the muon’s anomalous magnetic moment is a very special number and today re?ects almost the full spectrum of e?ects incorporated in today’s Standard Model (SM) of fun- mental interactions, including the electromagnetic, the weak and the strong forces. The muon g? 2, how it is also called, is a truly fascinating theme both from an experimental and from a theoretical point of view and it has played a crucial role in the development of QED which ?nally developed into the SM by successive inclusion of the weak and the strong interactions. The topic has fascinated a large number of particle physicists, last but not least it was always a benchmark for theory as a monitor for e?ects beyond what was known at the time. As an example, nobody could believe that a muon is just a heavy version of an electron; why should nature repeat itself, it hardly can make sense.
Muons. --- Nuclear moments. --- Magnetic anomalies. --- Muons --- Moments nucléaires --- Periodicals --- Cycles. --- Quantum theory. --- Physics --- Astrophysics --- General and Others --- Particle Physics --- Physics. --- Nuclear physics. --- Particle and Nuclear Physics. --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Anomalies, Geomagnetic --- Anomalies, Magnetic --- Geomagnetic anomalies --- Geomagnetism --- Nuclear physics --- Mu mesons --- Kaons --- Leptons (Nuclear physics) --- Mesons --- Pions
Choose an application
The muonium-antimuonium oscillation process has been studied for decades both experimentally and theoretically. Of particular interest is that such a muonium-antimuonium oscillation is totally forbidden within the Standard Model because the process violates the individual electron and muon number conservation laws by two units. Hence, its observation will be a clear signal of physics beyond the Standard Model. This thesis involves the computation of the muonium-antimuonium oscillation time scale in a variety of Standard Model extensions. First, the gauge independence of the various 1-loop contributions to this process is demonstrated in the Standard Model modified only with the inclusion of right-handed neutrinos which were used to generate light neutrino masses via the see-saw mechanism. Next the muonium-antimuonium oscillation time scale in a supersymmetric (SUSY) extension of the Standard Model is calculated. The lower bound on the ratio of the two Higgs field VEVs is also discussed by using experimental results. This Doctoral Thesis has been accepted by Purdue University, West Lafayette, USA.
Muonium. --- Muons. --- Oscillations. --- Supersymmetry. --- Muonium --- Muons --- Oscillations --- Supersymmetry --- Physics --- Physical Sciences & Mathematics --- Nuclear Physics --- Atomic Physics --- Nuclear chemistry. --- Mu mesons --- Chemistry, Nuclear --- Physics. --- Quantum field theory. --- String theory. --- Elementary particles (Physics). --- Elementary Particles, Quantum Field Theory. --- Quantum Field Theories, String Theory. --- Mathematical Methods in Physics. --- Kaons --- Leptons (Nuclear physics) --- Mesons --- Pions --- Electrons --- Nuclear reactions --- Chemistry, Physical and theoretical --- Quantum theory. --- Mathematical physics. --- Physical mathematics --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Mechanics --- Thermodynamics --- Mathematics --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Models, String --- String theory --- Relativistic quantum field theory --- Field theory (Physics) --- Quantum theory --- Relativity (Physics) --- Elementary particles (Physics) --- High energy physics --- Nuclear particles --- Nucleons --- Nuclear physics
Choose an application
This thesis presents the first measurement of charmed D0 meson production relative to the reaction plane in Pb–Pb collisions at the center-of-mass energy per nucleon-nucleon collision of √sNN = 2.76 TeV. It also showcases the measurement of the D0 production in p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurement of the D0 azimuthal anisotropy with respect to the reaction plane indicates that low- momentum charm quarks participate in the collective expansion of the high-density, strongly interacting medium formed in ultra-relativistic heavy-ion collisions, despite their large mass. This behavior can be explained by charm hadronization via recombination with light quarks from the medium and collisional energy loss. The measurement of the D0 production in p–Pb collisions is crucial to separate the effect induced by cold nuclear matter from the final- state effects induced by the hot medium formed in Pb–Pb collisions. The D0 production in p–Pb collisions is consistent with the binary collision scaling of the production in pp collisions, demonstrating that the modification of the momentum distribution observed in Pb–Pb collisions with respect to pp is predominantly induced by final-state effects such as the charm energy loss.
Physics. --- Quantum field theory. --- String theory. --- Cosmology. --- Nuclear physics. --- Heavy ions. --- Hadrons. --- Nuclear Physics, Heavy Ions, Hadrons. --- Quantum Field Theories, String Theory. --- Mesons. --- Heavy electrons --- Mesotrons --- Ions --- Electrons --- Hadrons --- Muons --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Physics --- Models, String --- String theory --- Nuclear reactions --- Relativistic quantum field theory --- Field theory (Physics) --- Quantum theory --- Relativity (Physics) --- Astronomy --- Deism --- Metaphysics
Choose an application
This book describes the application of a novel technology for beam instrumentation and luminosity measurement and first results on a cutting edge technology potentially to be used after the upgrade of the Large Hadron Collider to higher luminosity. It presents a unique diamond-based luminometer with a detailed performance study. The online bunch-by-bunch luminosity measurements made provide an invaluable feedback to the Collider for beam optimisation and the understanding of the beam dynamics. The precision of the luminosity measurement is crucial for all physics analyses. This book highlights the Van der Meer method, which is used for the calibration of the luminometers of the CMS (Compact Muon Solenoid) experiment, and describes the estimate of systematic uncertainties, e.g. due to radiation damage of sensors and electronics and uncertainties of beam parameters. For the future high-luminosity upgrade of the collider, sapphire sensors are investigated in a test beam. It is demonstrated for the first time that sapphire sensors can be used as single particle detectors. A model for the charge transport in sapphire is developed and successfully applied.
Luminescence spectroscopy. --- Muons --- Spectra. --- Physics. --- Particle acceleration. --- Physical measurements. --- Measurement. --- Particle Acceleration and Detection, Beam Physics. --- Measurement Science and Instrumentation. --- Luminescence spectrometry --- Spectrometry, Luminescence --- Spectroscopy, Luminescence --- Spectrum analysis --- Luminescent probes --- Particles (Nuclear physics) --- Acceleration (Mechanics) --- Nuclear physics --- Acceleration --- Measurement . --- Measuring --- Mensuration --- Mathematics --- Technology --- Metrology --- Physical measurements --- Measurements, Physical --- Mathematical physics --- Measurement
Choose an application
The work described in this PhD thesis is a study of a real implementation of a track-finder system which could provide reconstructed high transverse momentum tracks to the first-level trigger of the High Luminosity LHC upgrade of the CMS experiment. This is vital for the future success of CMS, since otherwise it will be impossible to achieve the trigger selectivity needed to contain the very high event rates. The unique and extremely challenging requirement of the system is to utilise the enormous volume of tracker data within a few microseconds to arrive at a trigger decision. The track-finder demonstrator described proved unequivocally, using existing hardware, that a real-time track-finder could be built using present-generation FPGA-based technology which would meet the latency and performance requirements of the future tracker. This means that more advanced hardware customised for the new CMS tracker should be even more capable, and will deliver very significant gains for the future physics returns from the LHC.
Muons. --- Mu mesons --- Kaons --- Leptons (Nuclear physics) --- Mesons --- Pions --- Particle acceleration. --- Physical measurements. --- Measurement . --- Semiconductors. --- Particle Acceleration and Detection, Beam Physics. --- Measurement Science and Instrumentation. --- Crystalline semiconductors --- Semi-conductors --- Semiconducting materials --- Semiconductor devices --- Crystals --- Electrical engineering --- Electronics --- Solid state electronics --- Measuring --- Mensuration --- Mathematics --- Technology --- Metrology --- Physical measurements --- Measurements, Physical --- Mathematical physics --- Measurement --- Particles (Nuclear physics) --- Acceleration (Mechanics) --- Nuclear physics --- Materials --- Acceleration
Choose an application
This book presents a major step forward in experimentally understanding the behavior of muon neutrinos and antineutrinos. Apart from providing the world’s first measurement of these interactions in a mostly unexplored energy region, the data presented advances the neutrino community’s preparedness to search for an asymmetry between matter and anti-matter that may very well provide the physical mechanism for the existence of our universe. The details of these measurements are preceded by brief summaries of the history of the neutrino, the phenomenon of neutrino oscillations, and a description of their interactions. Also provided are details of the experimental setup for the measurements and the muon antineutrino cross-section measurement which motivates the need for dedicated in situ background constraints. The world’s first measurement of the neutrino component of an antineutrino beam using a non-magnetized detector, as well as other crucial background constraints, are also presented. By exploiting correlated systematic uncertainties, combined measurements of the muon neutrino and antineutrino cross sections described in the book maximize the precision of the extracted information from both results.
Physics. --- Elementary Particles, Quantum Field Theory. --- Particle Acceleration and Detection, Beam Physics. --- Quantum theory. --- Particle acceleration. --- Physique --- Théorie quantique --- Particules (Physique nucléaire) --- Accélération --- Muons. --- Neutrinos. --- Physics --- Physical Sciences & Mathematics --- Atomic Physics --- Nuclear Physics --- Neutrino interactions. --- Mu mesons --- Neutret --- Collisions, Neutrino --- Interactions, Neutrino --- Neutrino collisions --- Neutrino reactions --- Reactions, Neutrino --- Elementary particles (Physics). --- Quantum field theory. --- Kaons --- Leptons (Nuclear physics) --- Mesons --- Pions --- Neutrons --- Nuclear reactions --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Mechanics --- Thermodynamics --- Particles (Nuclear physics) --- Acceleration (Mechanics) --- Nuclear physics --- Acceleration --- Relativistic quantum field theory --- Field theory (Physics) --- Quantum theory --- Relativity (Physics) --- Elementary particles (Physics) --- High energy physics --- Nuclear particles --- Nucleons
Choose an application
The galactic cosmic–ray spectrum extends over 14 orders of magnitudes in energy and about 12 orders of magnitude in intensity, and it can be studied using two different methods: via the “direct detection” of the primary cosmic rays in space or at high altitude and via the “indirect detection” of secondary particles, namely the extensive air showers produced by a primary cosmic–ray particle impinging the atmosphere. In this Special Issue, both direct and indirect measurements are presented via from various experiments. Emphasis is placed on low-energy electrons and protons that are detected in flight as well as during geomagnetic storms. As for indirect detection, the muon flux determination and modulation at ground level are described in great detail. Some of the most interesting results are hereby presented, and a couple of new techniques in cosmic–ray detection are reported.
Research & information: general --- Mathematics & science --- cosmic rays --- Extensive Air Showers --- particle detectors --- Cosmic Ray Ensembles --- ionosphere --- ELF/VLF waves --- energetic electron precipitations --- storm-time feature --- CSES --- trapped particles --- South Atlantic Anomaly --- AE9/AP9/SPM models --- radiation belts --- Poisson data --- time series --- quasi-Gaussian filter --- digital filtering --- optimization --- global minimization --- annealing simulation algorithm --- space weather --- geomagnetic storms --- LEO satellites --- digital gamma-rays spectrometer --- cosmic veto --- active shield --- muons --- muon flux periodicity --- atmospheric neutrons --- radiation dose --- passengers and flight crew --- ultrathin calorimeter --- direct measurements --- energy reconstruction --- PAMELA --- shower development universality --- cosmic ray physics --- multi-messenger astrophysics --- extensive air showers --- n/a
Listing 1 - 10 of 10 |
Sort by
|