fundamentals of vacuum technology
... Moreover, the present edition of the ÒFundamentalsÓ goes into much greater detail on some topics. Among these are residual gas analyses at low pressures, measurement of low pressures, pressure monitoring, open- and closed-loop pressure control, and leaks and their detection. Included for the first t ...
... Moreover, the present edition of the ÒFundamentalsÓ goes into much greater detail on some topics. Among these are residual gas analyses at low pressures, measurement of low pressures, pressure monitoring, open- and closed-loop pressure control, and leaks and their detection. Included for the first t ...
Searching for Solar Axions in the eV
... A possible solution to the strong CP-problem was formulated by Roberto Peccei and Helen Quinn in 1977. Unlike other attempted answers to this open question, they managed to explain the apparent conservation of CP in strong interactions by introducing just one additional symmetry, which is now referr ...
... A possible solution to the strong CP-problem was formulated by Roberto Peccei and Helen Quinn in 1977. Unlike other attempted answers to this open question, they managed to explain the apparent conservation of CP in strong interactions by introducing just one additional symmetry, which is now referr ...
Are mirror worlds opaque?
... thermore, the mirror proton is stable for the same reason that the ordinary proton is stable, and that is, the interactions of the mirror particles conserve a mirror baryon number. The mirror particles are not produced in Laboratory experiments just because they couple very weakly to the ordinary pa ...
... thermore, the mirror proton is stable for the same reason that the ordinary proton is stable, and that is, the interactions of the mirror particles conserve a mirror baryon number. The mirror particles are not produced in Laboratory experiments just because they couple very weakly to the ordinary pa ...
Hot and Dense Matter in Compact Stars – From Nuclei to Quarks
... This dissertation deals with the equation of state of hot and dense matter in compact stars, with special focus on first order phase transitions. A general classification of first order phase transitions is given and the properties of mixed phases are discussed. Aspects of nucleation and the role of lo ...
... This dissertation deals with the equation of state of hot and dense matter in compact stars, with special focus on first order phase transitions. A general classification of first order phase transitions is given and the properties of mixed phases are discussed. Aspects of nucleation and the role of lo ...
pdf
... were great role models both inside and outside of lab. They helped Aaron and me get our first apartment at 4 Marion (right below theirs). My discussions with Ananth (which invariably ended with him telling me I was crazy) were a constant source of amusement. Deep’s level-headiness when those around ...
... were great role models both inside and outside of lab. They helped Aaron and me get our first apartment at 4 Marion (right below theirs). My discussions with Ananth (which invariably ended with him telling me I was crazy) were a constant source of amusement. Deep’s level-headiness when those around ...
The Cosmological Constant Problem, an Inspiration for New Physics
... such, that it takes a lot of energy to curve it, while stretching it is (almost) for free, since the cosmological constant is (almost) zero. This is quite contrary to properties of objects from every day experience, where bending requires much less energy than stretching. As a nice example, Pauli in ...
... such, that it takes a lot of energy to curve it, while stretching it is (almost) for free, since the cosmological constant is (almost) zero. This is quite contrary to properties of objects from every day experience, where bending requires much less energy than stretching. As a nice example, Pauli in ...
Soluciones estacionarias con campo escalar y el efecto de su
... In the context of scalar-tensor theories, electrically charged asymptotically locally AdS and asymptotically flat black hole solutions are found for a particular case of the Horndeski action. The solution is given for all dimensions and a new class of asymptotically locally flat spherically symmetri ...
... In the context of scalar-tensor theories, electrically charged asymptotically locally AdS and asymptotically flat black hole solutions are found for a particular case of the Horndeski action. The solution is given for all dimensions and a new class of asymptotically locally flat spherically symmetri ...
Phenomenology Beyond the Standard Model
... The Higgs Boson and Cosmology • Changed the state of the Universe when it was about 10-12 seconds old • May have generated then the matter in the Universe • Contributes (too much) to today’s dark energy • A related inflaton might have expanded the Universe when it was about 10-35 seconds old ...
... The Higgs Boson and Cosmology • Changed the state of the Universe when it was about 10-12 seconds old • May have generated then the matter in the Universe • Contributes (too much) to today’s dark energy • A related inflaton might have expanded the Universe when it was about 10-35 seconds old ...
Phenomenology of Extra Dimensions
... answer is, for short distances, rather poorly compared with all the other forces. With hindsight, we really should not be surprised since gravity is so weak in comparison to the other forces. Nevertheless, it was the genius of ADD to exploit this fact in constructing their model. There have for year ...
... answer is, for short distances, rather poorly compared with all the other forces. With hindsight, we really should not be surprised since gravity is so weak in comparison to the other forces. Nevertheless, it was the genius of ADD to exploit this fact in constructing their model. There have for year ...
Gauge symmetries in Quantum Gravity and String Theory
... This thesis explores the spectrum of states charged under global and gauge symmetries in String Theory, and the constraints that they pose on specific phenomenological models. On one hand, we use supercritical theories (those with more than 10 or 26 dimensions) to embed discrete gauge symmetries of ...
... This thesis explores the spectrum of states charged under global and gauge symmetries in String Theory, and the constraints that they pose on specific phenomenological models. On one hand, we use supercritical theories (those with more than 10 or 26 dimensions) to embed discrete gauge symmetries of ...
Properties of rapidly rotating PNS with antikaon condensates at
... have been observed in our galaxy[12], many of them can have a period of as low as a millisecond, or a frequency that is greater than 500 Hz. The fastest known pulsar, PSR J1748-2446ad, that has been observed to date was discovered [13] in 2004. It has a rotation period of 1.397 ms and frequency of 7 ...
... have been observed in our galaxy[12], many of them can have a period of as low as a millisecond, or a frequency that is greater than 500 Hz. The fastest known pulsar, PSR J1748-2446ad, that has been observed to date was discovered [13] in 2004. It has a rotation period of 1.397 ms and frequency of 7 ...
doc
... DOES THE CRONIN PEAK DISAPPEAR? P34 ARE JETS QUENCHED IN COLD NUCLEI? P35 ENERGY LOSS OF HIGH ENERGY PARTONS IN HOT QGP AND HIGH PT PHOTONS P35 Calculation of Hard Probe - Medium Interactions in 3D-Hydrodynamics P36 Quark and gluon jet conversions in the quark-gluon plasma P36 Parton Energy Loss at ...
... DOES THE CRONIN PEAK DISAPPEAR? P34 ARE JETS QUENCHED IN COLD NUCLEI? P35 ENERGY LOSS OF HIGH ENERGY PARTONS IN HOT QGP AND HIGH PT PHOTONS P35 Calculation of Hard Probe - Medium Interactions in 3D-Hydrodynamics P36 Quark and gluon jet conversions in the quark-gluon plasma P36 Parton Energy Loss at ...
universidad complutense de madrid facultad de ciencias f sicas
... The entire phase diagram is of physical interest: the phase boundary, the critical end-point or the new exotic phases. In particular, the zone at zero baryonic chemical potential is of great relevance. It is accepted that the early structure of the Universe has cooled down through this zone, after t ...
... The entire phase diagram is of physical interest: the phase boundary, the critical end-point or the new exotic phases. In particular, the zone at zero baryonic chemical potential is of great relevance. It is accepted that the early structure of the Universe has cooled down through this zone, after t ...
Untitled
... In Part H, the essential material is contained in Chapters 8-11. In these chapters, we develop the necessary material to understand the Standard Model, that is, path integrals, gauge theory, spontaneous symmetry breaking, and phenomenology. This forms the heart of this section, and cannot be omitted ...
... In Part H, the essential material is contained in Chapters 8-11. In these chapters, we develop the necessary material to understand the Standard Model, that is, path integrals, gauge theory, spontaneous symmetry breaking, and phenomenology. This forms the heart of this section, and cannot be omitted ...
PDF - at www.arxiv.org.
... larger than the observed value to explain the acceleration. This theoretical complication has lead to alternative scenarios in order to explain the late time acceleration of the Universe, and also to solve the vacuum energy problem. As explained by Weinberg [2], one has to modify General Relativity ...
... larger than the observed value to explain the acceleration. This theoretical complication has lead to alternative scenarios in order to explain the late time acceleration of the Universe, and also to solve the vacuum energy problem. As explained by Weinberg [2], one has to modify General Relativity ...
A T S O U
... of xF and p2⊥ are compared with the LEBC-EHS and LEBC-MPS experiments’ data for D-mesons ...
... of xF and p2⊥ are compared with the LEBC-EHS and LEBC-MPS experiments’ data for D-mesons ...
Xenophobic dark matter
... For fn / f p = 1 current XENON100 bounds tightly constrain all possible signals over the entire range of viable masses. For fn / f p = −0.7 the constraints weaken considerably, with the reported CDMS-Si ROI almost entirely avoiding XENON100 bounds, and the CoGeNT ROI (as well as a ROI corresponding ...
... For fn / f p = 1 current XENON100 bounds tightly constrain all possible signals over the entire range of viable masses. For fn / f p = −0.7 the constraints weaken considerably, with the reported CDMS-Si ROI almost entirely avoiding XENON100 bounds, and the CoGeNT ROI (as well as a ROI corresponding ...
Axion Cosmology
... axion plus few lighter ALPs (local axions) with f ~ M_s ~ M_P/sqrt(V) ~ 10^11 GeV plus saxions of mass M_P/V ~ 10 TeV plus few light ALPs (non-local ones) with f/C ~ M_P ~ 10^18 GeV only one non-local ALP may have f > M_s ~ 10^11 GeV ...
... axion plus few lighter ALPs (local axions) with f ~ M_s ~ M_P/sqrt(V) ~ 10^11 GeV plus saxions of mass M_P/V ~ 10 TeV plus few light ALPs (non-local ones) with f/C ~ M_P ~ 10^18 GeV only one non-local ALP may have f > M_s ~ 10^11 GeV ...
Magnetic Photon Splitting: the S-Matrix Formulation in the Landau
... includes a scaling of mc2 /h̄ for photon frequencies ω . In the spirit of this convention, we choose to use the symbol ε to represent dimensionless electron energies and reserve E ( = εmc2 ) to denote “dimensional” energies as in [1]. In addition, the magnetic field will be expressed in terms of the ...
... includes a scaling of mc2 /h̄ for photon frequencies ω . In the spirit of this convention, we choose to use the symbol ε to represent dimensionless electron energies and reserve E ( = εmc2 ) to denote “dimensional” energies as in [1]. In addition, the magnetic field will be expressed in terms of the ...
Design, Fabrication and Working of a Wall Climbing Robot
... The purpose of the project is to develop a robot that can climb wall. Keeping this in view, our purpose was to build a machine that can stick on walls and climb upwards. After studying the literature written by the previous searchers, suction cups technique was used to stick the robot to the wall as ...
... The purpose of the project is to develop a robot that can climb wall. Keeping this in view, our purpose was to build a machine that can stick on walls and climb upwards. After studying the literature written by the previous searchers, suction cups technique was used to stick the robot to the wall as ...
Introduction to Cosmology and String Theory
... 3600, or about 50 000 years after the big bang. After this crossover, density inhomogeneities can grow only logarithmically with a while they grow linearly with a during radiation domination. At a redshift of around z ~ 1100, or about 380 000 years after the big bang, recombination of nuclei and ele ...
... 3600, or about 50 000 years after the big bang. After this crossover, density inhomogeneities can grow only logarithmically with a while they grow linearly with a during radiation domination. At a redshift of around z ~ 1100, or about 380 000 years after the big bang, recombination of nuclei and ele ...
Andreas Kronfeld
... Discovery of the supersymmetric string Elucidation of the role of the Higgs boson Development and application of pQCD The case for the SSC and LHC Discovery of MHV amplitudes Invention of heavy-quark effective theory Elucidation of and predictions with lattice QCD Proposals of TeV strings & extra di ...
... Discovery of the supersymmetric string Elucidation of the role of the Higgs boson Development and application of pQCD The case for the SSC and LHC Discovery of MHV amplitudes Invention of heavy-quark effective theory Elucidation of and predictions with lattice QCD Proposals of TeV strings & extra di ...
Patterns of Electro-magnetic Response in Topological Semi
... exhibit any non-vanishing topological properties. On the other hand, weak topological insulators (WTIs) are anisotropic, gapped topological phases that are protected by translation symmetry and characterized by a vector topological invariant ~ν . The fact that the topological invariant is a vector, ...
... exhibit any non-vanishing topological properties. On the other hand, weak topological insulators (WTIs) are anisotropic, gapped topological phases that are protected by translation symmetry and characterized by a vector topological invariant ~ν . The fact that the topological invariant is a vector, ...
An introduction to lattice gauge theory and spin systems
... important role in the physics of lattice gauge theories. The first is the occurrence of topological excitations, which can label the, phases of some of these models and determine the character of their ground states. The second is asymptotic freedom and the possibility that non-Abelian gauge theorie ...
... important role in the physics of lattice gauge theories. The first is the occurrence of topological excitations, which can label the, phases of some of these models and determine the character of their ground states. The second is asymptotic freedom and the possibility that non-Abelian gauge theorie ...
The evolution of ion charge states in cathodic vacuum
... Cathodic vacuum arc plasmas are among the most mysterious, difficult to understand, and uncontrolled plasma generators. Cathodic vacuum arc discharges are characterized by the formation of very small, non-stationary cathode spots – locations of extreme current and power densities – while the voltage ...
... Cathodic vacuum arc plasmas are among the most mysterious, difficult to understand, and uncontrolled plasma generators. Cathodic vacuum arc discharges are characterized by the formation of very small, non-stationary cathode spots – locations of extreme current and power densities – while the voltage ...