Search results for "QC"

showing 10 items of 3477 documents

Investigation by raman spectroscopy of the decomposition process of HKUST-1 upon exposure to air

2016

We report an experimental investigation by Raman spectroscopy of the decomposition process of Metal-Organic Framework (MOF) HKUST-1 upon exposure to air moisture (T=300 K, 70% relative humidity). The data collected here are compared with the indications obtained from a model of the process of decomposition of this material proposed in literature. In agreement with that model, the reported Raman measurements indicate that for exposure times longer than 20 days relevant irreversible processes take place, which are related to the occurrence of the hydrolysis of Cu-O bonds. These processes induce small but detectable variations of the peak positions and intensities of the main Raman bands of th…

Atomic and Molecular Physics and OpticArticle SubjectAnalytical chemistry02 engineering and technology010402 general chemistry01 natural sciencesAnalytical Chemistrysymbols.namesakeRaman bandlcsh:QC350-467Relative humiditySpectroscopySpectroscopyMoistureChemistryChemical process of decomposition021001 nanoscience & nanotechnologyDecompositionAtomic and Molecular Physics and Optics0104 chemical sciencesScientific methodsymbols0210 nano-technologyRaman spectroscopylcsh:Optics. LightAnalytical Chemistry; Atomic and Molecular Physics and Optics; Spectroscopy
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Inverse problem for tripotential measures in the study of buried cavities

1996

This paper presents a solution to the inverse electrical problem for the interpretation of apparent resistivity anomalies due to empty buried cavities of quasi-spherical shape when tripotential measures are carried out. The anomalies of the apparent resistivities ra,rb andrg,and the composed resistivitiesrmand rt were previously calculated for a sufficient class of spherical models of resistivity anomalies. Then, for the whole class of models, some functionals of spatial distribution of the apparent and composed resistivity were identified and analyzed. They represent the average characteristics of the anomalies and, depending in a simple way on the fundamental parameters of the sources of …

Average diametercavitieslcsh:QC801-809Mathematical analysisInversesynthetic testslcsh:QC851-999Inverse problemSpatial distributiontripotential methodStandard deviationgeoelectrical surveys tripotential method inverse problem synthetic tests cavitieslcsh:Geophysics. Cosmic physicsGeophysicsGeoelectrical surveysElectrical resistivity and conductivitySettore GEO/11 - Geofisica ApplicataRandom noiseStatisticsinverse problemlcsh:Meteorology. ClimatologyElectrical ProblemMathematicsAnnals of Geophysics
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Trying to fuse the basic mathematical ideas of quantum TGD to a single coherent whole

The theoretical framework behind TGD involves several different strands and the goal is to unify them to a single coherent whole. TGD involves number theoretic and geometric visions about physics and $M^8-H$ duality, analogous to Langlands duality, is proposed to unify them. Also quantum classical correspondence (QCC) is a central aspect of TGD. One should understand both the $M^8-H$ duality and QCC at the level of detail. The following mathematical notions are expected to be of relevance for this goal. \begin{enumerate} \item Von Neumann algebras, call them $M$, in particular hyperfinite factors of type $II_1$ (HFFs), are in a central role. Both the geometric and number theoretic side, QCC…

B Philosophy (General)QC01 Quantum mechanics
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Some New Ideas Related to Langlands Program viz. TGD

Langlands' program seeks to relate Galois groups in algebraic number theory to automorphic forms and representation theory of algebraic groups over local fields and adeles. Langlands program is described by Edward Frenkel as a kind of grand unified theory of mathematics. In the TGD framework, $M^8-M^4\times CP_2$ duality assigns to a rational polynomial a set of mass shells $H^3$ in $M^4\subset M^8$ and by associativity condition a 4-D surface in $M^8$, and its it to $H=M^4\times CP_2$. $M^8-M^4\times CP_2$ means that number theoretic vision and geometric vision of physics are dual or at least complementary. This vision could extend to a trinity of number theoretic, geometric and topologica…

B Philosophy (General)QC01 Quantum mechanics
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Bohm’s Implicate Order, Wheeler’s Participatory Universe, Stapp’s Mindful Universe, Zurek’s Quantum Darwinism and the Buddhist Mind-Only Ground Consc…

According to quantum physicist Erich Joos the following three issues are the outstanding quantum conundrums of deep significance: 1. The meaning of the wavefunction; 2. The exact nature of the mechanism of the collapse; 3. The connection between the quantum and classical realm. In this paper I shall attempt to elucidate a possible approach to these central issues by drawing parallels between David Bohm’s notion of the implicate order, John Wheeler’s vision of the ‘Participatory Universe’, Henry Stapp’s account of the Heisenberg-von Neumann quantum ‘ontology’, Wojciech Zurek’s ‘Quantum Darwinism’ proposal and the Buddhist Mind-Only (Yogachara–Chittamatra) concept of the alayavijnana, the gro…

B Philosophy (General)QC01 Quantum mechanicsPhysics::History of PhysicsBL Religion
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Differential branching fractions and isospin asymmetries of B -> K ((*)) μ(+) μ(-) decays

2014

The isospin asymmetries of $B \to K\mu^+\mu^-$ and $B \to K^{*}\mu^+\mu^-$ decays and the partial branching fractions of the $B^0 \to K^0\mu^+\mu^-$, $B^+ \to K^+\mu^+\mu^-$ and $B^+ \to K^{*+}\mu^+\mu^-$ decays are measured as functions of the dimuon mass squared, $q^2$. The data used correspond to an integrated luminosity of 3$~$fb$^{-1}$ from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7$\,$TeV and 8$\,$TeV in 2011 and 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions, while individually consistent, all favour lower values than their respective Standard M…

B physic01 natural sciences7. Clean energyB physicsLuminosity/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitationHigh Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnuclearePhysics Particles & Fields[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]11.30.HvNuclear ExperimentQCPhysics02 Physical SciencesB physics; Branching fraction; Flavour Changing Neutral Currents; Hadron-Hadron Scattering; Rare decayPhysicsParticle physicsNuclear & Particles PhysicsFIS/01 - FISICA SPERIMENTALEIsospinPhysical SciencesBranching fractionFísica nuclearLHCSDG 6 - Clean Water and SanitationParticle Physics - ExperimentParticle physicsNuclear and High Energy Physics14.40.NdFlavour Changing Neutral CurrentsLHCb - Abteilung HofmannHadronsBranching (polymer chemistry)Standard Model0103 physical sciencesLeptonic semileptonic and radiative decays of bottom meson010306 general physicsFlavor symmetrieLarge Hadron Collider (France and Switzerland)01 Mathematical SciencesScience & TechnologyFlavour Changing Neutral CurrentHadron-Hadron Scattering010308 nuclear & particles physicshep-exGran Col·lisionador d'HadronsLHCbRare decay13.20.HeBottom mesons (|B|>0)High Energy Physics::ExperimentFísica de partículesExperimentsRare decay; Branching fraction; B physics; Flavour Changing Neutral Currents; Hadron-Hadron ScatteringFIS/04 - FISICA NUCLEARE E SUBNUCLEARE
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Measurement of CP asymmetry in Bs0 → Ds ∓K± decays

2014

Journal of high energy physics 2018(3), 59 (2018). doi:10.1007/JHEP03(2018)059

B physicCKM angle gamma01 natural sciencesB physicsLuminosityFlavor physicsHadron-Hadron scattering (experiments)TOOLLHCb - Abteilung HintonQCmedia_commonPhysicsParticle physicsCharge conjugation parity time reversal and other discrete symmetrie12.15.HhB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron ScatteringJustice and Strong InstitutionsCP violationB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron Scattering; Nuclear and High Energy PhysicsFísica nuclearLHCAstrophysics::Earth and Planetary AstrophysicsParticle physicsNuclear and High Energy PhysicsVIOLATIONSDG 16 - PeaceVIOLATION; GAMMA; TOOLAstrophysics::High Energy Astrophysical Phenomenamedia_common.quotation_subject14.40.NdLHCb - Abteilung HofmannAstrophysics::Cosmology and Extragalactic AstrophysicsHadrons530Determination of Cabibbo-Kobayashi & Maskawa (CKM) matrix elementAsymmetryNOHadronic decays of bottom mesonTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical scienceslcsh:Nuclear and particle physics. Atomic energy. Radioactivityddc:530010306 general physicsLarge Hadron Collider (France and Switzerland)Astrophysics::Galaxy AstrophysicsHadron-Hadron Scattering010308 nuclear & particles physicsSDG 16 - Peace Justice and Strong InstitutionsGran Col·lisionador d'HadronsGAMMA/dk/atira/pure/sustainabledevelopmentgoals/peace_justice_and_strong_institutionsHEPLHCbFlavor physic13.25.HwB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron scattering (experiments)lcsh:QC770-798Bottom mesons (|B|>0)11.30.ErHigh Energy Physics::ExperimentB physics CKM angle gamma CP violation Flavor physics Hadron-Hadron ScatteringFísica de partículesExperiments
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Observation of an Excited $B^{\pm}_c$ Meson State with the ATLAS Detector

2014

A search for excited states of the B±c meson is performed using 4.9 fb-1 of 7 TeV and 19.2 fb-1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B±c→J/ψπ±. The state appears in the m(Bc±π+π-)-m(Bc±)-2m(π±) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842±4±5 MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B±c meson, B±c(2S).

B-C meson; spectroscopy; equationEquationБольшой адронный коллайдер550Atlas detectorlarge hadron colliderGeneral Physics and Astronomyhadronic decay [excited state]7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnucleareSubatomär fysikHigh Energy Physics - Experiment (hep-ex)B/c* --> B/c+ pi+ pi-Subatomic Physicsexcited stateddc:550EQUATION[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]scattering [p p]ATLAS Detector; Meson StateB mesonGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)SpectroscopyQCPhysics8000 GeV-cms [7000]Large Hadron ColliderSPECTROSCOPYATLAS experimentSettore FIS/01 - Fisica SperimentaleATLASB-C MESON:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]B/c* --> B/c+ pi+ pi-medicine.anatomical_structureCERN LHC CollExcited statePhysical Sciences7000: 8000 GeV-cmsLHCParticle Physics - ExperimentB-C MesonParticle physicsp p: scatteringMeson530 PhysicsCiências Naturais::Ciências FísicasAstrophysics::High Energy Astrophysical Phenomena:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesmass [excited state]столкновение частиц530hadronic decay [B/c+]Nuclear physicsPhysics and Astronomy (all)(J/psi(3100) pi+) [mass spectrum]B/c+ --> J/psi(3100) pi+Atlas (anatomy)TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical sciencesmedicineFysikHigh Energy Physics010306 general physicsB/c+ --> J/psi(3100) pi+Ciencias ExactasScience & TechnologyATLAS detector010308 nuclear & particles physicsHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]FísicaState (functional analysis)B/c+: hadronic decaymass differencemass spectrum: (J/psi(3100) pi+)B-C MESON; SPECTROSCOPY; EQUATIONB/c+excited state: massexcited state: hadronic decayExperimental High Energy PhysicsмезоныHigh Energy Physics::Experimentproton-proton collisionsATLAS детекторexperimental results
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About the role of Galois groups in TGD framework

2021

This article was inspired by the inverse problem of Galois theory. Galois groups are realized as number theoretic symmetry groups realized physically in TGD a symmetries of space-time surfaces. Galois confinement is as analog of color confinement is proposed in TGD inspired quantum biology. Two instances of the inverse Galois problem, which are especially interesting in TGD, are following: Q1: Can a given finite group appear as Galois group over Q? The answer is not known. Q2: Can a given finite group G appear as a Galois group over some EQ? Answer to Q2 is positive as will be found and the extensions for a given G can be explicitly constructed.

BD Speculative PhilosophyMathematics::Number TheoryQA Mathematics (General)QC01 Quantum mechanics
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How Unconditioned Consciousness, Infinite Information, Potential Energy, and Time Created Our Universe

2010

Since the cause and nature of consciousness and its derivation from the universe have never been satisfactorily explained by conventional reductive science, I offer here a rationally imaginative basis for a new scientific paradigm. This new view not only explains the origin of the physical universe, but also that potential consciousness, time, mass/energy and infinite holographic information are rooted in original spin momentum of unconditioned pre-cosmic (empty) space (see appendix) – the absolute source of all relative phenomenal existence.

BD Speculative PhilosophyQ01 Interdisciplinary sciences (General)QC00 Physics (General)B Philosophy (General)BP2 Theosophy
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