Search results for "PACS"

showing 10 items of 141 documents

Dielectric Collimators for Beam Delivery Systems*

2012

Abstract Wakefield generation by the collimation system is known to be a critical linear collider design issue. Optimization of the collimators represents a tradeoff between beam quality (halo reduction) and luminosity reduction. The primary objective is to reduce both short range (resonant) and long range (resistive) deflecting wakefields from collimators that reduce the luminosity of the machine. We consider the CLIC BDS (beam delivery system) and examine the potential for using dielectric rather than highly conducting materials for collimation. We present some examples of the flexibility gained by having control over the permittivity and conductivity of the collimator. We discuss simulation …

PhysicsLuminosity (scattering theory)collimationbusiness.industry29.27.BdLinear colliderCollimatorDielectricwakefields PACS: 29.27.EgPhysics and Astronomy(all)Accelerators and Storage RingsCollimated lightlaw.invention29.20.EjBunchesOpticslawLaser beam qualityDetectors and Experimental TechniquesbusinessColliderBeam (structure)Physics Procedia
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Black hole state counting in loop quantum gravity: a number-theoretical approach

2008

4 pages, 1 figure.-- PACS nrs.: 04.70.Dy, 04.60.Pp.-- ArXiv pre-print available at: http://arxiv.org/abs/0802.4077

PhysicsMatemáticasAstrophysics::High Energy Astrophysical PhenomenaImmirzi parameterGeneral Physics and AstronomyFOS: Physical sciencesFísicaLoop quantum gravityGeneral Relativity and Quantum Cosmology (gr-qc)Mathematical Physics (math-ph)General Relativity and Quantum CosmologyBlack holeTheoretical physicsMicro black holeGeneral Relativity and Quantum CosmologyClassical mechanicsExtremal black hole[PACS] Quantum aspects of black holes evaporation thermodynamicsVirtual black holeBlack hole thermodynamics[PACS] Loop quantum gravity quantum geometry spin foamsMathematical PhysicsBlack hole complementarity
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New information on β-delayed neutron emission from Be-12, Be-14

1999

17 pages, 3 tables, 5 figures, 1 appendix.-- PACS nrs.: 23.40.Hc; 27.20.+n.

PhysicsNuclear and High Energy PhysicsLarge Hadron ColliderRadioactivity: Be-12 Be-14 (from 1 GeV p on UC target selective mass separation)Astrophysics::High Energy Astrophysical PhenomenaConfidence intervalNuclear physics6 ≤ A ≤ 19 [[PACS] Properties of specific nuclei listed by mass ranges]Neutron long countersBe-12 Be-14 deduced P(n) values Be-14 deduced P(xn) valuesHigh Energy Physics::ExperimentNeutronMeasured βn nn time correlations[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19Nuclear ExperimentDelayed neutronRadioactive beam[PACS] Relation with nuclear matrix elements and nuclear structureBe-12 Be-14 (from 1 GeV p on UC target selective mass separation) [Radioactivity]
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Precision measurement of the conversion electron spectrum of 83mKr with a solenoid retarding spectrometer

1992

This paper reports on precision measurements of conversion lines in the decay of 83mKr with nuclear transition energies of 32.1 keV and 9.4 keV, respectively. The spectra were taken from a submonolayer surface of 83mKr frozen onto a cold backing, using the new Mainz solenoid retarding spectrometer. The high luminosity and resolution of this instrument enables the observation of all allowed conversion lines up to the N-shell and to fully separate the elastic component from inelastic satellites. The combined analysis of the data yields the transition energies Ey=32151.5±1.1 eV and 9405.9±0.8 eV, respectively. The experiment served also to pilot the application of this spectrometer to the ques…

PhysicsNuclear and High Energy PhysicsLuminosity (scattering theory)SpectrometerSolenoidElectronpacs:29.30.Dnpacs:27.50.+eElectron spectroscopySpectral lineNuclear physicsNuclear fusionddc:530NeutrinoAtomic physics
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He-8 - He-6: a comparative study of electromagnetic fragmentation reactions

2002

14 pages, 1 table, 2 figures.-- PACS nrs.:27.20.+n; 24.70.+.-- Available online Oct 8, 2001.

PhysicsNuclear and High Energy PhysicsNuclear Reactions: Pb(He-8xn He-6) E=227 MeV/nucleonNuclear TheoryHalo nucleusElectromagnetic fragmentationB(E1)Dissociation (chemistry)Nuclear physics6 ≤ A ≤ 19 [[PACS] Properties of specific nuclei listed by mass ranges]Measured σ σ(Θ) σ(E)He-8 deduced resonance energyPb(He-6xnα) E=240 MeV/nucleonNeutronAtomic physics[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19Nuclear ExperimentPb(He-8xn He-6) E=227 MeV/nucleon [Nuclear Reactions]
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Three-body correlations in electromagnetic dissociation of Borromean nuclei: The 6He case

2005

20 pages, 2 tables, 9 figures, 1 appendix.-- PACS nrs.: 25.60.-t; 27.20.+n; 25.70.De; 25.75.Gz.-- Printed version published Sep 5, 2005.

PhysicsNuclear and High Energy PhysicsParticle correlationsCoulomb excitationCoulomb excitationDissociation (chemistry)Coincidence[PACS] Reactions induced by unstable nucleiAmplitude6 ≤ A ≤ 19 [[PACS] Properties of specific nuclei listed by mass ranges]Fragmentation (mass spectrometry)[PACS] Particle correlations and fluctuationsNeutronHe-6[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19Atomic physicsSeries expansionGround stateUnstable nucleiNuclear Physics A
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Baryon decuplet in the chiral dynamics of Λ hyperons in nuclear matter

2007

6 pages, 5 figures.-- PACS nrs.: 21.80.+a; 21.65.+f; 13.75.Ev; 24.10.Cn.-- ISI Article Identifier: 000245332200063.-- ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0611082

PhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeMany-body theoryHigh Energy Physics::PhenomenologyNuclear TheoryHyperon[PACS] Hyperon–nucleon interactions (energy ≤ 10 GeV)FísicaSpin-orbit InteractionSpin–orbit interactionNuclear matter[PACS] Many-body theory of nucleiNuclear physicsBaryonMany-body problemFinite NucleiPionΣ-hypernucleiHigh Energy Physics::ExperimentNuclear Experiment[PACS] Nuclear matterSpin-½
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Finding the Higgs boson through supersymmetry

2009

6 pages, 7 figures.-- PACS nrs.: 12.60.Jv; 13.85.Ni; 14.60.Pq; 14.80.Cp.-- ArXiv pre-print available at: http://arxiv.org/abs/0809.1637

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderSupergravity[PACS] Non-standard-model Higgs bosonsElectroweak interactionBosón de HiggsHigh Energy Physics::Phenomenology[PACS] Supersymmetric unified modelsFOS: Physical sciencesFísicaSupersymmetry[PACS] Neutrino mass and mixingSupersymmetry breaking[PACS] Hadron-induced inclusive production with identified hadrons (energy > 10 GeV)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)SupersimetríaHiggs bosonHigh Energy Physics::ExperimentNeutrino oscillationMinimal Supersymmetric Standard Model
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Neutrino induced coherent pion production off nuclei and the partial conservation of the axial current

2009

15 pages, 7 figures, 1 table.-- PACS nrs.: 25.30.Pt; 12.15.-y; 13.15.+g.-- ArXiv pre-print available at: http://arxiv.org/abs/0903.5285

PhysicsNuclear and High Energy PhysicsParticle physicsNeutral current010308 nuclear & particles physicsFísicaObservable01 natural sciences[PACS] Nuclear neutrino-induced reactionsPion[PACS] Neutrino interactionsSimple (abstract algebra)0103 physical sciencesAxial currentProduction (computer science)Point (geometry)[PACS] Electroweak interactionsNeutrino010306 general physicsPhysical Review D
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Flavor physics at large tanβwith a binolike lightest supersymmetric particle

2007

12 pages, 7 figures.-- PACS nrs.: 12.60.Jv; 13.25.Hw; 13.35.-r; 95.35.+d.-- ISI Article Identifier: 000247625300053.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0703035

PhysicsNuclear and High Energy PhysicsParticle physicsStandard ModelRelic densityDark matter[PACS] Supersymmetric unified modelsSuperpartnerNeutrino massesSupersymmetryLightest Supersymmetric ParticleStandard ModelNuclear physics[PACS] Hadronic decays of bottom mesonsLepton flavour[PACS] Decays of leptons[PACS] Dark matter (stellar interstellar galactic and cosmological)B mesonNeutrinoFlavorPhysical Review D
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