Search results for "Strange meson"

showing 4 items of 4 documents

Strange and charm mesons at FAIR

2010

Presented at the XXXI Mazurian Lakes Conference on Physics, Piaski, Poland, August 30–September 6, 2009.

CharmCBMNuclear TheoryNuclear TheoryScalar ResonancesFOS: Physical sciencesStrange ; Charm ; Mesons ; CBM ; FAIR ; GSI ; Finite temperature ; Spectral functions ; Scalar ResonancesStrange mesonUNESCO::FÍSICA::Física molecular::Moléculas mesónicas y muónicasGSINuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph):FÍSICA [UNESCO]Nuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentNUCLEAR-MATTERFAIREnergyMesonsFinite temperatureHigh Energy Physics::PhenomenologyUNESCO::FÍSICASpectral functionsTemperatureStrangeHigh Energy Physics - PhenomenologyCharm mesonsHigh Energy Physics::Experiment:FÍSICA::Física molecular::Moléculas mesónicas y muónicas [UNESCO]RESONANCES
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Measurement of branching fractions and charge asymmetries for exclusive B decays to charmonium

2005

We report measurements of branching fractions and charge asymmetries of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state and a light strange meson. The charmonium mesons considered are J/Psi, Psi(2S) and Chi_c1, and the light meson is either K or K*. We use a sample of about 124 million BBbar events collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center.

Molecular dynamicElectron–positron annihilationHigh Energy Physics::LatticeBABARNuclear TheoryGeneral Physics and Astronomy01 natural sciences13.25.Hw 11.30.Er 12.15.HhElectron positronlaw.inventionHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Mathematical modellawB mesons; charm particles; chi mesons; kaon production; meson hadronic decay; psi mesons[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PEP2B mesonNuclear ExperimentConstraint theorymedia_commonPhysicsAnnihilationEnergy dissipationSettore FIS/01 - Fisica SperimentaleQuarkonium strange mesonParticle physicsMESONSpair production [B]PARTICLE PHYSICSBranching fractionSLACOptimizationParticle physicsSiliconMesonmedia_common.quotation_subjectFOS: Physical sciencesCharged particleAnnihilationAsymmetryPARTICLE PHYSICS; PEP2; BABARNuclear physics0103 physical sciencesbranching ratio [B0]Colliding beamsMESONS; BABAR; SLACBeam directionResistive plate chambers (RPC)010306 general physicshadronic decay [B]Calorimeter010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyParticle acceleratorHEPbranching ratio [B+]Quantum theoryElectromagnetic calorimeters (EMC)High Energy Physics::ExperimentFísica de partículesExperimentsStorage ring
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Strangeness and charm in nuclear matter

2012

The properties of strange (K, (K) over bar and (K) over bar*) and open-charm (D, (D) over bar and D*) mesons in dense matter are studied using a unitary approach in coupled channels for meson-baryon scattering. In the strangeness sector, the interaction with nucleons always comes through vector-meson exchange, which is evaluated by chiral and hidden gauge Lagrangians. For the interaction of charmed mesons with nucleons we extend the SU(3) Weinberg-Tomozawa Lagrangian to incorporate spin-flavor symmetry and implement a suitable flavor symmetry breaking. The in-medium solution for the scattering amplitude accounts for Pauli blocking effects and meson self-energies. On one hand, we obtain the …

Nuclear and High Energy PhysicsParticle physicsNuclear TheoryMesonHigh Energy Physics::LatticeNuclear TheoryFOS: Physical sciencesStrangeness01 natural sciences7. Clean energyNuclear Theory (nucl-th)Nuclear physicsStrange mesonsTransparency ratioHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesVector mesonSymmetry breakingNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyDynamically-generated baryon resonancesFísicaNuclear matterOpen charm in matterPseudoscalarBaryonD-mesic nucleiHigh Energy Physics - PhenomenologyHigh Energy Physics::ExperimentNucleon
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Multiquark description of the D-sJ(2860) and D-sJ(2700)

2009

Within a theoretical framework that accounts for all open-charm mesons, including the D-0*(2308), the D-sJ*(2317), and the D-sJ(2460), we analyze the structure and explore possible quantum number assignments for the D-sJ(2860) and the D-sJ(2700) mesons reported by BABAR and Belle Collaborations. The open-charm sector is properly described if considered as a combination of conventional quark-antiquark states and four-quark components. All negative parity and 2(+) states can be understood in terms only of q (q) over bar components, however the description of the 0(+) and 1(+) mesons is improved whenever the mixing between two- and four-quark configurations is included. We analyze all possible…

High Energy Physics::PhenomenologyCharm mesonsFísicaHigh Energy Physics::ExperimentCharm-strange mesonsquark models
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