Search results for "bottom"

showing 10 items of 450 documents

"Table 6" of "Search for scalar bottom pair production with the ATLAS detector in pp Collisions at sqrt{s} = 7 TeV"

2012

Expected -1 sigma exclusion limit in the sbottom-neutralino mass plane.

P P --> JET JET MM XInclusiveDijet ProductionBeautyP P --> NEUTRALINO XProton-Proton ScatteringP P --> SBOTTOM SBOTTOMBAR X7000.0MJet ProductionBottom
researchProduct

"Table 3" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for W decay in dilepton events.. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> LEPTON+ LEPTON- XPBAR P --> TOP TOPBARNuclear TheoryW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionInclusiveExclusiveHigh Energy Physics::ExperimentNuclear Experiment1960.0Angular DependenceDrell YanW Production
researchProduct

"Table 6" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for W decay in dilepton events.. The data in this table are PRELIMINARY and taken from D0 Note 5722-CONF. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> LEPTON+ LEPTON- XPBAR P --> TOP TOPBARW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionInclusiveExclusiveHigh Energy Physics::ExperimentNuclear Experiment1960.0Angular DependenceDrell YanW Production
researchProduct

"Table 1" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for leptonic W decay in lepton+jets events.. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> TOP TOPBARHigh Energy Physics::PhenomenologyW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionJet ProductionInclusiveExclusiveHigh Energy Physics::ExperimentPBAR P --> LEPTON JETS X1960.0Angular DependenceW Production
researchProduct

"Table 4" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for leptonic W decay in lepton+jets events.. The data in this table are PRELIMINARY and taken from D0 Note 5722-CONF. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> TOP TOPBARHigh Energy Physics::PhenomenologyW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionJet ProductionInclusiveExclusiveHigh Energy Physics::ExperimentPBAR P --> LEPTON JETS X1960.0Angular DependenceW Production
researchProduct

"Table 5" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for hadronic W decay in lepton+jets events.. The data in this table are PRELIMINARY and taken from D0 Note 5722-CONF. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> TOP TOPBARHigh Energy Physics::PhenomenologyW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionJet ProductionInclusiveExclusiveHigh Energy Physics::ExperimentPBAR P --> LEPTON JETS XNuclear Experiment1960.0Angular DependenceW Production
researchProduct

"Table 2" of "Model-independent measurement of the W boson helicity in top quark decays at D0"

2008

COS(THETA*) distribution for hadronic W decay in lepton+jets events.. Data are read from plots and errors are statistcial (sqrt(N)).

PBAR P --> TOP TOPBARHigh Energy Physics::PhenomenologyW pair ProductionDN/DCOSTHETATopPBAR P --> W+ W- BOTTOM BOTTOMBARSingle Differential DistributionJet ProductionInclusiveExclusiveHigh Energy Physics::ExperimentPBAR P --> LEPTON JETS XNuclear Experiment1960.0Angular DependenceW Production
researchProduct

The complexity of graph languages generated by hyperedge replacement

1990

Although in many ways, hyperedge replacement graph grammars (HRGs) are, among all graph generating mechanisms, what context-free Chomsky grammars are in the realm of string rewriting, their parsing problem is known to be, in general, NP-complete. In this paper, the main difficulty in HRG parsing is analysed and some conditions on either grammar or input graphs are developed under which parsing can be done in polynomial time. For some of the cases, the parsing problem is shown to be log-space reducible to context-free string parsing.

ParsingTheoretical computer scienceComputer Networks and CommunicationsComputer sciencebusiness.industryComputer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing)Parsing expression grammarcomputer.software_genreTop-down parsingTheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGESParser combinatorS-attributed grammarTop-down parsing languageArtificial intelligenceL-attributed grammarbusinesscomputerComputer Science::Formal Languages and Automata TheorySoftwareNatural language processingInformation SystemsBottom-up parsingActa Informatica
researchProduct

Determination of the $X(3872)$ meson quantum numbers

2013

The quantum numbers of the X(3872) meson are determined to be J(PC) = 1(++) based on angular correlations in B+ -> X(3872)K+ decays, where X(3872) -> pi(+) pi(-) j/psi and J/psi -> pi(+) mu(-). The data correspond to 1.0 fb(-1) of pp collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J(PC) = 2(-+) is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X(3872) state.

Particle physicsCOLLISIONSMesonExotic mesonHigh Energy Physics::LatticeGaussian14.40.NdNuclear TheoryGeneral Physics and AstronomyFOS: Physical sciences01 natural sciencesSettore FIS/04 - Fisica Nucleare e SubnucleareHigh Energy Physics - ExperimentNuclear physicsPhysics and Astronomy (all)symbols.namesakeHigh Energy Physics - Experiment (hep-ex)14.40.RtHadronic decays of bottom meson0103 physical sciences13.25.GvPi[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]CollisionsNuclear Experiment010306 general physicsPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyParticle physicsState (functional analysis)Exotic hadrons Charmonium Hadron ColliderQuantum numberLHCbFIS/01 - FISICA SPERIMENTALEPhase space13.25.HwsymbolsBottom mesons (|B|>0)TetraquarkFísica nuclearHigh Energy Physics::ExperimentLHCFísica de partículesExperimentsFIS/04 - FISICA NUCLEARE E SUBNUCLEAREParticle Physics - ExperimentHadronic decays of J/ψ Υ and other quarkoniaX(3872)
researchProduct

General Flavor Blind MSSM and CP Violation

2001

We study the implications on flavor changing neutral current and CP violating processes in the context of supersymmetric theories without a new flavor structure (flavor blind supersymmetry). The low energy parameters are determined by the running of the soft breaking terms from the grand unified scale with SUSY phases consistent with the EDM constraints. We find that the CP asymmetry in b --> s gamma can reach large values potentially measurable at B factories, especially in the low BR(b --> s gamma) region. We perform a fit of the unitarity triangle including all the relevant observables. In this case, no sizeable deviations from the SM expectations are found. Finally we analyze the …

Particle physicsFOS: Physical sciences030204 cardiovascular system & hematology01 natural sciencesviolation [CP]bottombranching ratio [quark]03 medical and health sciencesradiative decay [quark]0302 clinical medicineHigh Energy Physics - Phenomenology (hep-ph)interpretation of experiments [numerical calculations]magnetic moment [muon]mass spectrum [sparticle]unitarityddc:530electric moment [electron]0101 mathematicsFlavorPhysicstables010102 general mathematicsHigh Energy Physics::Phenomenologybibliographymass [Higgs particle]3. Good healthHigh Energy Physics - Phenomenologygrand unified theoryCP violationflavor changing [neutral current]High Energy Physics::Experimentbeauty --> strangeness photonsupersymmetry
researchProduct