Search results for "QB"

showing 10 items of 522 documents

The LOFT mission concept: a status update

2016

The Large Observatory For x-ray Timing (LOFT) is a mission concept which was proposed to ESA as M3 and M4 candidate in the framework of the Cosmic Vision 2015-2025 program. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument and the uniquely large field of view of its wide field monitor, LOFT will be able to study the behaviour of matter in extreme conditions such as the strong gravitational field in the innermost regions close to black holes and neutron stars and the supra-nuclear densities in the interiors of neutron stars. The science payload is based on a Large Area Detector (LAD, >8m2 effective area, 2-30 keV, 240 eV spectral resolut…

X-ray timing[ SDU.ASTR.GA ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]Field of viewAstrophysics01 natural scienceslaw.inventionlawObservatorytiming010303 astronomy & astrophysicsQBPhysicsmicrochannel plates. PROPORTIONAL COUNTER ARRAYCALIBRATIONX-ray astronomyElectronic Optical and Magnetic MaterialApplied MathematicsAstrophysics::Instrumentation and Methods for AstrophysicsComputer Science Applications1707 Computer Vision and Pattern RecognitionX-ray detectorsCondensed Matter Physicscompact objectsX-ray spectroscopy[SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]spectroscopyCosmic Vision[ INFO ] Computer Science [cs]Silicon detectorAstrophysics::High Energy Astrophysical PhenomenaCondensed Matter PhysicTelescopeX-rayX-ray astronomySilicon detectors; spectroscopy; timing; X-ray astronomy; Electronic Optical and Magnetic Materials; Condensed Matter Physics; Applied Mathematics; Electrical and Electronic EngineeringSettore FIS/05 - Astronomia e Astrofisica0103 physical sciencesElectronic[INFO]Computer Science [cs]Optical and Magnetic MaterialsSpectral resolutionElectrical and Electronic EngineeringDETECTORta115X-ray astronomy Silicon detectors timing spectroscopy010308 nuclear & particles physicsX-ray imagingX-ray timing; X-ray spectroscopy; X-ray imaging; compact objects; X-ray detectors; microchannel plates. PROPORTIONAL COUNTER ARRAY; CALIBRATION; DETECTORApplied MathematicNeutron starQB460-466 AstrophysicsSilicon detectors; spectroscopy; timing; X-ray astronomy; Electronic Optical and Magnetic Materials; Condensed Matter Physics; Computer Science Applications1707 Computer Vision and Pattern Recognition; Applied Mathematics; Electrical and Electronic EngineeringSilicon detectors; spectroscopy; timing; X-ray astronomySilicon detectorsLarge Observatory For x-ray Timing (LOFT) Large Area Detector (LAD) Wide Field Monitor (WFM) Large Area Silicon Drift Detectors (SDD)Gamma-ray burst
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"Table 19: Mass distribution, 2 tag, mbb window 130" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in th…

2018

The mass distribution of the llbb system used in the fit to derive the limits for the mbb window centered at 130 GeV for the nb = 2 (2 tag) category.

Z0 --> MU+ MU-2HDMZ0 --> E+ E-13000.0P P --> HIGGSHIGGS --> BQ BQBARgluon-gluon fusionmass distributionb-associated productionMHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 3: Cross-section limits b-associated production" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for a narrow width A boson produced in association with b-quarks. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The result refers to the combination of the nb=2 and nb>=3 categories.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0CLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGS
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"Table 1: Signal Efficiency" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\ell\ell bb$ final st…

2018

The signal efficiency for the production modes (gluon-gluon fusion and b-associated production) and the signal regions used in the analysis. The efficiency denominator has the total number of generated MC events. The numerator includes the events passing the full signal region selection, including the mbb window cuts. The table shows for each signal mass pair (mA, mH) 3 efficiencies corresponding to the two production modes in the two categories, 2tag and 3tag. These corresponds to "nb = 2 category" and "nb >= 3 category", respectively, of the preprint. No numbers for gluon-gluon fusion in the 3tag category are provided since those are not used in the analysis. The efficiencies are given…

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0EFFHiggs boson productionHIGGS --> Z0 HIGGSselection efficiency
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"Table 18: Cross-section limits flipped tanb 20" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the flipped, tanbeta 20, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For flipped both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 8: Cross-section limits type-II tanb 1" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\el…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the type-II, tanbeta 1, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For type-II both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 16: Cross-section limits flipped tanb 5" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\e…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the flipped, tanbeta 5, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For flipped both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 10: Cross-section limits type-II tanb 10" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the type-II, tanbeta 10, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For type-II both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 17: Cross-section limits flipped tanb 10" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the flipped, tanbeta 10, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For flipped both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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"Table 11: Cross-section limits type-II tanb 20" of "Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\…

2018

The cross section times BR(A->ZH) times BR(H->bb) limits for an A boson in the type-II, tanbeta 20, 2HDM. For each signal point, characterised by the mass pair (mA, mH), two limits are provided, the observed and the expected. The correct width as predicted by this particular parameter choice of the 2HDM is used. For type-II both gluon-gluon fusion and b-associated production are used and the nb=2 and nb>=3 categories are combined.

Z0 --> MU+ MU-Z0 --> E+ E-2HDMP P --> HIGGSHIGGS --> BQ BQBAR13000.0gluon-gluon fusionCLSb-associated productioncross section limitsHiggs boson productionHIGGS --> Z0 HIGGSgluon fusion
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