Search results for "Simplified model"
showing 10 items of 19 documents
A parsimonious dynamic model for river water quality assessment
2010
Water quality modelling is of crucial importance for the assessment of physical, chemical, and biological changes in water bodies. Mathematical approaches to water modelling have become more prevalent over recent years. Different model types ranging from detailed physical models to simplified conceptual models are available. Actually, a possible middle ground between detailed and simplified models may be parsimonious models that represent the simplest approach that fits the application. The appropriate modelling approach depends on the research goal as well as on data available for correct model application. When there is inadequate data, it is mandatory to focus on a simple river water qua…
Infilled frames: Developments in the evaluation of cyclic behaviour under lateral loads
2005
In order to consider the modified seismic response of framed structures in the presence of masonry infills, proper models have to be formulated. Because of the complexity of the problem, a careful definition of an equivalent diagonal pin-jointed strut, able to represent the horizontal force-interstorey displacement cyclic law of the actual infill, may be a solution. In this connection the present paper, continuing a previous work in which a generalised criterion for the determination of the ideal cross-section of the equivalent strut was formulated, analizes some models known in literature for the prediction of the lateral cyclic behaviour discussing their field of validity. As a support of…
Infilled frames: developments in the evaluation of the stiffening effect of infills
2003
In order to consider the modified seismic response of framed structures in the presence of masonry infills, proper models have to be formulated. Because of the complexity of the problem, a careful definition of a diagonal pin-jointed strut, able to represent the horizontal force-interstorey displacement cyclic law of the actual infill, may be a solution. In this connection the present paper shows a generalized criterion for the determination of the ideal cross-section of the strut mentioned before. The procedure is based on the equivalence between the lateral stiffness of the actual infilled frame scheme during the conventional elastic stage of the response and the lateral stiffness of the …
"Intermediate SR cutflow efficiencies" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$…
2020
Cumulative efficiencies for the intermediate category for signal samples with ms=160 GeV (a), ms=235 GeV (b) and ms=310 GeV (c), each with mZ'=1 TeV. The TAR+Comb algorithm reconstructs the dark Higgs candidate from a TAR jet with mTAR>60 GeV that is supplemented by up to two additional small-R jets within ΔRcone=2.5 of the TAR jet. Here, Δ φjets1,2,3 ETmiss is the smallest azimuthal angle between the ETmiss and any of the three highest-pT (leading) small-R jets. For details see text.
"Merged SR cutflow efficiencies" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fu…
2020
Cumulative efficiencies for the merged category for signal samples with ms=160 GeV (a), ms=235 GeV (b) and ms=310 GeV (c), each with mZ'=1 TeV. The dark Higgs candidate selection includes stringent jet substructure requirements and typically at most one candidate is present in signal events. Here, Δ φjets1,2,3 ETmiss is the smallest azimuthal angle between the ETmiss and any of the three highest-pT (leading) small-R jets.
"Upper limits on cross-section x BR (mZp=0.5 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=0.5 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=0.5 TeV, shown in dashed blue.
"Upper limits on mu (mZp=0.5 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in …
2020
The ratios (μ) of the 95% C.L. upper limits on the combined s→ W±W∓ and s→ ZZ cross section to simplified model expectations for the mZ'=0.5 TeV scenario, for various ms hypotheses. The observed limits (solid line) are consistent with the expectation under the SM-only hypothesis (dashed line) within uncertainties (filled band), except for a small excess for ms=160 GeV, discussed in the text.
"Upper limits on mu (mZp=1 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fu…
2020
The ratios (μ) of the 95% C.L. upper limits on the combined s→ W±W∓ and s→ ZZ cross section to simplified model expectations for the mZ'=1 TeV scenario, for various ms hypotheses. The observed limits (solid line) are consistent with the expectation under the SM-only hypothesis (dashed line) within uncertainties (filled band), except for a small excess for ms=160 GeV, discussed in the text.
"Upper limits on cross-section x BR (mZp=1.7 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=1.7 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=1.7 TeV, shown in dashed blue.
"Upper limits on cross-section x BR (mZp=1 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\m…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=1 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=1 TeV, shown in dashed blue.