Invariant mass
Search for structure in the B0sπ± invariant mass spectrum
... LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Costa Sobral, C. M., Crocombe, Andrew, Gershon, Timothy J., Kreps, Michal, Latham, Thomas, Loh, D., Mathad, Abhijit , O'Hanlon, D. P., Poluektov, Anton, Wallace, ...
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Check of the structure in photon pairs spectra at the invariant mass of about 38 MeV/c2
... To see a possible structure of the invariant mass spectra, a background should be sub- tracted. The so-called event mixing method was used to estimate the combinatorial back- ground: a photon in one event ...
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Search for a Structure in the B_{s}^{0}π^{±} Invariant Mass Spectrum with the ATLAS Experiment.
... PHYSICAL REVIEW LETTERS 120, 202007 2018 129 Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic 130 Czech Technical University in Prague, Praha, Czech[r] ...
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First CMS results at 13 TeV
... the invariant mass and the “pseudo-proper decay length” [22], with a function describing the prompt component with a resolution function, the non prompt component with an exponential convoluted with a ...
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Digamma diagnostics for the mixed-phase generation at NICA
... the invariant mass and width of the γγ signal (together with the dilepton signal) will give unambiguous information about the chiral phase transition in hot and/or dense nuclear ...
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Study of the gauge invariant, nonlocal mass operatorTr∫d4xFμν(D2)−1Fμνin Yang-Mills theories
... gauge invariant mass term built up with gauge fields ...gauge invariant operator O A is coupled, should have the property of being made local by the introduction of a suitable set of additional ...
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Search for the rare decays B0s→μ+μ− and B0→μ+μ−
... The dominant background after the B 0 q → μ + μ − selection is expected to be b b ¯ → μμ X [10,13]. This is confirmed by com- paring the kinematical distributions of the sideband data with a b b ¯ → μμ X MC sample. The ...
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Searches for New Physics in Top-like Final States
... The invariant mass of a top quark and a W boson (see Figure 9) is reconstructed by taking into account four kinds of ...reconstructed mass is given by the combination of CA top and CA W ...
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Performance and calibration of b-tagging with the ATLAS experiment at LHC Run-2
... The invariant mass of tracks fitted to one or more of the displaced vertices is shown in Figure 7a and the fraction of energy carried by the fitted tracks compared to the total energy of the jet is shown in ...
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Search for a W-' boson decaying to a top and bottom quark pair in 1.8 TeV p(p)over-bar collisions
... Gaussian prior distributions to take into account the sys- tematic uncertainties that affect the number of expected background or signal events and the shape of the resulting invariant mass distribution. ...
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Search for the Higgs boson in fermionic channels using the ATLAS detector
... The signal strength μ is extracted from the invariant mass distribution m bb in the 26 regions described above. Top, (W / Z) + b and (W / Z) + cl backgrounds are floating in the fit. Other backgrounds are al- ...
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Recent result from CMD-3 detector
... Abstract. Since December 2010, the CMD-3 detector has collected data at the electron-positron collider VEPP- 2000. The sample of the accumulated data corresponds to about 60 pb −1 of integrated luminosity in the c.m. ...
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Observation of B0s→χc1ϕ decay and study of B0→χc1,2K∗0 decays
... been reconstructed using clusters in the electromagnetic calorimeter that have transverse energy greater than 0.7 GeV. To suppress the large combinatorial background from π 0 → γ γ decays, photons that can form part of a ...
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Exclusive eta electroproduction at W > 2 GeV with CLAS and transversity generalized parton distributions
... Source Target length Electron fiducial cut Proton fiducial cut Cut on missing mass of the eγ γ Cut on invariant mass of two photons Cut on missing energy of the epγ γ Radiative correctio[r] ...
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Hadronic resonances from ALICE in pp collisions
... Due to their very short lifetime, resonance decay products cannot be distinguished from the par- ticles coming from the primary vertex, and their yield can only be measured by first computing the invariant ...
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Search for heavy resonances with the ATLAS detector
... reconstructed invariant dilepton mass is chosen as signal discriminant and shown in Figure 2 (left) with a well understood background in good agreement with the observation out of ...the invariant ...
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Probing QCD with Photons and Jets at the ATLAS detector
... parameter R = 0.4 and are required to have p jet T greater than 100 GeV and | y jet | < 2.37. Measurements of isolated-photon plus jet cross sections are presented as functions of the leading photon tranverse energy, ...
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Interaction of real and virtual NN̅ pairs in J/ψ decays
... model fits the experimental data for the decay J/ψ → p pω ¯ quite well. There are no experimental data for the de- cay J/ψ → p pρ, therefore, the predictions for the invariant ¯ mass spectrum are especially ...
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Search for R-parity violating supersymmetry and quantum blackholes in eμ final state in CMS
... Many extensions of the standard model (SM) predict the existence of heavy particles that decay promptly to the eµ final state, and motivate the search for lepton flavour violating (LFV) signatures in interactions ...
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