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14541por CMS Collaboration“…Results of the normalised differential cross section measurements of top quark pair production with respect to a number of event-level observables are presented, including missing transverse energy, jet transverse momentum scalar sum, total event transverse momentum scalar sum, leptonic W transverse momentum, and leptonic W transverse mass. …”
Publicado 2013
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14542por Pleskot, V“…Recent soft-QCD measurements include studies of underlying event, hadronic event shapes, double parton scattering, diffraction, internal jet structure, jet shapes for heavy quark jets and forward energy flow. Differential measurements of inclusive and dijet production provide stringent tests of higher order QCD predictions and provide input for determination of parton density functions. …”
Publicado 2013
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14543por Kus, V“…Recent soft-QCD measurements include studies of underlying event, hadronic event shapes, double parton scattering, diffraction, internal jet structure, jet shapes for heavy quark jets and forward energy flow. Differential measurements of inclusive and dijet production provide stringent tests of higher order QCD predictions and provide input for determination of parton density functions. …”
Publicado 2014
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14544por Choudhury, Somnath“…The analysis in the most sensitive decay modes in 2 photons, ZZ$^*\rightarrow$4$\ell$, WW$\rightarrow$2$\ell$2$\nu$, tau lepton pair and bottom quark pair final states followed by the discovery of the Higgs Boson around a mass of 125 GeV is reported. …”
Publicado 2014
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14545
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14546por CMS Collaboration“…Within the context of a quark and lepton compositeness model with a left-left isoscalar contact interaction, 95\% CL lower limits are set on $\Lambda$, the energy scale parameter for the contact interaction. …”
Publicado 2014
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14547por Agatonovic Jovin, T“…The results of the $\Lambda_b^0$ mass, lifetime and the lifetime ratio $\tau(\Lambda^{0}_b)/\tau(B_d^0)$, as well as the parity-violating decay asymmetry parameter, $\alpha_{b}$, and the helicity amplitudes of the decay channel $\Lambda^{0}_{b}\rightarrow$J/$\psi(\mu^{+}\mu^{-}$)$\Lambda^{0}(p\pi^{-})$ are reported and compared with those of the LHCb, D0 and CDF experiments, as well as with theoretical models based on heavy-quark effective theory and perturbative QCD.…”
Publicado 2014
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14548por Berta, P“…ATLAS has also commissioned several new powerful tools for for the analysis and interpretation of hadronic final states at the LHC such as jet substructure, jet mass, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. …”
Publicado 2014
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14549por Crispin Ortuzar, M“…ATLAS has also commissioned several new powerful tools for for the analysis and interpretation of hadronic final states at the LHC such as jet substructure, jet mass, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. …”
Publicado 2014
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14550por Zenis, Tibor“…Recent soft-QCD measurements include studies of underlying event, vector meson production and quark confinement effects. Differential measurements of inclusive and multi-jet production provide stringent tests of high-order QCD predictions and provide input for determination of parton density functions. …”
Publicado 2014
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14551por Hamilton, Andrew“…Recent soft-QCD measurements include studies of underlying event, vector meson production and quark confinement effects. Differential measurements of inclusive and multi-jet production provide stringent tests of high-order QCD predictions and provide input for determination of parton density functions. …”
Publicado 2014
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14552por Sykora, Ivan“…Bose-Einstein correlations provide a unique opportunity for detailed understanding of the space-time geometry of the hadronization region, for determining the size and shape of the source from which particles are emitted and for interpreting of quark confinement effects. Bose-Einstein correlation lead to an enhancement of the production of identical bosons close in phase space. …”
Publicado 2015
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14553por Walder, James William“…--HTML--><p>Studies of heavy flavour quark-antiquark bound states provide unique insights into the picture of strong interactions near the boundary between the perturbative and non-perturbative regimes. …”
Publicado 2015
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14554por Sykora, Ivan“…The Bose-Einstein correlations provide a unique opportunity for detailed understanding of space-time characteristics of the hadronization region, for determining the size and shape of the source from which particles are emitted and for interpreting quark confinement effects. The correlations lead to enhancement in production of identical bosons that are close in phase space. …”
Publicado 2015
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14555por Bessidskaia Bylund, Olga“…The measurement uses events with multiple leptons and in particular probes the coupling between the top quark and the Z boson. Finally, the crosssection measurement of photons produced in association with topquark pairs is presented. …”
Publicado 2015
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14556por Nikolaenko, Vladimir“…Rare B_s -> mu+ mu- decay is analyzed on 2011 data at 7 TeV. The ratio of b-quark fragmentation functions measured, f_s/f_d = 0.240 +- 0.004(stat.) +- 0.013(syst.) +- 0.017(BR), this measurement helps to separate contributions from B0 and B_s mesons into mu+\mu- final state in ongoing analysis on full Run 1 data.…”
Publicado 2015
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14557por Pirumov, Hayk“…In addition, ratios of the cross sections for the production of single Z bosons and top-quark pairs have been derived at various center-of-mass energies. …”
Publicado 2016
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14558por Bertsche, David Edwin“…Latest results in the ATLAS programme of heavy hadron production and spectroscopy are also presented, including the latest searches for the bottomonium counterpart to the X(3872), studies of B_c and Lambda_b decays, measurement of b-quark fragmentation functions, and searches for new exotic bound states.…”
Publicado 2016
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14559por Asimov, Isaac“…Il presente volume, che nel mondo anglosassone è diventato una «bibbia della fisica», ci introduce, in forma semplice ma rigorosa, ai segreti dei quasar e dei buchi neri, dei quark e degli acceleratori di particelle, dell'intelligenza artificiale e delle fonti di energia, sia essa quella «sporca» sia quella «pulita». …”
Publicado 1986
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14560por Oreglia, Mark“…Final states with different number of leptons and where the Higgs decays into a b-quark pair are studied using different jet reconstruction techniques which are complementary in their acceptance for low and high mass transverse momentum. …”
Publicado 2017
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