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Using data collected with the D0 detector at the Fermilab Tevatron Collider, corresponding to 5.3 fb(-1) of integrated luminosity, we search for violation of Lorentz invariance by examining the tt[over ¯] production cross section in lepton+jets final states. We quantify this violation using the standard-model extension framework, which predicts a dependence(More)
Combined constraints from the CDF and D0 Collaborations on models of the Higgs boson with exotic spin J and parity P are presented and compared with results obtained assuming the standard model value JP=0+. Both collaborations analyzed approximately 10  fb(-) of proton-antiproton collisions with a center-of-mass energy of 1.96 TeV collected at the Fermilab(More)
We report the first observation of single-top-quark production in the s channel through the combination of the CDF and D0 measurements of the cross section in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb(-1) per experiment. The measured cross section is σ(s) =(More)
We present a measurement of the direct CP-violating charge asymmetry in B(±) mesons decaying to J/ψK(±) and J/ψπ(±) where J/ψ decays to μ(+) μ(-), using the full run II data set of 10.4 fb(-1) of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. A difference in the yield of B(-) and B(+) mesons in these decays(More)
We perform a combination of searches for standard model Higgs boson production in p¯ p collisions recorded by the D0 detector at the Fermilab Tevatron Collider at a center of mass energy of √ s = 1.96 TeV. The different production and decay channels have been analyzed separately, with integrated luminosities of up to 9.7 fb −1 and for Higgs boson masses 90(More)
We present an improved determination of the total width of the top quark, Γt, using 5.4 fb −1 of integrated luminosity collected by the D0 Collaboration at the Tevatron p¯ p Collider. The total width Γt is extracted from the partial decay width Γ(t → W b) and the branching fraction B(t → W b). Γ(t → W b) is obtained from the t-channel single top quark(More)
This study examined the experiences of counsellors in training working with clients who present with non-suicidal self-injury (NSSI) as a basis for understanding how trainees react to and resolve the challenges presented by difficult counselling cases. A qualitative data analysis using consensual qualitative research [Hill, C. was conducted on 12(More)
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We combine six measurements of the inclusive top-quark pair (t ¯ t)(More)
We present a simultaneous measurement of the forward-backward asymmetry and the top-quark polarization in t ¯ t production in dilepton final states using 9.7 fb −1 of proton-antiproton collisions at ffiffi ffi s p ¼ 1.96 TeV with the D0 detector. To reconstruct the distributions of kinematic observables we employ a matrix element technique that calculates(More)