Simultaneous Measurement of the Ratio R=B(t→Wb)/B(t→Wq) and the Top-Quark Pair Production Cross Section with the D0 Detector at s√=1.96 TeV

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.192003

Measurement of the pp-bar→WZ+X cross section at s√=1.96 TeV and limits on WWZ trilinear gauge couplings

This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.76.111104

Combined D0 measurements constraining the CP-violating phase and width difference in the B(0)(s) system

This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.76.057101

Combination of tt-bar cross section measurements and constraints on the mass of the top quark and its decays into charged Higgs bosons

This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.80.071102

Search for a heavy resonance decaying into a Z+jet final state in pp-bar collisions at s√=1.96 TeV using the D0 detector

This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.74.011104.We have searched for a heavy resonance decaying into a Z+jet final state in pp-bar collisions at a center of mass energy of 1.96  TeV at the Fermilab Tevatron collider using the D0 detector. No indication for such a resonance was found in a data sample corresponding to an integrated luminosity of 370  pb(−1). We set upper limits on the cross section times branching fraction for heavy resonance production at the 95% C.L. as a function of the resonance mass and width. The limits are interpreted within the framework of a specific model of excited quark production

Evidence for an anomalous like-sign dimuon charge asymmetry

This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.82.032001

Direct Limits on the B(0)(s) Oscillation Frequency

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.97.021802.We report results of a study of the B(0)(s) oscillation frequency using a large sample of B(0)(s) semileptonic decays corresponding to approximately 1  fb(−1) of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider in 2002–2006. The amplitude method gives a lower limit on the B(0)(s) oscillation frequency at 14.8  ps(−1) at the 95% C.L. At Δms=19  ps(−1), the amplitude deviates from the hypothesis A=0 (1) by 2.5 (1.6) standard deviations, corresponding to a two-sided C.L. of 1% (10%). A likelihood scan over the oscillation frequency, Δms, gives a most probable value of 19  ps(−1) and a range of 17<Δms<21  ps(−1) at the 90% C.L., assuming Gaussian uncertainties. This is the first direct two-sided bound measured by a single experiment. If Δms lies above 22  ps(−1), then the probability that it would produce a likelihood minimum similar to the one observed in the interval 16–22  ps(−1) is (5.0±0.3)%

Search for the Standard Model Higgs Boson in Tau Final States

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.102.251801.We present a search for the standard model Higgs boson using hadronically decaying tau leptons, in 1  fb(−1) of data collected with the D0 detector at the Fermilab Tevatron pp-bar collider. We select two final states: τ± plus missing transverse energy and b jets, and τ(+)τ(−) plus jets. These final states are sensitive to a combination of associated W/Z boson plus Higgs boson, vector boson fusion, and gluon-gluon fusion production processes. The observed ratio of the combined limit on the Higgs production cross section at the 95% C.L. to the standard model expectation is 29 for a Higgs boson mass of 115 GeV

Search for Dark Photons from Supersymmetric Hidden Valleys

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.103.081802.We search for a new light gauge boson, a dark photon, with the D0 experiment. In the model we consider, supersymmetric partners are pair produced and cascade to the lightest neutralinos that can decay into the hidden sector state plus either a photon or a dark photon. The dark photon decays through its mixing with a photon into fermion pairs. We therefore investigate a previously unexplored final state that contains a photon, two spatially close leptons, and large missing transverse energy. We do not observe any evidence for dark photons and set a limit on their production