The phase diagram of two bosonic chains coupled by interchain hopping and interchain boson boson repulsion is investigated by means of bosonization and renormalization group techniques. It comprises two types of charge density waves, a conventional superfluid phase and a superfluid phase made of condensed boson pairs. The effect of a random potential on that system is also derived. Compared wit...

The phase diagram of two bosonic chains coupled by interchain hopping and interchain boson boson repulsion is investigated by means of bosonization and renormalization group techniques. It comprises two types of charge density waves, a conventional superfluid phase and a superfluid phase made of condensed boson pairs. The effect of a random potential on that system is also derived. Compared wit...

We discuss in detail signals for CP violation in the Higgs boson and tau–slepton sectors through the production processes μ+μ− → τ̃ i τ̃ j , where i, j = 1, 2 label the two τ slepton mass eigenstates in the minimal supersymmetric standard model. We assume that the soft breaking parameters of third generation sfermions contain CP violating phases, which induce CP violation in the Higgs sector thro...

This paper shortly reports on the results of Higgs boson searches performed at LEP and Tevatron. No signal is found and limits on the mass and couplings of the Higgs boson are derived. Interpreting the data in the framework of the Standard Model, the 95% C.L. lower limit of 114.4 GeV on the Higgs boson mass is obtained.

We calculate the rates for lepton number violating processes via the exchange of the Z ′ boson occuring in top-color assisted technicolor. We found that μ-e conversion in nuclei is about an order of magnitude better than μ → 3e for constraining the magnitudes of the lepton mixing angles. The decay μ → eγ yields much weaker bounds. The current experimental limits allow for a mass of the new gaug...

A search has been performed for the Standard Model Higgs boson in the data collected with the ALEPH detector in 2000. An excess of 3σ above the background expectation is found. The observed excess is consistent with the production of the Higgs boson with a mass close to 114 GeV/c 2 .

This article reports on a search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks, using data from 20.3 fb−1 of pp collisions at a center-of-mass energy of 8 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb̄ system with either a pair of small-radius jets, or a single large-radi...

This article reports three analyses of W and Z boson properties from the DØ experiment at the Fermilab Tevatron. The W boson mass measurement using 1 f b −1 DØ data is presented. This measurement reaches a 43 MeV precision on the W boson mass, which is currently the most precise result from a single experiment. It is used to place indirect constraint on the mass of the hypothetical Higgs boson....