11,894 research outputs found

    Status and prospects for BSM ( (N)MSSM) Higgs searches at the LHC

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    Searches for Beyond the Standard Model Higgs processes in the context of Minimal Supersymmetric Standard Model and Next to MSSM are presented. The results are based on the first LHC run of pp collision data recorded by the ATLAS and CMS experiments at the CERN Large Hadron Collider at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of about 5 and 20 fb1^{-1} respectively. Current searches constrain large parts of the parameter space. No evidence for BSM Higgs is found.Comment: Talk presented at the International Workshop on Future Linear Colliders (LCWS15), Whistler, Canada, 2-6 November 201

    Statistical Mechanics of finite arrays of coupled bistable elements

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    We discuss the equilibrium of a single collective variable characterizing a finite set of coupled, noisy, bistable systems as the noise strength, the size and the coupling parameter are varied. We identify distinct regions in parameter space. The results obtained in prior works in the asymptotic infinite size limit are significantly different from the finite size results. A procedure to construct approximate 1-dimensional Langevin equation is adopted. This equation provides a useful tool to understand the collective behavior even in the presence of an external driving force

    Examining Retirement Housing Preferences Among International Retiree Migrants

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    Housing demand models based on individual consumers' utility function reflect preferences about the structure and lot, neighborhood, and location as related to socioeconomic characteristics of the occupants. As a growing proportion of aging residents in many countries are undertaking late life moves, their preferences will have an influence on destination housing markets. We examine the characteristics, attitudes and preferences about retirement housing among immigrant retirees currently living in traditional housing in a retirement destination in Alicante, Spain. Using results from a survey of German and British retirees living in the region, we find through logistic regression that preference for retirement housing is associated with aging and gaining access to in-home support services.Housing preferences; Demographic trends; Seniors housing

    Stochastic resonance with weak monochromatic driving: gains above unity induced by high-frequency signals

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    We study the effects of a high-frequency (HF) signal on the response of a noisy bistable system to a low-frequency subthreshold sinusoidal signal. We show that, by conveniently choosing the ratio of the amplitude of the HF signal to its frequency, stochastic resonance gains greater than unity can be measured at the low-frequency value. Thus, the addition of the HF signal can entail an improvement in the detection of weak monochromatic signals. The results are explained in terms of an effective model and illustrated by means of numerical simulations.Comment: 5 pages, 2 figure

    A new div-curl result. Applications to the homogenization of elliptic systems and to the weak continuity of the Jacobian

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    In this paper a new div-curl result is established in an open set Ω\Omega of RN\mathbb{R}^N, N2N\geq 2, for the product of two sequences of vector-valued functions which are bounded respectively in Lp(Ω)NL^p(\Omega)^N and Lq(Ω)NL^q(\Omega)^N, with 1/p+1/q=1+1/(N1){1/p}+{1/q}=1+{1/(N-1)}, and whose respectively divergence and curl are compact in suitable spaces. We also assume that the product converges weakly in W1,1(Ω)W^{-1,1}(\Omega). The key ingredient of the proof is a compactness result for bounded sequences in W1,q(Ω)W^{1,q}(\Omega), based on the imbedding of W1,q(S_N1)W^{1,q}(S\_{N-1}) into Lp(S_N1)L^{p'}(S\_{N-1}) (S_N1S\_{N-1} the unit sphere of RN\mathbb{R}^N) through a suitable selection of annuli on which the gradients are not too high, in the spirit of De Giorgi and Manfredi. The div-curl result is applied to the homogenization of equi-coercive systems whose coefficients are equi-bounded in Lρ(Ω)L^\rho(\Omega) for some \rho\textgreater{}{N-1\over 2} if N\textgreater{}2, or in L1(Ω)L^1(\Omega) if N=2N=2. It also allows us to prove a weak continuity result for the Jacobian for bounded sequences in W1,N1(Ω)W^{1,N-1}(\Omega) satisfying an alternative assumption to the LL^\infty-strong estimate of Brezis and Nguyen. Two examples show the sharpness of the results
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