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The observation of neutrino less double-beta decay would show that neutrinos are Majorana particles and provide information on neutrino mass. Attaining sensitivities for neutrino masses in the inverted hierarchy region requires large, tonne scale detectors with extremely low backgrounds, at the level of 10−3 counts keV−1 t−1 y−1 or lower in the region of the signal. The MAJORANA collaboration is constructing the DEMONSTRATOR, an array consisting of 40 kg of p-type point contact germanium detectors, at least half of which will be enriched to 86% in 76Ge. The primary aim is to show the feasibility for a future tonne scale measurement. With a sub-keV energy threshold, the array should also be able to search for light WIMP dark matter. This paper presents a brief update on the status of constructing the DEMONSTRATOR including an electroforming facility that is now operating underground at the Sanford Underground Research Facility.

The Majorana Demonstrator will search for the neutrinoless double–beta decay (0vββ) of the 76Ge isotope with a mixed array of enriched and natural germanium detectors. The observation of this rare decay would indicate the neutrino is its own anti–particle, demonstrate that lepton number is not conserved, and provide information on the absolute mass–scale of the neutrino. The Demonstrator is being assembled at the 4850 foot level of the Sanford Underground Research Facility in Lead, South Dakota. The array will be contained in a low–background environment and surrounded by passive and active shielding. The goals for the Demonstrator are: demonstrating a background rate less than 3 t−1 y−1 in the 4 keV region of interest (ROI) surrounding the 2039 keV 76Ge endpoint energy; establishing the technology required to build a tonne–scale germanium based double–beta decay experiment; testing the recent claim of observation of 0vββ [1]; and performing a direct search for light WIMPs (3-10 GeV/c2).

The Majorana Demonstrator is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of Germanium-76 and perform a search for weakly interacting massive particles with masses below 10 GeV. To reach the background rate goal in the neutrinoless double-beta decay region of interest of 4 counts/keV/t/y, the DEMONSTRATOR will utilize a number of background reduction strategies, including a time-correlated event cut for 68Ge that requires a sub-keV energy threshold. This low energy threshold allows the DEMONSTRATOR to extend its physics reach to include a search for light WIMPs. We will discuss the detector systems and data analysis techniques required to achieve sub-keV thresholds as well as present the projected dark matter sensitivities of the Majorana Demonstrator.

The Majorana Demonstrator will search for the neutrinoless double-beta (ββ0ν) decay of the isotope Ge with a mixed array of enriched and natural germanium detectors. The observation of this rare decay would indicate that the neutrino is its own antiparticle, demonstrate that lepton number is not conserved, and provide information on the absolute mass scale of the neutrino. The Demonstrator is being assembled at the 4850-foot level of the Sanford Underground Research Facility in Lead, South Dakota. The array will be situated in a low-background environment and surrounded by passive and active shielding. Here we describe the science goals of the Demonstrator and the details of its design.

Purpose: To explore poor Edmontonians' access to medical treatment services. Methods: Data were collected during interviews with 130 poor Edmontonians. Results: 38% of study participants had failed to obtain physician services when they were sick or bothered by a health problem, and 40% who had been prescribed a medication had not filled the prescription. Participants experienced three main barriers to access: lack of money, lack of comprehensive health care coverage, and lack of affordable transportation. Findings suggest that a variety of health care and social assistance policies limit access to treatment services for people living in poor families. Conclusion: Despite the principles of the Canada Health Act, access to medical treatment is not based solely on need, but is tied, in part, to income. There is a need for health care, social, and economic policies that aim to reduce the barriers that limit access to physician services and prescription medications by people living in poverty. Objet : Explorer l'accès aux services thérapeutiques essentiels dont bénéficient les résidents(es) défavorisé(e)s de la ville d'Edmonton. Méthodes : Les données ont été colligées lors d'entrevues effectuées auprès de 130 résidents(es) d'Edmonton vivant sous le seuil de la pauvreté. Résultats : 38 % des participants(es) à l'étude ne se sont pas prévalu(e)s des services d'un médecin lorsque cela s'avéra nécessaire et 40% n'ont pas fait remplir leur ordonnance médicale. Trois principaux obstacles semblent contribuer à limiter l'accès des participants(es) aux soins de santé de base : l'insuffisance de moyens financiers, une assurance médicale partielle, et l'absence de moyens de transport abordables. Les résultats suggèrent qu'une variété de politiques sur les soins de santé et sur l'aide sociale restreignent l'accès aux services thérapeutiques essentiels qu'ont les individus vivant dans des familles défavorisées. Conclusion : Malgré les principes qui soustendent la Loi canadienne sur la santé, l'accès aux soins de santé n'est pas uniquement fondé sur le besoin, il est également partiellement lié au revenu. Il devient donc impératif d'implanter des politiques de soins de santé ainsi que des politiques sociales et économiques visant à réduire les obstacles qui limitent l'accès aux services thérapeutiques de base et aux ordonnances médicales pour les personnes vivant dans la pauvreté.

We present the first model-independent measurement of the CKM unitarity triangle angle ϕ3 using B±→ D(KS0\\[ {K}_{\\mathrm{S}}^0 \\]π+π−π0) K± decays, where D indicates either a D0 or D¯\\[ \\overline{D} \\]0 meson. Measurements of the strong-phase difference of the D →KS0\\[ {K}_{\\mathrm{S}}^0 \\]π+π−π0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106BB¯\\[ \\overline{B} \\] events collected at the Υ(4S) resonance. We obtain ϕ3 = (5.7−8.8+10.2\\[ {5.7}_{-8.8}^{+10.2} \\]±3.5±5.7)° and the suppressed amplitude ratio rB = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ3 is (−29.7, 109.5)°, which is consistent with the current world average.

We report evidence for the charged charmed-strange baryon \\[\\Xi _{c}(2930)^+\\] with a signal significance of 3.9\\[\\sigma \\] with systematic errors included. The charged \\[\\Xi _{c}(2930)^+\\] is found in its decay to \\[K_{S}^{0} \\Lambda _{c}^+\\] in the substructure of \\[\\bar{B}^{0} \\rightarrow K^{0}_{S} \\Lambda _{c}^{+} \\bar{\\Lambda }_{c}^{-}\\] decays. The measured mass and width are \\[[2942.3 \\pm 4.4 ({\\mathrm{stat.}}) \\pm {1.5}({\\mathrm{syst.}})]\\] MeV/\\[c^{2}\\] and \\[[14.8 \\pm 8.8({\\mathrm{stat.}}) \\pm {2.5}({\\mathrm{syst.}})]\\] MeV, respectively, and the product branching fraction is \\[\\mathcal{B}(\\bar{B}^{0} \\rightarrow \\Xi _c(2930)^{+} \\bar{\\Lambda }_{c}^{-}) \\mathcal{B}(\\Xi _c(2930)^{+}\\rightarrow \\bar{K}^{0} \\Lambda _{c}^{+})=[2.37 \\pm 0.51 ({\\mathrm{stat.}})\\pm 0.31({\\mathrm{syst.}})]\\times 10^{-4}\\]. We also measure \\[\\mathcal{B}(\\bar{B}^{0} \\rightarrow \\bar{K}^{0} \\Lambda _{c}^{+} \\bar{\\Lambda }_{c}^{-}) = [3.99 \\pm 0.76({\\mathrm{stat.}}) \\pm 0.51({\\mathrm{syst.}})] \\times 10^{-4}\\] with greater precision than previous experiments, and present the results of a search for the charmonium-like state Y(4660) and its spin partner, \\[Y_{\\eta }\\], in the \\[\\Lambda _{c}^{+}\\bar{\\Lambda }_{c}^{-}\\] invariant mass spectrum. No clear signals of the Y(4660) or \\[Y_{\\eta }\\] are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of \\[(772\\pm 11)\\times 10^{6} B\\bar{B}\\] pairs collected at the \\[\\Upsilon (4S)\\] resonance by the Belle detector at the KEKB asymmetric energy electron-positron collider.

We study bottomonium production in association with an \\[\\eta \\] meson in \\[e^+e^-\\] annihilations near the \\[\\varUpsilon (5S)\\], at a centre-of-mass energy of \\[\\sqrt{s}=10.866\\] GeV. The results are based on the 121.4 fb\\[^{-1}\\] data sample collected by the Belle experiment at the asymmetric-energy KEKB collider. Only the \\[\\eta \\] meson is reconstructed and the missing-mass spectrum of \\[\\eta \\] candidates is investigated. We observe the \\[e^+e^-\\rightarrow \\eta \\varUpsilon _J(1D)\\] process and find evidence for the \\[e^+e^-\\rightarrow \\eta \\varUpsilon (2S)\\] process, while no significant signals of \\[\\varUpsilon (1S)\\], \\[h_b(1P)\\], nor \\[h_b(2P)\\] are found. Cross sections for the studied processes are reported.

We report the first observation of the Ξc(2930)0 charmed-strange baryon with a significance greater than 5σ. The Ξc(2930)0 is found in its decay to K-Λc+ in B-→K-Λc+Λ¯c- decays. The measured mass and width are [2928.9±3.0(stat.)-12.0+0.9(syst.)] MeV/c2 and [19.5±8.4(stat.)-7.9+5.9(syst.)] MeV, respectively, and the product branching fraction is B(B-→Ξc(2930)0Λ¯c-)B(Ξc(2930)0→K-Λc+)=[1.73±0.45(stat.)±0.21(syst.)]×10-4. We also measure B(B-→K-Λc+Λ¯c-)=[4.80±0.43(stat.)±0.60(syst.)]×10-4 with improved precision, and search for the charmonium-like state Y(4660) and its spin partner, Yη, in the Λc+Λ¯c- invariant mass spectrum. No clear signals of the Y(4660) nor its spin partner are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of (772±11)×106BB¯ pairs collected at the Υ(4S) resonance by the Belle detector at the KEKB asymmetric energy electron–positron collider.

A bstract We report a search for B decays to selected final states with the η c meson: B ± → K ± η c π + π − , B ± → K ± η c ω , B ± → K ± η c η and B ± → K ± η c π 0 . The analysis is based on 772 × 10 6 B B ¯ pairs collected at the Υ(4 S ) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0 . 6–5 . 3) × 10 −4 . We also search for molecular-state candidates in the D 0 D ¯ ∗ 0 − D ¯ 0 D ∗ 0 , D 0 D ¯ 0 + D ¯ 0 D 0 and D ∗ 0 D ¯ ∗ 0 + D ¯ ∗ 0 D ∗ 0 combinations, neutral partners of the Z (3900) ± and Z (4020) ± , and a poorly understood state X (3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0 . 6–6 . 9) × 10 −5 .