Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector

Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √ s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT > 120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between Emiss T > 150 GeV and Emiss T > 700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presente

Assistência pré-natal à adolescente e os atributos da Atenção Primária à Saúde

OBJECTIVE: evaluate prenatal care for adolescents in health units, in accordance with the attributes of Primary Health Care (PHC) guidelines. METHOD: quantitative study conducted with health professionals, using the Primary Care Assessment Tool-Brazil to assess the presence and extent of PHC attributes. RESULTS: for all the participating units, the attribute Access scored =6.6; the attributes Longitudinality, Coordination (integration of care), Coordination (information systems) and Integrality scored =6.6, and the Essential Score =6.6. Comparing basic units with family health units, the attribute scores were equally distributed; Accessibility scored =6.6, the others attributes scored =6.6; however, in the basic units, the Essential Score was =6.6 and, in the family health units, =6.6. CONCLUSION: expanding the coverage of family health units and the training of professionals can be considered strategies to qualify health care.OBJETIVO: evaluar la atención prenatal a las adolescentes en unidades de salud, según los atributos de la Atención Primaria a la Salud. MÉTODO: estudio de abordaje cuantitativo, realizado con profesionales de la salud, utilizando el instrumento Primary Care Assessment Tool-Brasil para analizar la presencia y extensión de los atributos vinculados a la APS en las unidades de salud. RESULTADOS: para todas las unidades participantes, el atributo Acceso obtuvo un puntaje =6,6; los atributos Longitudinalidad, Coordinación (integración de cuidados), Coordinación (sistemas de información) e Integralidad obtuvieron puntajes =6,6 y el Puntaje Esencial fue =6,6. Comparando las unidades básicas de salud y las unidades de salud de la familia, los puntajes están igualmente distribuidos: Accesibilidad =6,6 y los demás atributos con puntajes =6,6; sin embargo, el puntaje Esencial en las unidades básicas fue =6,6 y el de las unidades de salud de la familia fue =6,6. CONCLUSIÓN: la ampliación de la cobertura de las unidades de salud de la familia y la capacitación profesional pueden ser estrategias para calificar la atención a la salud.OBJETIVO: avaliar a atenção pré-natal às adolescentes em unidades de saúde, segundo os atributos da Atenção Primária à Saúde. MÉTODO: estudo de abordagem quantitativa, realizado com profissionais de saúde, utilizando-se o instrumento Primary Care Assessment Tool-Brasil, para analisar a presença e extensão dos atributos. RESULTADOS: para todas as unidades participantes, o atributo acesso obteve escore =6,6; os atributos longitudinalidade, coordenação (integração de cuidados), coordenação (sistemas de informação) e integralidade obtiveram escores =6,6 e escore essencial =6,6. Comparando-se as unidades básicas e as unidades de saúde da família, os escores estão igualmente distribuídos: acessibilidade: =6,6 e os demais atributos com escores =6,6, no entanto, o escore essencial nas unidades básicas foi =6,6 e nas unidades de saúde da família foi =6,6. CONCLUSÃO: a ampliação da cobertura das unidades de saúde da família e a capacitação profissional podem ser estratégias para qualificar a atenção à saúde

Assessment of primary health care: health professionals’ perspective

Objective To assess primary health care attributes of access to a first contact, comprehensiveness, coordination, continuity, family guidance and community orientation. Method An evaluative, quantitative and cross-sectional study with 35 professional teams in the Family Health Program of the Alfenas region, Minas Gerais, Brazil. Data collection was done with the Primary Care Assessment Tool - Brazil, professional version. Results Results revealed a low percentage of medical experts among the participants who evaluated the attributes with high scores, with the exception of access to a first contact. Data analysis revealed needs for improvement: hours of service; forms of communication between clients and healthcare services and between clients and professionals; the mechanism of counter-referral. Conclusion It was concluded that there is a mismatch between the provision of services and the needs of the population, which compromises the quality of primary health care

Two-particle azimuthal correlations in photonuclear ultraperipheral Pb plus Pb collisions at 5.02 TeV with ATLAS

Two-particle long-range azimuthal correlations are measured in photonuclear collisions using 1.7 nb − 1 of 5.02 TeV Pb + Pb collision data collected by the ATLAS experiment at the CERN Large Hadron Collider. Candidate events are selected using a dedicated high-multiplicity photonuclear event trigger, a combination of information from the zero-degree calorimeters and forward calorimeters, and from pseudorapidity gaps constructed using calorimeter energy clusters and charged-particle tracks. Distributions of event properties are compared between data and Monte Carlo simulations of photonuclear processes. Two-particle correlation functions are formed using charged-particle tracks in the selected events, and a template-fitting method is employed to subtract the nonflow contribution to the correlation. Significant nonzero values of the second- and third-order flow coefficients are observed and presented as a function of charged-particle multiplicity and transverse momentum. The results are compared with flow coefficients obtained in proton-proton and proton-lead collisions in similar multiplicity ranges, and with theoretical expectations. The unique initial conditions present in this measurement provide a new way to probe the origin of the collective signatures previously observed only in hadronic collision

Measurement of the associated production of a Higgs boson decaying into b-quarks with a vector boson at high transverse momentum in pp collisions at s=13\sqrt{s}=13 TeV with the ATLAS detector

The associated production of a Higgs boson with a W or Z boson decaying into leptons and where the Higgs boson decays to a pair is measured in the high vector-boson transverse momentum regime, above 250 GeV, with the ATLAS detector. The analysed data, corresponding to an integrated luminosity of , were collected in proton–proton collisions at the Large Hadron Collider between 2015 and 2018 at a centre-of-mass energy of . The measured signal strength, defined as the ratio of the measured signal yield to that predicted by the Standard Model, is corresponding to an observed (expected) significance of 2.1 (2.7) standard deviations. Cross-sections of associated production of a Higgs boson decaying into b quark pairs with a W or Z gauge boson, decaying into leptons, are measured in two exclusive vector boson transverse momentum regions, 250–400 GeV and above 400 GeV, and interpreted as constraints on anomalous couplings in the framework of a Standard Model effective field theory

Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at √s = 13 TeV

Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into ℓνb are presented using 139 fb−1 of data collected by the ATLAS experiment during proton-proton collisions at the LHC. The fiducial cross-section at s = 13 TeV is measured to be σ = 1.267 ± 0.005 ± 0.053 pb, where the uncertainties reflect the limited number of data events and the systematic uncertainties, giving a total uncertainty of 4.2%. The cross-section is measured differentially as a function of variables characterising the tt¯ system and additional radiation in the events. The results are compared with various Monte Carlo generators, including comparisons where the generators are reweighted to match a parton-level calculation at next-to-next-to-leading order. The reweighting improves the agreement between data and theory. The measured distribution of the top-quark transverse momentum is used to search for new physics in the context of the effective field theory framework. No significant deviation from the Standard Model is observed and limits are set on the Wilson coefficients of the dimension-six operators OtG and Otq(8), where the limits on the latter are the most stringent to date. [Figure not available: see fulltext.]