Using the QCD sum rules we test if the charmonium-like structure Y (4260), observed in the J/ψππ invariant mass spectrum, can be described as a exotic state, with a J/ψ f0(980) molecular current with J P C = 1 −− . By exotic we mean a more complex structure than the simple quark-antiquark state and not exotic J P C quantum numbers. We consider the contributions of condensates up to dimension six and we work at leading order in αs. We keep terms which are linear in the strange quark mass ms. The mass obtained for such state is mY = (4.67 ± 0.09) GeV, when the vector and scalar mesons are in color singlet configurations. We conclude that the proposed current can better describe the Y (4660) state that could be interpreted as a Ψ(2S) f0(980) molecular state. We also use different J P C = 1 −− currents to study the recently observed Y b (10890) state. Our findings indicate that the Y b (10890) can be well described by a scalar-vector tetraquark current.

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The QCD Sum Rules approach had proposed by Shifman, Vaishtein Zakharov Novikov, Okun and Voloshin (SVZNOV) in 1979 and has been used as a method for extracting useful properties of hadrons having the lowest mass, called as ground states. On the other hand, the most recent experimental results make it clear that the study of the excited states can help to solve many puzzles about the new XYZ mesons structure. In this paper, we propose a new method to study the first excited state of the vector mesons, in particular we focus our attention on the study of the ρ vector mesons, that have been studied previously by SVZNOV method. In principle, the method that we used is a simple modification to the shape of the spectral density of the SVZNOV method, which is written as “pole + continuum”, to a new functional form “pole + pole + continuum”. In this way, We may obtain the ρ and the ρ 2 S masses and also their decay constants.

Introduction: The use of realistic simulation in health education has grown rapidly in teaching centers across Brazil. Its implementation in teaching, enables the experience in real situations, in addition to reproducing all aspects of the clinical environment, enabling the team to manage real situations with excellence. Objective: To report the experience of using realistic simulations in the discipline of "Comprehensive Care for Women's Health" at a private university. Methodology: This is an experience report based on a realistic simulation activity carried out by nursing students in the 6th semester during the discipline of "Comprehensive Care for Women's Health". Results and discussion: during the experience, a realistic simulation of a clinical case with the theme "Gestational Diabetes" was elaborated, in which a group of 7 students simulated the nursing consultation to a patient diagnosed with the pathology. Conclusion: The simulation reinforced the learning of students who performed cases aimed at real care in certain complications caused by diseases that affect women's health.