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  • Unroofed coronary sinus: multi-modality evaluation
    Publication . Rodrigues, Ricardo; Serrão, Gomes; Susana, Gomes; Pereira, Décio
    A 61-year-old man was referred for mild exercise intolerance. He had a previous history of chronic obstructive pulmonary disease, arterial hypertension and was an ex-smoker. Physical examination revealed a systolic murmur and his electrocardiogram showed sinus rhythm and an incomplete right bundle-branch block. A transthoracic echocardiogram was performed and showed mild left ventricular hypertrophy, mild rheumatic mitro-aortic disease, left atrial (LA) enlargement. and dilated right ventricle (figure 1 A-D), dilated coronary sinus (CS) (panel A, small arrow) and a prominent CS flux into right atria (RA) (panel C, D, large arrow). Transoesophageal echocardiography revealed a communication between the LA and the RA through a dilated coronary sinus (panel E, large arrow). A cardiac computed tomography confirmed the diagnosis of an unroofed coronary sinus showing the shunt between LA and RA through a dilated CS (panel F, large arrow). Unroofed coronary sinus: multi-modality evaluation
    2017-02-28Journal article Open access Show more
  • Searches for invisible decays of the Higgs boson in pp collisions at $\sqrt{s}$ = 7, 8, and 13 TeV
    Publication . CMS collaboration (2273 authors); Calpas, Betty; Nayak, Aruna; Bargassa, Pedrame; Beirão Da Cruz E Silva, Cristóvão; Di Francesco, Agostino; Faccioli, Pietro; Ferreira Parracho, Pedro Guilherme; Gallinaro, Michele; Hollar, Jonathan; Leonardo, Nuno; Lloret Iglesias, Lara; Rodrigues Antunes, Joao; Seixas, Joao; Toldaiev, Oleksii; Vadruccio, Daniele; Varela, Joao; Vischia, Pietro; David Tinoco Mendes, Andre; Silva, Pedro; Musella, Pasquale; Pela, Joao
    Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb$^{−1}$ at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The search channels target Higgs boson production via gluon fusion, vector boson fusion, and in association with a vector boson. Upper limits are placed on the branching fraction of the Higgs boson decay to invisible particles, as a function of the assumed production cross sections. The combination of all channels, assuming standard model production, yields an observed (expected) upper limit on the invisible branching fraction of 0.24 (0.23) at the 95% confidence level. The results are also interpreted in the context of Higgs-portal dark matter models.
    2017-02-28Journal article Open access Show more