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- Instituto Politécnico de LisboaPT125 papers
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7 papers · 1 filter
Nuclear dependence of light neutral meson production in p-A collisions at 400 GeV with NA60
R. Arnaldi, K. Banicz, K. Borer +51
The NA60 experiment has studied low-mass muon pair production in proton-nucleus collisions with a system of Be, Cu, In, W, Pb and U targets, using a 400 GeV proton beam at the CERN…
The GRAVITY Young Stellar Object survey IV. The CO overtone emission in 51 Oph at sub-au scales
GRAVITY Collaboration, M. Koutoulaki, R. Garcia Lopez +69
51 Oph is a Herbig Ae/Be star that exhibits strong near-infrared CO ro-vibrational emission at 2.3 micron, most likely originating in the innermost regions of a circumstellar disc.…
The magic square of Lie groups: the case
Tevian Dray, John Huerta, Joshua Kincaid
A unified treatment of the analog of the Freudenthal-Tits magic square of Lie groups is given, providing an explicit representation in terms of matrix groups over comp…
The -meson: four-quark vs. two-quark components and decay width in a Bethe-Salpeter approach
Nico Santowsky, Gernot Eichmann, Christian S. Fischer +2
We study the dynamical generation of resonances in isospin singlet channels with mixing between two- and four-quark states. To this end we generalise a Bethe-Salpeter approach to f…
Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
P. Mollière, T. Stolker, S. Lacour +25
Clouds are ubiquitous in exoplanet atmospheres and represent a challenge for the model interpretation of their spectra. Complex cloud models are too numerically costly for generati…
Extending Trinity to the Scalar Sector through Discrete Flavoured Symmetries
João M. Alves, Francisco J. Botella, Gustavo C. Branco +1
We conjecture the existence of a relation between elementary scalars and fermions, making it plausible the existence of three Higgs doublets. We introduce a Trinity Principle (TP)…