High Energy Physics

High energy physics involves the study of the fundamental building blocks of nature at the shortest distances. These are the fundamental particles that are described by quantum fields such as the Higgs field found at CERN's Large Hadron Collider (LHC). Our group studies theories beyond the Standard Model of particle physics both from theoretical and phenomenological perspectives.

For our latest developments/activities in this area, please see the listing below.


Latest High Energy Physics Publications

A convenient gauge for virial identities in axial symmetry, J. M. S. Oliveira, A. M. Pombo; arXiv:2207.12451 [gr-qc].

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Phenomenology at the Large Hadron Collider with Deep Learning: the case of vector-like quarks decaying to light jets, Felipe F. Freitas, João Gonçalves, António P. Morais, Roman Pasechnik; arXiv:2204.12542 [hep-ph].

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CDF II W-mass anomaly faces first-order electroweak phase transition, Andrea Addazi, Antonino Marciano, António P. Morais, Roman Pasechnik, Hao Yang; arXiv:2204.10315 [hep-ph].

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Gravitational-Wave Signatures of Chiral-Symmetric Technicolor, Hao Yang, Felipe F. Freitas, Antonino Marciano, António P. Morais, Roman Pasechnik, João Viana; arXiv:2204.00799 [hep-ph].

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Phenomenology of a flavoured multiscalar BGL-like model with three generations of massive neutrinos, Pedro M. Ferreira, Felipe F. Freitas, João Gonçalves, António P. Morais, Roman Pasechnik, Vasileios Vatellis; arXiv:2202.13153 [hep-ph].

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Latest High Energy Physics News & Events

A waveform catalogue for Proca star collisions

The detection of gravitational waves has been one of the most exciting scientific developments of the XXIst century. These detections are theory-driven, they rely on the existence of waveform libraries, which have been constructed for binary black holes and neutron stars. Gr@v members have collaborated on the construction of the first waveform catalogue for exotic compact objects, an effort led by former Gr@v member Nicolas Sanchis Gual (now at the U. Valencia).

The fate of the light-ring instability

In the paper "The fate of the light-ring instability" Gr@v members P. Cunha, C. Herdeiro and E. Radu, together with former member, currently at the U. Valencia, N. Sanchis-Gual, have unveiled the mystery of the fate of a large class of horizonless ultracompact objects, that could be potential black hole foils.

 

 

A long standing intriguing possibility is if the astrophysical black hole candidates could be some other kind of mysterious objects but without event horizons, the defining property of black holes.