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

Lensing and dynamics of ultra-compact bosonic stars, Pedro V. P. Cunha, José A. Font, Carlos Herdeiro, Nicolas Sanchis-Gual, Miguel Zilhão; arXiv:1709.06118 [gr-qc].

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Regular Articles
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NLO electroweak corrections in general scalar singlet models, Raul Costa, Marco O. P. Sampaio, Rui Santos, JHEP 1707 (2017) 081e-print: arXiv: 1704.02327 [hep-ph].

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Regular Articles
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Phenomenological Comparison of Models with Extended Higgs Sectors, M. Muhlleitner, M. O. P. Sampaio, R. Santos, J. Wittbrodt, JHEP (2017) 2017: 132, e-Print: arXiv: 1703.07750 [hep-ph].

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Regular Articles
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The N2HDM under Theoretical and Experimental Scrutiny, Margarete Muhlleitner, Marco O. P. Sampaio, Rui Santos, Jonas Wittbrodt, JHEP 1703 (2017) 094; e-Print: arXiv: 1612.01309 [hep-ph].

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Regular Articles
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Reviving trinification models through an E6-Extended supersymmetric GUT, José E. Camargo-Molina, António P. Morais, Astrid Ordell, Roman Pasechnik, Marco O. P. Sampaio, Jonas Wessén, Phys. Rev. D95 (2017) 075031; e-Print: arXiv:1610.03642 [hep-ph].

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Regular Articles
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Latest High Energy Physics News & Events

TeV-scale gravity at the LHC, and the way forward in an era lacking significant excesses

N/A
Speaker
Elena Villhauer (U. C. Irvine ATLAS, CERN)
Event date
Venue
GAP room
Event type
Abstract: The hierarchy problem and the irreconcilability of quantum mechanics and general relativity are two of the most frustrating problems that the Standard Model fails to solve. The existence of extra dimensions, however, would provide the much awaited solutions. If extra dimensions exist and push the Planck scale down to the TeV range, signatures of extra dimensions could be found at the Large Hadron Collider in Geneva, Switzerland. Results of TeV-scale gravity searches with the ATLAS and CMS detectors at 13 TeV are summarized, and outlook is provided on the best way forward in the absence of discoveries.

On the way towards a phenomenologically consistent GUT

N/A
Speaker
Roman Pasechnik (THEP - Lund U.)
Event date
Venue
GAP room
Event type

Abstract: A new E8-inspired SUSY GUT theory unifying gauge and Yukawa interactions via unification of color, left-right and family symmetries will be presented. The prominent phenomenological potential of this model in predicting the fermion mass/mixing spectra will be discussed.

 

Shaping the fermion sector with CP symmetry of order 4

N/A
Speaker
Igor Ivanov (CFTP - IST)
Event date
Venue
GAP room
Event type

Abstract: It is well known that discrete symmetries such as CP are not uniquely defined in quantum field theory, and a certain freedom of their definition exists. In particular, the CP transformation can be of order 4, not 2, and still lead to acceptable phenomenology.