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pro vyhledávání: '"Perries , Stephane"'
The relation between the mass and spin of stellar-mass binary black holes (BBHs) has been proposed to be a smoking gun for the presence of multiple formation channels for compact objects. First-generation black holes (BHs) formed by isolated binary s
Externí odkaz:
http://arxiv.org/abs/2406.01679
Gravitational waves (GWs) from compact binary coalescences (CBCs) can constrain the cosmic expansion of the universe. In the absence of an associated electromagnetic counterpart, the spectral sirens method exploits the relation between the detector f
Externí odkaz:
http://arxiv.org/abs/2312.11627
Autor:
Mastrogiovanni, Simone, Pierra, Grégoire, Perriès, Stéphane, Laghi, Danny, Santoro, Giada Caneva, Ghosh, Archisman, Gray, Rachel, Karathanasis, Christos, Leyde, Konstantin
We present icarogw 2.0, a pure CPU/GPU python code developed to infer astrophysical and cosmological population properties of noisy, heterogeneous, and incomplete observations. icarogw 2.0 is mainly developed for compact binary coalescence (CBC) popu
Externí odkaz:
http://arxiv.org/abs/2305.17973
Autor:
Mastrogiovanni, Simone, Laghi, Danny, Gray, Rachel, Santoro, Giada Caneva, Ghosh, Archisman, Karathanasis, Christos, Leyde, Konstantin, Steer, Danièle A., Perriès, Stéphane, Pierra, Grégoire
Gravitational wave (GW) sources at cosmological distances can be used to probe the expansion rate of the Universe. GWs directly provide a distance estimation of the source but no direct information on its redshift. The optimal scenario to obtain a re
Externí odkaz:
http://arxiv.org/abs/2305.10488
This paper investigates a signature of Lorentz invariance violation with the $t\bar{t}$ production at the LHC and future hadron colliders. Possible deviations from the Lorentz symmetry remain poorly constrained in the top quark sector. With a dedicat
Externí odkaz:
http://arxiv.org/abs/1908.11256
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Akademický článek
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We consider lepton flavour violating decays of the top quark, mediated by four-fermion operators. We compile constraints on a complete set of SU(3)*U(1)-invariant operators, arising from their loop contributions to rare decays and from HERA's single
Externí odkaz:
http://arxiv.org/abs/1507.07163
Publikováno v:
JHEP 1303 (2013) 004
We study the phenomenology at the Large Hadron Collider of an exotic vector-like quark X with charge +5/3. We relax the assumption of a 100% branching into W t and allow for an arbitrary rate into W plus light quarks, thus covering all possible scena
Externí odkaz:
http://arxiv.org/abs/1211.4034
Autor:
Cacciapaglia, Giacomo, Chierici, Roberto, Deandrea, Aldo, Panizzi, Luca, Perries, Stèphane, Tosi, Silvano
Publikováno v:
JHEP10(2011)042
We explore the four top signal ttbar ttbar at the 7 TeV Large Hadron Collider as a probe of physics beyond the standard model. Enhancement of the corresponding cross-section with respect to the Standard Model value can probe the electroweak symmetry
Externí odkaz:
http://arxiv.org/abs/1107.4616