Zobrazeno 1 - 10
of 1 835
pro vyhledávání: '"Fiolhais, Miguel"'
In this paper, we propose two sets of different CP-sensitive observables inspired by the Higgs production in association with the top quark. We employ a Dark Matter simplified model that couples a scalar particle with three generation fermions with a
Externí odkaz:
http://arxiv.org/abs/2404.10852
This paper presents a double spatio-temporal localized Dirac-delta solution for the linear wave equation. The solution arises from the interference of sinusoidal waves with frequencies that vary as a function of the time of emission. It is shown that
Externí odkaz:
http://arxiv.org/abs/2402.15519
Autor:
Chaparro, Carlos, Ferroglia, Andrea, Fiolhais, Miguel C. N., Gonzalez-Urbina, Luis, Milewski, Tomasz
Publikováno v:
The Physics Teacher 61, 182 (2023)
The objective of this paper is to provide a pedagogical framework for the phenomenon of orbital decay of satellites in low Earth orbit. The dynamics of orbital decay are derived considering atmospheric drag as the only dissipative mechanism and using
Externí odkaz:
http://arxiv.org/abs/2303.02099
Publikováno v:
European Journal of Physics 43, 035602 (2022)
The objective of this paper is to study the tidally locked 3:2 spin-orbit resonance of Mercury around the Sun. In order to achieve this goal, the effective potential energy that determines the spinning motion of an ellipsoidal planet around its axis
Externí odkaz:
http://arxiv.org/abs/2203.09297
Publikováno v:
American Journal of Physics 88, 1059 (2020)
The purpose of this work is to study the phenomenon of tidal locking in a pedagogical framework by analyzing the effective gravitational potential of a two-body system with two spinning objects. It is shown that the effective potential of such a syst
Externí odkaz:
http://arxiv.org/abs/2011.10833
Publikováno v:
Phys. Rev. D 100, 075034 (2019)
This paper studies new possibilities to directly measure a hypothetical $CP$-odd (pseudoscalar) component in the top-quark Yukawa coupling. In particular, the role of the $t{\bar t} h$ center-of-mass rest frame in the associated production of a top p
Externí odkaz:
http://arxiv.org/abs/1909.00490
Autor:
Casler, Helenka, Manganel, Matthew, Fiolhais, Miguel C. N., Ferroglia, Andrea, Onofre, António
Publikováno v:
Phys. Rev. D 99, 054011 (2019)
A new algorithm is presented to perform the full kinematic reconstruction of top quark pair events produced at future electron-positron colliders in the case of dilepton decays of the $W$ bosons to electrons or muons. The momentum components of the u
Externí odkaz:
http://arxiv.org/abs/1902.01976
Publikováno v:
Mod. Phys. Lett. A, Vol. 34, 1950142 (2019)
The combination of the latest and most precise measurements of several top quark properties is presented in this paper in order to establish allowed regions on anomalous contributions to the Lorentz structure of the $Wtb$ vertex. These measurements i
Externí odkaz:
http://arxiv.org/abs/1811.02492
Autor:
Déliot, Frédéric, Faria, Ricardo, Fiolhais, Miguel C. N., Lagarelhos, Pedro, Onofre, António, Pease, Christopher M., Vasconcelos, Ana
Publikováno v:
Phys. Rev. D 97, 013007 (2018)
The latest results on top quark physics, namely single top quark production cross sections, $W$-boson helicity and asymmetry measurements are used to probe the Lorentz structure of the $Wtb$ vertex. The increase of sensitivity to new anomalous physic
Externí odkaz:
http://arxiv.org/abs/1711.04847
Publikováno v:
Phys. Rev. D 96, 073005 (2017)
We study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider. We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to the invarian
Externí odkaz:
http://arxiv.org/abs/1707.01803