M. C. N. Fiolhais
YOU?
Author Swipe
View article: Asymmetries in invisible dark matter mediator production associated with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mi>t</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover></mml:math> final states
Asymmetries in invisible dark matter mediator production associated with final states Open
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 mediator with top quarks. The recon…
View article: The Dirac-Delta Rogue Wave
The Dirac-Delta Rogue Wave Open
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…
View article: Orbital Decay in the Classroom
Orbital Decay in the Classroom Open
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 mechanis…
View article: Spin–orbit gravitational locking—an effective potential approach
Spin–orbit gravitational locking—an effective potential approach Open
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 aroun…
View article: A template method to measure the $t \bar t$ polarization.
A template method to measure the $t \bar t$ polarization. Open
We develop a template method for the measurement of the polarization of $t \bar t$ pairs produced in hadron collisions. The method would allow to extract the individual fractions of $t_L \bar t_L$, $t_R \bar t_R$, $t_L \bar t_R$ and $t_R \…
View article: Reconstruction of top quark pair dilepton decays in electron-positron collisions
Reconstruction of top quark pair dilepton decays in electron-positron collisions Open
A new algorithm is presented to perform the full kinematic reconstruction of
\ntop quark pair events produced at future electron-positron colliders in the
\ncase of dilepton decays of the $W$ bosons to electrons or muons. The momentum
\nco…
View article: Standard Model Physics at the HL-LHC and HE-LHC
Standard Model Physics at the HL-LHC and HE-LHC Open
The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the gian…
View article: Standard Model Physics at the HL-LHC and HE-LHC
Standard Model Physics at the HL-LHC and HE-LHC Open
The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the gian…
View article: Global constraints on top quark anomalous couplings
Global constraints on top quark anomalous couplings Open
The latest results on top quark physics, namely single top quark production\ncross sections, $W$-boson helicity and asymmetry measurements are used to probe\nthe Lorentz structure of the $Wtb$ vertex. The increase of sensitivity to new\nan…
View article: Probing the CP nature of the Higgs coupling in $t\bar{t}h$ events at the LHC
Probing the CP nature of the Higgs coupling in $t\bar{t}h$ events at the LHC Open
The determination of the CP nature of the top quark Yukawa coupling is addressed in this phenomenological work, using $t\bar{t}h$ events at the $\sqrt{s}$ = 13 TeV LHC, with $h\rightarrow b\bar b$ and through the dilepton decay channel of …
View article: The Laser calibration of the ATLAS Tile Calorimeter during the LHC run 1
The Laser calibration of the ATLAS Tile Calorimeter during the LHC run 1 Open
This article describes the Laser calibration system of the ATLAS hadronic Tile Calorimeter that has been used during the run 1 of the LHC . First, the stability of the system associated readout electronics is studied. It is found to be sta…