A5020889489- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Peacebuilding and International Security
- Literature, Culture, and Criticism
- Black Holes and Theoretical Physics
- International Development and Aid
- Cultural, Media, and Literary Studies
- Advanced Mathematical Identities
- Nonlinear Waves and Solitons
- High-Velocity Impact and Material Behavior
- Laser-Plasma Interactions and Diagnostics
- Advanced Numerical Methods in Computational Mathematics
- Nuclear Physics and Applications
- Analytic Number Theory Research
- Distributed and Parallel Computing Systems
- Particle Detector Development and Performance
- Numerical methods for differential equations
- Particle Accelerators and Free-Electron Lasers
- Adversarial Robustness in Machine Learning
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Second Language Learning and Teaching
Universidade Nova de Lisboa
2020-2023
Centro Regional de Derechos Humanos y Justicia de Género, Corporación Humanas
2021
Iscte – Instituto Universitário de Lisboa
2020
Universidade da Paz
2020
Centro de Ciencias Humanas y Sociales
2019
Universität Hamburg
2004-2011
University of Antwerp
2009
This chapter of the report "Flavor in era LHC" Workshop discusses theoretical, phenomenological and experimental issues related to flavor phenomena charged lepton sector conserving CP-violating processes. We review current limits main theoretical models for structure fundamental particles. analyze consequences available data, setting constraints on explicit beyond standard model, presenting benchmarks discovery potential forthcoming measurements both at LHC low energy, exploring options...
The description of inclusive production single unpolarized light hadrons using fragmentation functions in the framework factorization theorem is reviewed. observables into perturbatively calculable quantities and these universal are summarized some improvements beyond standard fixed order approach discussed. extraction for charged (${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${K}^{\ifmmode\pm\else\textpm\fi{}}$, $p∕\overline{p}$) neutral (${K}_{S}^{0}$...
2nd workshop on the implications of HERA for LHC physics. Working groups: Parton Density Functions Multi-jet final states and energy flows Heavy quarks (charm beauty) Diffraction Cosmic Rays Monte Carlos Tools
We present a method for calculating any (nested) harmonic sum to arbitrary accuracy all complex values of the argument. The utilizes relation between sums and (derivatives of) Hurwitz zeta functions, which allows be calculated as an expansion valid large its A program implementing this is also provided.
We define a general scheme for the evolution of fragmentation functions which resums both soft gluon logarithms and mass singularities in consistent manner to any order, requires no additional theoretical assumptions. Using double logarithmic approximation known perturbative results splitting functions, we present our with complete contribution from logarithms, being largest logarithms. show that resulting is more than modified leading logarithm even fixed order calculated only, find, after...
We present the mini-proceedings of workshop on ``Parton fragmentation in vacuum and medium'' held at European Centre for Theoretical Studies Nuclear Physics Related Areas (ECT*, Trento) February 2008. The gathered both theorists experimentalists to discuss current status investigations quark gluon into hadrons different accelerator facilities (LEP, B-factories, JLab, HERA, RHIC, Tevatron) as well preparations extension these studies LHC. main physics topics covered were: (i) light-quark...
Predictions for light charged hadron production data in the current fragmentation region of deeply inelastic scattering from H1 and ZEUS experiments are calculated using perturbative quantum chromodynamics at next-to-leading order, functions obtained by fitting to similar ${e}^{+}{e}^{\ensuremath{-}}$ reactions. General good agreement is found when magnitude ${Q}^{2}$ hard photon's virtuality sufficiently large. The discrepancy low $Q$ small scaled momentum ${x}_{p}$ reduced incorporating...
An approach valid to any order which unifies the fixed Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution of fragmentation functions at large $x$ with soft gluon logarithmic resummation small is proposed. At lowest order, this approach, implemented double approximation, reproduces exactly modified leading logarithm approximation but more complete due degrees freedom given quark sector and inclusion terms. We find that data from largest values peak region can be better fitted than other approaches.
We compare the transverse-momentum (pT) distribution of inclusive light-charged-particle production measured by CDF Collaboration at Fermilab Tevatron with theoretical prediction evaluated next-to-leading order in quantum chromodynamics using fragmentation functions recently determined through a global data fit. While lower pT range agree within error or slightly undershoot it, they significantly exceed it upper range, several orders magnitude largest values pT, potentially challenging...
The standard analytic solution to the DGLAP equation in Mellin space is improved by resumming large x divergences. Explicit results are given next-to-leading order and logarithmic accuracy. Numerically, theoretical error found be reduced resummation for a range of x.
We present and discuss constraints on supersymmetric type I seesaw models imposed by neutrino data, charged lepton flavor violation thermal leptogenesis.
We present a model independent approach to FFs, which allows determine uniquely the non-singlet combination (D_u-D_d)^{K^++K^-} of kaon independently in three different processes inclusive production: e+e- annihilation, pp-collisions and lN semi-inclusive DIS. Only C SU(2) invariances are used no assumptions on FFs PDFs, result holds any order QCD. The non-singlets obtained this way, would allow test commonly global fit analysis universality. This method is applied production data e+e-\to...
We study constraints on the supersymmetric type I seesaw model imposed by neutrino data, charged lepton flavor violation and thermal leptogenesis. It is shown that three heavy masses as well complex Yukawa coupling matrix can be constrained.
O romance plantador de abóboras, Luís Cardoso, apresenta-se como um extenso monólogo em prosa poética que a narradora e protagonista entrelaça as suas vivências com dos seus antepassados. A partir do testemunho ficcional, assiste-se à revisitação século história Timor-Leste uma textualização da mulher timorense, ambas marcadas pela violência ocupantes, resistentes daqueles exercem o poder. Ao eleger voz feminina, escritor eleva seu estatuto subalterno, tornando audível habitualmente...
The status of small x resummation in the timelike kinematics is discussed. We present a general procedure to extract large logarithms MS factorization scheme and resum them closed form. New results for doubly-logarithm-resummed coefficient functions will be reviewed. All our formulae are agrement with fixed NNLO computations recently done by other groups \bar{MS} scheme.