Zobrazeno 1 - 10 of 43 pro vyhledávání: '"João C. A. Barata"'
1
Simple implementation of color coherence for the resumation of soft BDMPS-Z gluons
Autor: João C. A. Barata, Carlos A. Salgado, Victor Vila, Fabio Dominguez
Publikováno v: Proceedings of 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions — PoS(HardProbes2020).
The evolution of QCD jets under the influence of a dense colored medium leads to the non trivial modification of the gluon emission spectrum. In the multiple soft scattering regime, for sufficiently large media, soft and wide angle emissions can be r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13c760e3cd1056f72f580eecb0bedec1
https://doi.org/10.22323/1.387.0130
Zobrazit plný text záznamu
2
Medium-induced radiative kernel with the Improved Opacity Expansion
Autor: João C. A. Barata, Konrad Tywoniuk, Yacine Mehtar-Tani, Alba Soto-Ontoso
Publikováno v: Journal of High Energy Physics
Journal of High Energy Physics, 2021, 09, pp.153. ⟨10.1007/JHEP09(2021)153⟩
JHEP
JHEP, 2021, 09, pp.153. ⟨10.1007/JHEP09(2021)153⟩
Journal of High Energy Physics (JHEP)
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-53 (2021)
We calculate the fully differential medium-induced radiative spectrum at next-to-leading order (NLO) accuracy within the Improved Opacity Expansion (IOE) framework. This scheme allows us to gain analytical control of the radiative spectrum at low and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff581578e152e847bc52efe99bc4d15e
http://arxiv.org/abs/2106.07402
Zobrazit plný text záznamu
3
Elektronická kniha
The P(φ) 2 Model on de Sitter Space
Autor: João C. A. Barata, Christian D. Jäkel, Jens Mund
View the abstract.
Zobrazit plný text záznamu
4
On the breaking of Casimir scaling in jet quenching
Autor: Guilherme Milhano, Liliana Apolinário, João C. A. Barata
Publikováno v: European Physical Journal
The European Physical Journal C
European Physical Journal C: Particles and Fields, Vol 80, Iss 6, Pp 1-8 (2020)
We study the breaking of Casimir scaling, $C_F/C_A$, due to the evolution of jets in a hot and extended medium. By using JEWEL, a medium modified Monte Carlo event generator validated for a wide set of observables, we are able to study separately the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b91491a981bd8761b28afd2a71e05cc
Zobrazit plný text záznamu
5
Pure and mixed states
Autor: Marcos Brum, V. Chabu, João C. A. Barata, R. Correa da Silva
We present a review on the notion of pure states and mixtures as mathematical concepts that apply for both classical and quantum physical theories, as well as for any other theory depending on statistical description. Here, states will be presented a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::795550f0d8bf39b6da662ce1284e1fef
http://arxiv.org/abs/1909.06232
Zobrazit plný text záznamu
6
Phase factors of periodically driven two-level systems
Autor: João C. A. Barata, Marcela Muniz Gontijo
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Using a perturbative solution for a periodically driven two-level quantum system, we show how to obtain phase factors for both a two-level quantum system and two two-level quantum systems non-interacting and interacting. The method is easily implemen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e4205373a1049de03d93c4484d098e6
http://arxiv.org/abs/1808.08324
Zobrazit plný text záznamu
7
Wavepackets on de Sitter spacetime
Autor: Marcos Brum, João C. A. Barata
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
We construct wavepackets on de Sitter spacetime, with masses consistently defined from the eigenvalues of an irreducible representation of a Casimir element in the universal enveloping algebra of the Lorentz algebra and analyse their asymptotic behav
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46767ae79cf5f287c1071aec080bba93
http://arxiv.org/abs/1708.00538
Zobrazit plný text záznamu
9
The Moore–Penrose Pseudoinverse: A Tutorial Review of the Theory
Autor: Mahir S. Hussein, João C. A. Barata
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
In the last decades the Moore-Penrose pseudoinverse has found a wide range of applications in many areas of Science and became a useful tool for physicists dealing, for instance, with optimization problems, with data analysis, with the solution of li
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37fbfd17ccde1fd0faf039d080745e00
https://doi.org/10.1007/s13538-011-0052-z
Zobrazit plný text záznamu
10
New Asymptotic Formulae for the Point Coulomb Phase Shift
Autor: João C. A. Barata, L. F. Canto, Mahir S. Hussein
Publikováno v: Brazilian Journal of Physics. 41:50-58
We investigate the Coulomb phase shift, and derive and analyze new and more precise analytical formulae. We consider next to leading order terms to the Stirling’s approximation, and show that they are important at small values of the angular moment
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa564e44710e667bcbba14b6547a5a26
https://doi.org/10.1007/s13538-011-0005-6
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje