Zobrazeno 1 - 10
of 14 935
pro vyhledávání: '"Oliveira, R."'
Autor:
Oliveira, R. R. S.
Publikováno v:
Phys. Lett. B 856 (2024) 138888
In this comment, we point out a series of errors made by Senjaya in your paper (2024) \cite{Senjaya}. In particular, these errors involved the Dirac equation in the 3+1 dimensional Schwarzschild spacetime, tetrad field, curved gamma matrices, and the
Externí odkaz:
http://arxiv.org/abs/2407.18790
Autor:
Souza, S. O., Libralato, M., Nardiello, D., Kerber, L. O., Ortolani, S., Pérez-Villegas, A., Oliveira, R. A. P., Barbuy, B., Bica, E., Griggio, M., Dias, B.
NGC~6558 is a low-galactic latitude globular cluster projected in the direction of the Galactic bulge. Due to high reddening, this region presents challenges in deriving accurate parameters, which require meticulous photometric analysis. We present a
Externí odkaz:
http://arxiv.org/abs/2407.15918
Autor:
Lisowska, M., Aleksan, R., Angelis, Y., Aune, S., Bortfeldt, J., Brunbauer, F., Brunoldi, M., Chatzianagnostou, E., Datta, J., Dehmelt, K., Fanourakis, G., Ferry, S., Fiorina, D., Floethner, K. J., Gallinaro, M., Garcia, F., Giomataris, I., Gnanvo, K., Iguaz, F. J., Janssens, D., Kallitsopoulou, A., Kovacic, M., Kross, B., Lai, C. C., Legou, P., Liu, J., Lupberger, M., Maniatis, I., McKisson, J., Meng, Y., Muller, H., De Oliveira, R., Oliveri, E., Orlandini, G., Pandey, A., Papaevangelou, T., Pomorski, M., Robert, M., Ropelewski, L., Sampsonidis, D., Scharenberg, L., Schneider, T., Scorsone, E., Sohl, L., van Stenis, M., Tsipolitis, Y., Tzamarias, S., Utrobicic, A., Vai, I., Veenhof, R., Viezzi, L., Vitulo, P., Volpato, C., Wang, X., White, S., Xi, W., Zhang, Z., Zhou, Y.
The PICOSEC Micromegas detector is a precise-timing gaseous detector based on a Cherenkov radiator coupled with a semi-transparent photocathode and a Micromegas amplifying structure, targeting a time resolution of tens of picoseconds for minimum ioni
Externí odkaz:
http://arxiv.org/abs/2407.09953
Autor:
Oliveira, R. R. S.
In this comment, we showed that the line element ("metric'') worked by Jusufi (Eur. Phys. J. C 76: 332, 2016) is incorrect since he worked with a spinning cosmic string with torsion in $(2+1)$-dimensions (and in polar coordinates), which cannot happe
Externí odkaz:
http://arxiv.org/abs/2406.19658
Autor:
Oliveira, R. R. S.
In this paper, we determine the bound-state solutions for Dirac fermions with electric dipole moment (EDM) and position-dependent mass (PDM) in the presence of a radial magnetic field generated by magnetic monopoles. To achieve this, we work with the
Externí odkaz:
http://arxiv.org/abs/2405.16300
Autor:
Oliveira, R. R. S.
In this paper, we study the relativistic energy spectrum for Dirac fermions under rainbow gravity effects in the $(3+1)$-dimensional Bonnor-Melvin-Lambda spacetime, where we work with the curved Dirac equation in cylindrical coordinates. Using the te
Externí odkaz:
http://arxiv.org/abs/2405.12449
Autor:
Oliveira, R. R. S.
Publikováno v:
Class. Quantum Grav. 41, 175017 (2024)
In this paper, we determine the relativistic and nonrelativistic energy levels for Dirac fermions in a spinning conical G\"odel-type spacetime in $(2+1)$-dimensions, where we work with the curved Dirac equation in polar coordinates and we use the tet
Externí odkaz:
http://arxiv.org/abs/2405.11334
The number of known globular clusters in the Galactic bulge has been increasing steadily thanks to different new surveys. The aim of this study is to provide a census of the newly revealed globular clusters in the Galactic bulge, and analyze their ch
Externí odkaz:
http://arxiv.org/abs/2405.03068
Autor:
Pessi, P. J., Durgesh, R., Nakazono, L., Hayes, E. E., Oliveira, R. A. P., Ishida, E. E. O., Moitinho, A., Krone-Martins, A., Moews, B., de Souza, R. S., Beck, R., Kuhn, M. A., Nowak, K., Vaughan, S.
Context. Transient astronomical events that exhibit no discernible association with a host galaxy are commonly referred to as hostless. These rare phenomena are associated with extremely energetic events, and they can offer unique insights into the p
Externí odkaz:
http://arxiv.org/abs/2404.18165
Autor:
Oliveira, R. M., de Lamare, R. C.
In this paper, we present an adaptive reweighted sparse belief propagation (AR-SBP) decoder for polar codes. The AR-SBP technique is inspired by decoders that employ the sum-product algorithm for low-density parity-check codes. In particular, the AR-
Externí odkaz:
http://arxiv.org/abs/2404.04674