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学術論文

Gamma/Hadron Separation with the HAWC Observatory

MPS-Authors
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Jardin-Blicq,  A.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37725

Marandon,  V.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons242418

Olivera Nieto,  L.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons31103

Tibolla,  O.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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フルテキスト (公開)

2205.12188.pdf
(プレプリント), 3MB

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引用

Alfaro, R., Alvarez, C., Álvarez, J. D., Angeles Camacho, J. R., Arteaga-Velázquez, J. C., Avila Rojas, D., Ayala Solares, H. A., Babu, R., Belmont-Moreno, E., Brisbois, C., Caballero-Mora, K. S., Capistrán, T., Carramiñana, A., Casanova, S., Chaparro-Amaro, O., Cotti, U., Cotzomi, J., de León, S. C., De la Fuente, E., de León, C., Hernandez, R. D., Dingus, B. L., DuVernois, M. A., Durocher, M., Díaz-Vélez, J. C., Ellsworth, R. W., Engel, K., Espinoza, C., Fan, K. L., Alonso, M. F., Fraija, N., Garcia, D., García-González, J. A., Garfias, F., González, M. M., Goodman, J. A., Harding, J. P., Hernandez, S., Hona, B., Huang, D., Hueyotl-Zahuantitla, F., Hüntemeyer, P., Iriarte, A., Jardin-Blicq, A., Joshi, V., Kaufmann, S., Lara, G. J. K. A., Lee, W. H., Lee, J., Vargas, H. L., Linnemann, J. T., Luis-Raya, G., Lundeen, J., Malone, K., Marandon, V., Martinez, O., Martínez-Castro, J., Matthews, J. A., Miranda-Romagnoli, P., Morales-Soto, J. A., Nayerhoda, A., Nellen, L., Nisa, M. U., Noriega-Papaqui, R., Olivera Nieto, L., Omodei, N., Peisker, A., Araujo, Y. P., Pérez-Pérez, E. G., Rho, C. D., Rosa-González, D., Ruiz-Velasco, E., Salazar, H., Greus, F. S., Sandoval, A., Parkinson, P. M. S., Serna-Franco, J., Smith, A. J., Springer, R. W., Tibolla, O., Tollefson, K., Torres, I., Torres-Escobedo, R., Turner, R., Ureña-Mena, F., Villaseñor, L., Wang, X., Watson, I. J., Werner, F., Willox, E., Wood, J., Zepeda, A., & Zhou, H. (2022). Gamma/Hadron Separation with the HAWC Observatory. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1039:. doi:10.1016/j.nima.2022.166984.


引用: https://hdl.handle.net/21.11116/0000-000C-0091-F
要旨
The High Altitude Water Cherenkov (HAWC) gamma-ray observatory observes
atmospheric showers produced by incident gamma rays and cosmic rays with energy
from 300 GeV to more than 100 TeV. A crucial phase in analyzing gamma-ray
sources using ground-based gamma-ray detectors like HAWC is to identify the
showers produced by gamma rays or hadrons. The HAWC observatory records roughly
25,000 events per second, with hadrons representing the vast majority
($>99.9\%$) of these events. The standard gamma/hadron separation technique in
HAWC uses a simple rectangular cut involving only two parameters. This work
describes the implementation of more sophisticated gamma/hadron separation
techniques, via machine learning methods (boosted decision trees and neural
networks), and summarizes the resulting improvements in gamma/hadron separation
obtained in HAWC.