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  Gamma/Hadron Separation with the HAWC Observatory

Alfaro, R., Alvarez, C., Álvarez, J. D., Angeles Camacho, J. R., Arteaga-Velázquez, J. C., Avila Rojas, D., et al. (2022). Gamma/Hadron Separation with the HAWC Observatory. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1039: 166984. doi:10.1016/j.nima.2022.166984.

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Alfaro, R., Author
Alvarez, C., Author
Álvarez, J. D., Author
Angeles Camacho, J. R. , Author
Arteaga-Velázquez, J. C., Author
Avila Rojas, D. , Author
Ayala Solares, H. A. , Author
Babu, R., Author
Belmont-Moreno, E., Author
Brisbois, C., Author
Caballero-Mora, K. S., Author
Capistrán, T., Author
Carramiñana, A., Author
Casanova, S., Author
Chaparro-Amaro, O., Author
Cotti, U., Author
Cotzomi, J., Author
de León, S. Coutiño, Author
De la Fuente, E., Author
de León, C., Author
Hernandez, R. Diaz, AuthorDingus, B. L., AuthorDuVernois, M. A., AuthorDurocher, M., AuthorDíaz-Vélez, J. C., AuthorEllsworth, R. W., AuthorEngel, K., AuthorEspinoza, C., AuthorFan, K. L., AuthorAlonso, M. Fernández, AuthorFraija, N., AuthorGarcia, D., AuthorGarcía-González, J. A., AuthorGarfias, F., AuthorGonzález, M. M., AuthorGoodman, J. A., AuthorHarding, J. P., AuthorHernandez, S., AuthorHona, B., AuthorHuang, D., AuthorHueyotl-Zahuantitla, F., AuthorHüntemeyer, P., AuthorIriarte, A., AuthorJardin-Blicq, A.1, Author           Joshi, V., AuthorKaufmann, S., AuthorLara, G. J. Kundem A., AuthorLee, W. H., AuthorLee, J., AuthorVargas, H. León, AuthorLinnemann, J. T., AuthorLuis-Raya, G., AuthorLundeen, J., AuthorMalone, K., AuthorMarandon, V.1, Author           Martinez, O., AuthorMartínez-Castro, J., AuthorMatthews, J. A., AuthorMiranda-Romagnoli, P., AuthorMorales-Soto, J. A., AuthorNayerhoda, A., AuthorNellen, L., AuthorNisa, M. U., AuthorNoriega-Papaqui, R., AuthorOlivera Nieto, L.1, Author           Omodei, N., AuthorPeisker, A., AuthorAraujo, Y. Pérez, AuthorPérez-Pérez, E. G., AuthorRho, C. D., AuthorRosa-González, D., AuthorRuiz-Velasco, E., AuthorSalazar, H., AuthorGreus, F. Salesa, AuthorSandoval, A., AuthorParkinson, P. M. Saz, AuthorSerna-Franco, J., AuthorSmith, A. J., AuthorSpringer, R. W., AuthorTibolla, O.2, Author           Tollefson, K., AuthorTorres, I., AuthorTorres-Escobedo, R., AuthorTurner, R., AuthorUreña-Mena, F., AuthorVillaseñor, L., AuthorWang, X., AuthorWatson, I. J., AuthorWerner, F., AuthorWillox, E., AuthorWood, J., AuthorZepeda, A., AuthorZhou, H., Author more..
Affiliations:
1Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society, ou_2074298              
2Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,High Energy Physics - Experiment, hep-ex, Physics, Instrumentation and Detectors, physics.ins-det
 MPINP: HAWC - Abteilung Hinton
 Abstract: 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.

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 Dates: 2022-11
 Publication Status: Published online
 Pages: 35 pages, 9 figures, published in Nuclear Instruments and Methods in Physics Research Section A
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2205.12188
DOI: 10.1016/j.nima.2022.166984
 Degree: -

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Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 1039 Sequence Number: 166984 Start / End Page: - Identifier: ISSN: 0168-9002
CoNE: https://pure.mpg.de/cone/journals/resource/954925485716