7 results on '"Everson, E."'
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2. Searching for cosmic antihelium nuclei with the GAPS experiment
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Stoessl, A., Aramaki, T., Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kobayashi, S., Kozai, M., Lenni, A., Lowell, A., Manghisoni, Massimo, Marcelli, N., Mognet, S. A. I., Munakata, K., Munini, R., Nakagami, Y., Olson, J., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Re, Valerio, Riceputi, Elisa, Roach, B., Rogers, F., Ryan, J. A., Saffold, N., Scotti, V., Shimizu, Y., Sonzogni, M., Sparvoli, R., Tiberio, A., Vannuccini, E., von Doetinchem, P., Wada, T., Xiao, M., Yamatami, M., Yoshida, A., Yoshida, T., Zampa, G., Zweerink, J., Aramaki, T., Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kobayashi, S., Kozai, M., Lenni, A., Lowell, A., Manghisoni, M., Marcelli, N., Mochizuki, B., Mognet, S. A. I., Munakata, K., Munini, R., Nakagami, Y., Olson, J., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Re, V., Riceputi, E., Roach, B., Rogers, F., Ryan, J. A., Saffold, N., Scotti, V., Shimizu, Y., Sonzogni, M., Sparvoli, R., Stoessl, A., Tiberio, A., Vannuccini, E., von Doetinchem, P., Wada, T., Xiao, M., Yamatani, M., Yoshida, A., Yoshida, T., Zampa, G., and Zweerink, J.
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Astroparticle Physics ,cosmic rays ,Readout electronics ,Dark matter ,Detectors ,GAPS ,cosmic antihelium ,Settore ING-INF/01 - Elettronica ,cosmic ray - Abstract
At low energies, cosmic antideuterons and antihelium provide an ultra-low background signature of dark matter annihilation, decay, and other beyond the Standard Model phenomena. The General Antiparticle Spectrometer (GAPS) is an Antarctic balloon experiment designed to search for lowenergy (0.1−0.3 GeV/n) antinuclei, and is planned to launch in the austral summer of 2022. While optimized for an antideuteron search, GAPS also has unprecedented capabilites for the detection of low-energy antihelium nuclei, utilizing a novel detection technique based on the formation, decay, and annihilation of exotic atoms. The AMS-02 collaboration has recently reported several antihelium nuclei candidate events, which sets GAPS in a unique position to set constraints on the cosmic antihelium flux in an energy region which is essentially free of astrophysical background. In this contribution, we illustrate the capabilities of GAPS to search for cosmic antihelium-3 utilizing complete instrument simulations, event reconstruction, and the inclusion of atmospheric effects. We show that GAPS is capable of setting unprecedented limits on the cosmic antihelium flux, opening a new window on exotic cosmic physics.
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- 2021
3. Sensitivity of the GAPS experiment to low-energy cosmic-ray antiprotons.
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Rogers, F., Aramaki, T., Boezio, M., Boggs, S.E., Bonvicini, V., Bridges, G., Campana, D., Craig, W.W., von Doetinchem, P., Everson, E., Fabris, L., Feldman, S., Fuke, H., Gahbauer, F., Gerrity, C., Hailey, C.J., Hayashi, T., Kawachi, A., Kozai, M., and Lenni, A.
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ANTIPROTONS , *COSMIC rays , *BLACK holes , *MAGNETIC spectrometer , *DARK matter , *KINETIC energy , *ANTIPARTICLES - Abstract
The General Antiparticle Spectrometer (GAPS) is an upcoming balloon mission to measure low-energy cosmic-ray antinuclei during at least three ∼ 35-day Antarctic flights. With its large geometric acceptance and novel exotic atom-based particle identification, GAPS will detect ∼ 500 cosmic antiprotons per flight and produce a precision cosmic antiproton spectrum in the kinetic energy range of ∼ 0. 07 − 0. 21 GeV/ n at the top of the atmosphere. With these high statistics extending to lower energies than any previous experiment, and with complementary sources of experimental uncertainty compared to traditional magnetic spectrometers, the GAPS antiproton measurement will be sensitive to dark matter, primordial black holes, and cosmic ray propagation. The antiproton measurement will also validate the GAPS antinucleus identification technique for the antideuteron and antihelium rare-event searches. This analysis demonstrates the GAPS sensitivity to cosmic-ray antiprotons using a full instrument simulation and event reconstruction, and including solar and atmospheric effects. [ABSTRACT FROM AUTHOR]
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- 2023
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4. The GAPS Instrument: A Large Area Time of Flight and High Resolution Exotic Atom Spectrometer for Cosmic Antinuclei
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T. Aramaki, R. Bird, M. Boezio, S. E. Boggs, V. Bonvicini, D. Campana, W. W. Craig, E. Everson, L. Fabris, H. Fuke, F. Gahbauer, I. Garcia, C. Gerrity, C. J. Hailey, T. Hayashi, C. Kato, A. Kawachi, S. Kobayashi, M. Kozai, A. Lenni, A. Lowell, M. Manghisoni, N. Marcelli, B. Mochizuki, S. A. I. Mognet, K. Munakata, R. Munini, Y. Nakagami, J. Olson, R. A. Ong, G. Osteria, K. Perez, S. Quinn, V. Re, E. Riceputi, B. Roach, F. Rogers, J. A. Ryan, N. Saffold, V. Scotti, Y. Shimizu, M. Sonzogni, R. Sparvoli, A. Stoessl, A. Tiberio, E. Vannuccini, P. von Doetinchem, T. Wada, M. Xiao, M. Yamatani, A. Yoshida, T. Yoshida, G. Zampa, J. Zweerink, Aramaki, T., Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kobayashi, S., Kozai, M., Lenni, A., Lowell, A., Manghisoni, M., Marcelli, N., Mochizuki, B., Mognet, S. A. I., Munakata, K., Munini, R., Nakagami, Y., Olson, J., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Re, V., Riceputi, E., Roach, B., Rogers, F., Ryan, J. A., Saffold, N., Scotti, V., Shimizu, Y., Sonzogni, M., Sparvoli, R., Stoessl, A., Tiberio, A., Vannuccini, E., von Doetinchem, P., Wada, T., Xiao, M., Yamatani, M., Yoshida, A., Yoshida, T., Zampa, G., and Zweerink, J.
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Physics ,Antiparticle ,COSMIC cancer database ,Spectrometer ,Dark matter ,GAPS ,large-area Time-of-Flight, high-resolution exotic-atom spectrometer ,cosmic-ray antinuclei ,Cosmic ray ,Scintillator ,Nuclear physics ,Antiproton ,high-resolution exotic-atom spectrometer ,large-area Time-of-Flight ,Exotic atom - Abstract
Low-energy cosmic ray antideuterons ($
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- 2022
5. Cosmic Antiproton Sensitivity for the GAPS Experiment
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Field Rogers, T Aramaki, R Bird, T. Aramaki, R. Bird, M. Boezio, S. E. Boggs, V. Bonvicini, D. Campana, W. W. Craig, E. Everson, L. Fabris, H. Fuke, F. Gahbauer, I. Garcia, C. Gerrity, C. J. Hailey, T. Hayashi, C. Kato, A. Kawachi, S. Kobayashi, M. Kozai, A. Lenni, A. Lowell, M. Manghisoni, N. Marcelli, B. Mochizuki, S. A. I. Mognet, K. Munakata, R. Munini, Y. Nakagami, J. Olson, R. A. Ong, G. Osteria, K. Perez, S. Quinn, V. Re, E. Riceputi, B. Roach, J. A. Ryan, N. Saffold, V. Scotti, Y. Shimizu, M. Sonzogni, R. Sparvoli, A. Stoessl, A. Tiberio, E. Vannuccini, P. von Doetinchem, T. Wada, M. Xiao, M. Yamatani, A. Yoshida, T. Yoshida, G. Zampa, J. Zweerink, Aramaki, T., Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kobayashi, S., Kozai, M., Lenni, A., Lowell, A., Manghisoni, M., Marcelli, N., Mochizuki, B., Mognet, S. A. I., Munakata, K., Munini, R., Nakagami, Y., Olson, J., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Re, V., Riceputi, E., Roach, B., Rogers, F., Ryan, J. A., Saffold, N., Scotti, V., Shimizu, Y., Sonzogni, M., Sparvoli, R., Stoessl, A., Tiberio, A., Vannuccini, E., von Doetinchem, P., Wada, T., Xiao, M., Yamatani, M., Yoshida, A., Yoshida, T., Zampa, G., and Zweerink, J.
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Physics ,Antiparticle ,COSMIC cancer database ,Spectrometer ,Dark matter ,Cosmic ray ,Particle identification ,Nuclear physics ,cosmic rays ,Antiproton ,GAPS ,antiproton sensitivity ,Nuclear Experiment ,cosmic ray ,Exotic atom - Abstract
The General Antiparticle Spectrometer (GAPS) experiment is a balloon payload designed to measure low-energy cosmic antinuclei during at least three $\sim$35-day Antarctic flights, with the first flight planned for December, 2022. With its large geometric acceptance and novel exotic atom-based particle identification method, GAPS will detect $\sim$1000 antiprotons per flight, producing a precision cosmic antiproton spectrum in the kinetic energy range of $0.03 - 0.23$ GeV/$n$ at float altitude (corresponding to $0.085- 0.30$ GeV/$n$ at the top of the atmosphere). With these high statistics in a measurement extending to lower energy than any previous experiment, and with orthogonal sources of systematic uncertainty compared to measurements made using traditional magnetic spectrometer techniques, the GAPS antiproton measurement will be sensitive to physics including dark matter annihilation, primordial black hole evaporation, and cosmic ray propagation. The antiproton measurement will also validate the GAPS exotic atom technique for the antideuteron and antihelium rare-event searches and provide insight into models of cosmic particle attenuation and production in the atmosphere. This contribution demonstrates the GAPS sensitivity to antiprotons using a full instrument simulation, event reconstruction, and solar and atmospheric effects.
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- 2021
6. In Search of Cosmic-Ray Antinuclei from Dark Matter with the GAPS Experiment
- Author
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T. Aramaki, R. Bird, M. Boezio, S. E. Boggs, V. Bonvicini, D. Campana, W. W. Craig, E. Everson, L. Fabris, H. Fuke, F. Gahbauer, I. Garcia, C. Gerrity, C. J. Hailey, T. Hayashi, C. Kato, A. Kawachi, S. Kobayashi, M. Kozai, A. Lenni, A. Lowell, M. Manghisoni, N. Marcelli, B. Mochizuki, S. A. I. Mognet, K. Munakata, R. Munini, Y. Nakagami, J. Olson, R. A. Ong, G. Osteria, K. Perez, S. Quinn, V. Re, E. Riceputi, B. Roach, F. Rogers, J. A. Ryan, N. Saffold, V. Scotti, Y. Shimizu, M. Sonzogni, R. Sparvoli, A. Stoessl, A. Tiberio, E. Vannuccini, P. von Doetinchem, T. Wada, M. Xiao, M. Yamatani, A. Yoshida, T. Yoshida, G. Zampa, J. Zweerink, Aramaki, T., Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kobayashi, S., Kozai, M., Lenni, A., Lowell, A., Manghisoni, M., Marcelli, N., Mochizuki, B., Mognet, S. A. I., Munakata, K., Munini, R., Nakagami, Y., Olson, J., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Re, V., Riceputi, E., Roach, B., Rogers, F., Ryan, J. A., Saffold, N., Scotti, V., Shimizu, Y., Sonzogni, M., Sparvoli, R., Stoessl, A., Tiberio, A., Vannuccini, E., von Doetinchem, P., Wada, T., Xiao, M., Yamatani, M., Yoshida, A., Yoshida, T., Zampa, G., and Zweerink, J.
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Physics ,GAPS ,cosmic-ray antinuclei ,dark-matter search ,Dark matter ,Cosmic ray ,Astrophysics - Abstract
The General Antiparticle Spectrometer (GAPS) is the first experiment optimized to identify low energy (
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- 2021
7. Cosmic antihelium-3 nuclei sensitivity of the GAPS experiment.
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Saffold, N., Aramaki, T., Bird, R., Boezio, M., Boggs, S.E., Bonvicini, V., Campana, D., Craig, W.W., von Doetinchem, P., Everson, E., Fabris, L., Fuke, H., Gahbauer, F., Garcia, I., Gerrity, C., Hailey, C.J., Hayashi, T., Kato, C., Kawachi, A., and Kobayashi, S.
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MAGNETIC spectrometer , *EXOTIC atoms , *STANDARD model (Nuclear physics) , *DARK matter , *ANTIPARTICLES , *COSMIC background radiation - Abstract
The General Antiparticle Spectrometer (GAPS) is an Antarctic balloon experiment designed for low-energy (0.1–0.3 GeV/ n) cosmic antinuclei as signatures of dark matter annihilation or decay. GAPS is optimized to detect low-energy antideuterons, as well as to provide unprecedented sensitivity to low-energy antiprotons and antihelium nuclei. The novel GAPS antiparticle detection technique, based on the formation, decay, and annihilation of exotic atoms, provides greater identification power for these low-energy antinuclei than previous magnetic spectrometer experiments. This work reports the sensitivity of GAPS to detect antihelium-3 nuclei, based on full instrument simulation, event reconstruction, and realistic atmospheric influence simulations. The report of antihelium nuclei candidate events by AMS-02 has generated considerable interest in antihelium nuclei as probes of dark matter and other beyond the Standard Model theories. GAPS is in a unique position to detect or set upper limits on the cosmic antihelium nuclei flux in an energy range that is essentially free of astrophysical background. In three 35-day long-duration balloon flights, GAPS will be sensitive to an antihelium flux on the level of 1. 3 − 1.2 + 4.5 · 10 − 6 m-2sr-1s-1(GeV/ n)-1 (95% confidence level) in the energy range of 0.11–0.3 GeV/ n , opening a new window on rare cosmic physics. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
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