7 results on '"Gahbauer, F."'
Search Results
2. Antideuterons as an indirect dark matter signature: Si(Li) detector development and a GAPS balloon mission
- Author
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Aramaki, T., Boggs, S.E., Craig, W.W., Gahbauer, F., Hailey, C. J., Koglin, J. E., Madden, N., Mori, K., Ong, R. A., Fuke, Hideyuki, and Yoshida, Tetsuya
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Physics ,Atmospheric Science ,Particle physics ,Antiparticle ,COSMIC cancer database ,Annihilation ,Spectrometer ,Dark matter ,Aerospace Engineering ,Astronomy and Astrophysics ,Nuclear physics ,Geophysics ,Pion ,Space and Planetary Science ,Excited state ,General Earth and Planetary Sciences ,Exotic atom - Abstract
著者人数:11名, Accepted: 2010-06-22, 資料番号: SA1002577000
- Published
- 2010
3. The GAPS Instrument: A Large Area Time of Flight and High Resolution Exotic Atom Spectrometer for Cosmic Antinuclei
- 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 ,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 ($
- Published
- 2022
4. Cosmic Antiproton Sensitivity for the GAPS Experiment
- Author
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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.
- Published
- 2021
5. A measurement of atomic X-ray yields in exotic atoms and implications for an antideuteron-based dark matter search.
- Author
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Aramaki, T., Chan, S.K., Craig, W.W., Fabris, L., Gahbauer, F., Hailey, C.J., Koglin, J.E., Madden, N., Mori, K., Yu, H.T., and Ziock, K.P.
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X-rays , *EXOTIC atoms , *DEUTERONS , *DARK matter , *METAPHYSICAL cosmology , *HADRONS - Abstract
Abstract: The General AntiParticle Spectrometer (GAPS) is a novel approach for the indirect dark matter search that exploits cosmic antideuterons. GAPS utilizes a distinctive detection method using atomic X-rays and charged particles from the exotic atom as well as the timing, stopping range and dE/dX energy deposit of the incoming particle, which provides excellent antideuteron identification. In anticipation of a future balloon experiment, an accelerator test was conducted in 2004 and 2005 at KEK, Japan, in order to prove the concept and to precisely measure the X-ray yields of antiprotonic exotic atoms formed with different target materials [1]. The X-ray yields of the exotic atoms with Al and S targets were obtained as 75%, which are higher than were previously assumed in [2]. A simple, but comprehensive cascade model has been developed not only to evaluate the measurement results but also to predict the X-ray yields of the exotic atoms formed with any materials in the GAPS instrument. The cascade model is extendable to any kind of exotic atom (any negatively charged cascading particles with any target materials), and it was compared and validated with other experimental data and cascade models for muonic and antiprotonic exotic atoms. The X-ray yields of the antideuteronic exotic atoms are predicted with a simple cascade model and the sensitivity for the GAPS antideuteron search was estimated for the proposed long duration balloon program [3], which suggests that GAPS has a strong potential to detect antideuterons as a dark matter signature. A GAPS prototype flight (pGAPS) was launched successfully from the JAXA/ISAS balloon facility in Hokkaido, Japan in summer 2012 [4,5] and a proposed GAPS science flight is to fly from Antarctica in the austral summer of 2017–2018. [Copyright &y& Elsevier]
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- 2013
- Full Text
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6. Current status and future plans for the general antiparticle spectrometer (GAPS)
- Author
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Fuke, H., Koglin, J.E., Yoshida, T., Aramaki, T., Craig, W.W., Fabris, L., Gahbauer, F., Hailey, C.J., Jou, F.J., Madden, N., Mori, K., Yu, H.T., and Ziock, K.P.
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ASTRONOMY , *INTERSTELLAR medium , *EXOTIC atoms , *DARK matter - Abstract
Abstract: We discuss current progress and future plans for the general antiparticle spectrometer experiment (GAPS). GAPS detects antideuterons through the X-rays and pions emitted during the deexcitation of exotic atoms formed when the antideuterons are slowed down and stopped in targets. GAPS provides an exceptionally sensitive means to detect cosmic-ray antideuterons. Cosmic-ray antideuterons can provide indirect evidence for the existence of dark matter in such form as neutralinos or Kaluza–Klein particles. We describe results of accelerator testing of GAPS prototypes, tentative design concepts for a flight GAPS detector, and near-term plans for flying a GAPS prototype on a balloon. [Copyright &y& Elsevier]
- Published
- 2008
- Full Text
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7. Cosmic antihelium-3 nuclei sensitivity of the GAPS experiment.
- Author
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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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