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New Measurement of the Antiproton-to-Proton Flux Ratio up to 100 GeV in the Cosmic Radiation
Open accessAbstract
A new measurement of the cosmic-ray antiproton-to-proton flux ratio between 1 and 100 GeV is presented. The results were obtained with the PAMELA experiment, which was launched into low-Earth orbit on-board the Resurs-DK1 satellite on June 15th 2006. During 500 days of data collection a total of about 1000 antiprotons have been identified, including 100 above an energy of 20 GeV. The high-energy results are a tenfold improvement in statistics with respect to all previously published data. The data follow the trend expected from secondary production calculations and significantly constrain contributions from exotic sources, e.g., dark matter particle annihilations.
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Cites
HAWKING, S. W. (1974) · Nature · doi:10.1038/248030a0 · Cited by 5,669
Particle dark matter: evidence, candidates and constraints
Bertone, G., Hooper, D., & Silk, J. (2005) · Physics Reports · doi:10.1016/j.physrep.2004.08.031 · Cited by 4,979
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The Next-to-Minimal Supersymmetric Standard Model
Ellwanger, U., Hugonie, C., & Teixeira, A. M. (2010) · Physics Reports · doi:10.1016/j.physrep.2010.07.001 · Cited by 992
PAMELA Measurements of Cosmic-Ray Proton and Helium Spectra
Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., et al. (2011) · Science · doi:10.1126/science.1199172 · Cited by 894
Self-citationMeasuring a Long-Range Dark Matter Force at the Large Hadron Collider
Bai, Y., & Han, Z. (2009) · Physical Review Letters · doi:10.1103/physrevlett.103.051801 · Cited by 42
Radiation Measurements Performed with Active Detectors Relevant for Human Space Exploration
Narici, L., Berger, T., Matthiä, D., & Reitz, G. (2015) · Frontiers in Oncology · doi:10.3389/fonc.2015.00273 · Cited by 35
Metadata
- Authors
- Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Pascale, M. P., De Rosa, G., Fedele, D., Galper, A. M., Grishantseva, L., Hofverberg, P., Leonov, A., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Minori, M., Mocchiutti, E., Nagni, M., Orsi, S., Osteria, G., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Taddei, E., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., & Zverev, V. G.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-02-02
- Volume
- 102
- Issue
- 5
- Pages
- 051101-051101
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2108075399
- Cited by
- 540
- References
- 2
- FWCI
- 67.74
- Type
- journal article
- Language
- en
- Open access
- green
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- Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Pascale, M. P., De Rosa, G., Fedele, D., . . . Zverev, V. G. (2009). New Measurement of the Antiproton-to-Proton Flux Ratio up to 100 GeV in the Cosmic Radiation. Physical Review Letters. https://doi.org/10.1103/physrevlett.102.051101
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
