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Upturn observed in heavy nuclei to iron ratios by the ATIC-2 experiment
Adams.J.H., Ahn.H.S., Bashindzhagyan.G.L., Chang.J., Christl.M., Fazely.A.R., Guzik.T.G., Isbert.J., Kim.K.C., Kouznetsov.E.N., Panasyuk.M.I., Panov.A.D., Seo.E.S., Sokolskaya.N.V., Watts.J.W., Wefel.J.P., Wu.J., Zatsepin.V.I.
2013
Source Publication23rd European Cosmic Ray Symposium, ECRS 2012 and 32nd Russian Cosmic Ray Conference, July 3, 2012 - July 7, 2012
ISSN1742-6588
Volume56Pages:284-289
AbstractThe ratios of fluxes of heavy nuclei from sulfur (Z=16) to chromium (Z=24) to the flux of iron were measured by the ATIC-2 experiment. The ratios are decreasing functions of energy from 5 GeV/n to approximately 80 GeV/n, as expected. However, an unexpected sharp upturn in the ratios are observed for energies above 100 GeV/n for all elements from Z=16 to Z=24. Similar upturn but with lower amplitude was also discovered in the ATIC-2 data for the ratio of fluxes of abundant even nuclei (C, O, Ne, Mg, Si) to the flux of iron. Therefore the spectrum of iron is significantly different from the spectra of other abundant even nuclei.
Subject AreaPhysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9762
Collection暗物质和空间天文实验室
Recommended Citation
GB/T 7714
Adams.J.H., Ahn.H.S., Bashindzhagyan.G.L., Chang.J., Christl.M., Fazely.A.R., Guzik.T.G., Isbert.J., Kim.K.C., Kouznetsov.E.N., Panasyuk.M.I., Panov.A.D., Seo.E.S., Sokolskaya.N.V., Watts.J.W., Wefel.J.P., Wu.J., Zatsepin.V.I.. Upturn observed in heavy nuclei to iron ratios by the ATIC-2 experiment[J]. 23rd European Cosmic Ray Symposium, ECRS 2012 and 32nd Russian Cosmic Ray Conference, July 3, 2012 - July 7, 2012,2013,56:284-289.
APA Adams.J.H., Ahn.H.S., Bashindzhagyan.G.L., Chang.J., Christl.M., Fazely.A.R., Guzik.T.G., Isbert.J., Kim.K.C., Kouznetsov.E.N., Panasyuk.M.I., Panov.A.D., Seo.E.S., Sokolskaya.N.V., Watts.J.W., Wefel.J.P., Wu.J., Zatsepin.V.I..(2013).Upturn observed in heavy nuclei to iron ratios by the ATIC-2 experiment.23rd European Cosmic Ray Symposium, ECRS 2012 and 32nd Russian Cosmic Ray Conference, July 3, 2012 - July 7, 2012,56,284-289.
MLA Adams.J.H., Ahn.H.S., Bashindzhagyan.G.L., Chang.J., Christl.M., Fazely.A.R., Guzik.T.G., Isbert.J., Kim.K.C., Kouznetsov.E.N., Panasyuk.M.I., Panov.A.D., Seo.E.S., Sokolskaya.N.V., Watts.J.W., Wefel.J.P., Wu.J., Zatsepin.V.I.."Upturn observed in heavy nuclei to iron ratios by the ATIC-2 experiment".23rd European Cosmic Ray Symposium, ECRS 2012 and 32nd Russian Cosmic Ray Conference, July 3, 2012 - July 7, 2012 56(2013):284-289.
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