Results 41 to 50 of about 2,991,307 (240)

Secondary Antiprotons in Cosmic Rays

, 2001
High energy collisions of cosmic ray (CR) nuclei with interstellar gas are believed to be the mechanism producing the majority of CR antiprotons. The distinguishing spectral shape with a maximum at 2 GeV and a sharp decrease towards lower energies makes antiprotons a unique probe of the models of particle propagation in the Galaxy and modulation in the
Moskalenko, I. V., Strong, A. W., Ormes, J. F., Potgieter, M. S., Langner, U. W.   +4 more
openaire   +2 more sources

Secondary Radiation Produced by Cosmic Rays [PDF]

Nature, 1932
ON August 12, the date on which Regener obtained his very high-altitude cosmic ray data, using self-recording apparatus carried by a balloon,1 measurements were made on a mountain-top in the Himalaya at an altitude of about 19,500 ft. The results of these measurements indicate clearly that the ionisation of gas in an ionisation chamber is due at least ...
openaire   +1 more source

Precision Measurement of Cosmic-Ray Nitrogen and its Primary and Secondary Components with the Alpha Magnetic Spectrometer on the International Space Station [PDF]

, 2019
A precision measurement of the nitrogen flux with rigidity (momentum per unit charge) from 2.2 GV to 3.3 TV based on 2.2×106 events is presented. The detailed rigidity dependence of the nitrogen flux spectral index is presented for the first time.
Arruda, L., Orcinha, M., AMS collaboration (243 authors), Barao, F.   +3 more
core   +1 more source

Properties of Heavy Secondary Fluorine Cosmic Rays: Results from the Alpha Magnetic Spectrometer [PDF]

, 2022
Precise knowledge of the charge and rigidity dependence of the secondary cosmic ray fluxes and the secondary-to-primary flux ratios is essential in the understanding of cosmic ray propagation.
Bourquin M, Formato V, Khiali B, Schael S, Rancoita PG, Kim GN, Aguilar M, Su T, Usoskin I, Barao F, La Vacca G, Seo ES, Kirn T, Sagdeev R, Derome L, Rozhkov A, Weng ZL, Palermo M, Strigari L, Ting SCC, Gervasi M, Dadzie K, Grabski V, Mana C, Bindi V, Rapin D, Garcia-Lopez RJ, Burmeister S, Chou HY, Qu ZY, Fisher P, Feng J, Zhuang HL, Xiong RQ, Xu W, Laurenti G, Acosta MV, Phan HD, Menchaca-Rocha A, Meng Q, Goy C, Masi N, Machate F, Cervelli F, Liu JH, Tomassetti N, Lu SQ, Wang ZM, Contin A, Song JW, Duranti M, Ting SM, Zhao F, Cai XD, Kuhlman A, Grandi D, Wei J, Graziani M, Koutsenko V, Tian J, Casaus J, Galaktionov Y, Zannoni M, Yashin II, Haino S, Arruda L, Zhang JH, Shan BS, Lee SC, Sonnabend R, Palmonari F, Incagli M, Marquardt J, Gomez-Coral DM, Castellini G, Gargiulo C, Han KC, Poluianov S, Lebedev A, Dong F, Paniccia M, Hashmani RK, Laudi E, Lu YS, Chen Y, Kounine A, Hsieh TH, Nozzoli F, Wang LQ, von Doetinchem P, Li Q, Pauluzzi M, Lee HT, Li M, Giovacchini F, Zhukov V, Konyushikhin M, Li S, Nikonov N, Siedenburg T, Martinez G, Piandani R, Mott P, Allen MS, Luebelsmeyer K, Chung CH, Battiston R, Li ZH, Maurin D, Rozza D, Liu Z, Burger J, Wang NH, Lippert T, Bollweg K, Jia Y, Zheng C, Chang YH, Coignet G, Jinchi H, Ambrosi G, Kulemzin A, Li JQ, Zhang Z, Gast H, Light C, Luo X, Molero M, Behlmann M, Li JH, Zhang F, Della Torre S, Chen HS, Clark C, Hu JY, Berdugo J, Liang J, Tang XW, Basegmez-du Pree S, Demirkoz MB, Martin T, Zhang C, Delgado C, Fiandrini E, Chen GM, Chen GR, Conde AR, Quadrani L, Capell M, Zuccon P, He ZH, Chouridou S, Attig N, Boschini MJ, Shakfa Z, Wang QL, Barrin L, Lazzizzera I, Vainio R, Qin X, Oliva A, Donnini F, Plyaskin V, Cheng L, Heber B, Gamez C, Yu YM, Urban T, Bertucci B, Marin J, Yi H, Dimiccoli F, Velasco M, Cui Z, Rosier-Lees S, Yu ZQ, Alpat B, Tacconi M, Wang L, Wu H, Orcinha M, Wang CX, Sun Q, Corti C, Kounina O, Wang S, Lyu SS, Wang X, Wang Y, Luo JZ, Zichichi A, Tuysuz C, Burger WJ, Freeman C, Kanishev K, Bueno EF, Choutko V, Torsti J, Yang Y, von Dratzig AS, Diaz C, Solano C, Di Falco S, Schwering G, Pensotti S, Zheng ZM, Tang ZC, Eline A, Valente E, Vialle JP, Valtonen E, Vecchi M, Pashnin A, Robyn E, Borgia B, Di Felice V, Egorov A, Gong J, Zhang FZ, Lin CH, Negrete J, Beranek B, Jang WY, Cavasonza LA, Yan Q, Mussolin L, Sun ZT, Mo DC, Song XJ, Bartoloni A, Mikhailov VV, Consolandi C, Vagelli V, Valencia-Otero M   +233 more
core   +3 more sources

Prospects of the air-shower radio array at the Tien Shan high-altitude scientific station

Вестник. Серия физическая, 2021
High energy astrophysics has been actively developed since the last decades. The photons and neutrinos produced at astrophysical sources were detected up to energies of PeV, while the measured spectrum of cosmic rays lasts from GeV to ZeV energies.
P.A. Bezyazeekov, O. Fedorov, D. Kostunin   +2 more
doaj   +1 more source

Stand-Alone Cosmic-Ray Tomography with Secondary Particles [PDF]

Journal of Advanced Instrumentation in Science
The imaging technique of cosmic-ray tomography is usually based on the measurement of muon transmis-sion and muon scattering within the examined volume. Secondary particles produced from the interaction of air shower particles with the target material have been proven to carry complementary informationdirectly related to the target material properties.
Maximilian Pérez Prada, Sarah Barnes, Maurice Stephan   +2 more
openaire   +2 more sources

Femtosecond‐Laser Nanocavitation Regenerates SERS‐Active Plasmonic Nanogaps for Longitudinal Molecular Sensing at Biointerfaces

Advanced Science, EarlyView.
A regenerative molecular sensing platform that co‐localizes surface‐enhanced Raman spectroscopy (SERS) sensing and nanocavitation‐based actuation. Femtosecond‐laser triggered nanocavitation produces thermomechanical forces to locally regenerate SERS‐active nanogaps in protein‐rich biofluids while preserving optical performance.
Aditya Garg, Ze Zong, Meitong Nie, Stacie E. Deaver, Elizabeth M. Van Order, Elieser Mejia, Peter Vikesland, Erin S. Gloag, Wei Zhou   +8 more
wiley   +1 more source

The AMS-02 Cosmic-Ray Deuteron Flux is Consistent with a Secondary Origin

The Astrophysical Journal Letters
The recent measurements of cosmic-ray (CR) deuteron fluxes by AMS-02 show that the rigidity dependence of deuterons is similar with that of protons but flatter than ^3 He, which has been attributed to the existence of primary deuterons with abundance ...
Qiang Yuan, Yi-Zhong Fan
doaj   +1 more source

Observing cosmic-ray extensive air showers with a silicon imaging detector

Scientific Reports, 2023
Extensive air showers induced from high-energy cosmic rays provide a window into understanding the most energetic phenomena in the universe. We present a new method for observing these showers using the silicon imaging detector Subaru Hyper Suprime-Cam ...
Satoshi Kawanomoto, Michitaro Koike, Fraser Bradfield, Toshihiro Fujii, Yutaka Komiyama, Satoshi Miyazaki, Tomoki Morokuma, Hitoshi Murayama, Masamune Oguri, Tsuyoshi Terai   +9 more
doaj   +1 more source

Cosmic-ray secondary nuclei and the structure of the galaxy [PDF]

The Astrophysical Journal, 1985
The consequencies of diffusive acceleration of cosmic rays in supernova shocks propagation through an inhomogeneous interstellar medium are explored. The acceleration takes place in the hot, tenuous, intercloud gas, while nuclear collisions, leading to the production of cosmic ray secondaries, predominantly occur in those regions where the supernova ...
G. E. Morfill, P. Meyer, R. Luest
openaire   +1 more source