LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 2 of total 2

Search options

  1. Article ; Online: Temporal Structures in Positron Spectra and Charge-Sign Effects in Galactic Cosmic Rays.

    Aguilar, M / Ambrosi, G / Anderson, H / Arruda, L / Attig, N / Bagwell, C / Barao, F / Barbanera, M / Barrin, L / Bartoloni, A / Battiston, R / Belyaev, N / Berdugo, J / Bertucci, B / Bindi, V / Bollweg, K / Bolster, J / Borchiellini, M / Borgia, B /
    Boschini, M J / Bourquin, M / Burger, J / Burger, W J / Cai, X D / Capell, M / Casaus, J / Castellini, G / Cervelli, F / Chang, Y H / Chen, G M / Chen, G R / Chen, H / Chen, H S / Chen, Y / Cheng, L / Chou, H Y / Chouridou, S / Choutko, V / Chung, C H / Clark, C / Coignet, G / Consolandi, C / Contin, A / Corti, C / Cui, Z / Dadzie, K / D'Angelo, F / Dass, A / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Felice, V / Díaz, C / Dimiccoli, F / von Doetinchem, P / Dong, F / Donnini, F / Duranti, M / Egorov, A / Eline, A / Faldi, F / Feng, J / Fiandrini, E / Fisher, P / Formato, V / Gámez, C / García-López, R J / Gargiulo, C / Gast, H / Gervasi, M / Giovacchini, F / Gómez-Coral, D M / Gong, J / Goy, C / Grandi, D / Graziani, M / Guracho, A N / Haino, S / Han, K C / Hashmani, R K / He, Z H / Heber, B / Hsieh, T H / Hu, J Y / Huang, B W / Ionica, M / Incagli, M / Jia, Yi / Jinchi, H / Karagöz, G / Khan, S / Khiali, B / Kirn, Th / Klipfel, A P / Kounina, O / Kounine, A / Koutsenko, V / Krasnopevtsev, D / Kuhlman, A / Kulemzin, A / La Vacca, G / Laudi, E / Laurenti, G / LaVecchia, G / Lazzizzera, I / Lee, H T / Lee, S C / Li, H L / Li, J Q / Li, M / Li, Q / Li, Q Y / Li, S / Li, S L / Li, J H / Li, Z H / Liang, J / Liang, M J / Lin, C H / Lippert, T / Liu, J H / Lu, S Q / Lu, Y S / Luebelsmeyer, K / Luo, J Z / Luo, S D / Luo, Xi / Mañá, C / Marín, J / Marquardt, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Medvedeva, T / Menchaca-Rocha, A / Meng, Q / Molero, M / Mott, P / Mussolin, L / Jozani, Y Najafi / Negrete, J / Nicolaidis, R / Nikonov, N / Nozzoli, F / Ocampo-Peleteiro, J / Oliva, A / Orcinha, M / Ottupara, M A / Palermo, M / Palmonari, F / Paniccia, M / Pashnin, A / Pauluzzi, M / Pensotti, S / Plyaskin, V / Poluianov, S / Qin, X / Qu, Z Y / Quadrani, L / Rancoita, P G / Rapin, D / Conde, A Reina / Robyn, E / Rodríguez-García, I / Romaneehsen, L / Rossi, F / Rozhkov, A / Rozza, D / Sagdeev, R / Savin, E / Schael, S / von Dratzig, A Schultz / Schwering, G / Seo, E S / Shan, B S / Siedenburg, T / Silvestre, G / Song, J W / Song, X J / Sonnabend, R / Strigari, L / Su, T / Sun, Q / Sun, Z T / Tacconi, M / Tang, X W / Tang, Z C / Tian, J / Tian, Y / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Urban, T / Usoskin, I / Vagelli, V / Vainio, R / Valencia-Otero, M / Valente, E / Valtonen, E / Vázquez Acosta, M / Vecchi, M / Velasco, M / Vialle, J P / Wang, C X / Wang, L / Wang, L Q / Wang, N H / Wang, Q L / Wang, S / Wang, X / Wang, Yu / Wang, Z M / Wei, J / Weng, Z L / Wu, H / Wu, Y / Xiao, J N / Xiong, R Q / Xiong, X Z / Xu, W / Yan, Q / Yang, H T / Yang, Y / Yelland, A / Yi, H / You, Y H / Yu, Y M / Yu, Z Q / Zhang, C / Zhang, F / Zhang, F Z / Zhang, J / Zhang, J H / Zhang, Z / Zhao, F / Zheng, C / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zuccon, P

    Physical review letters

    2023  Volume 131, Issue 15, Page(s) 151002

    Abstract: We present the precision measurements of 11 years of daily cosmic positron fluxes in the rigidity range from 1.00 to 41.9 GV based on 3.4×10^{6} positrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The ... ...

    Abstract We present the precision measurements of 11 years of daily cosmic positron fluxes in the rigidity range from 1.00 to 41.9 GV based on 3.4×10^{6} positrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The positron fluxes show distinctly different time variations from the electron fluxes at short and long timescales. A hysteresis between the electron fluxes and the positron fluxes is observed with a significance greater than 5σ at rigidities below 8.5 GV. On the contrary, the positron fluxes and the proton fluxes show similar time variation. Remarkably, we found that positron fluxes are modulated more than proton fluxes with a significance greater than 5σ for rigidities below 7 GV. These continuous daily positron fluxes, together with AMS daily electron, proton, and helium fluxes over an 11-year solar cycle, provide unique input to the understanding of both the charge-sign and mass dependencies of cosmic rays in the heliosphere.
    Language English
    Publishing date 2023-10-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.151002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Properties of Cosmic-Ray Sulfur and Determination of the Composition of Primary Cosmic-Ray Carbon, Neon, Magnesium, and Sulfur: Ten-Year Results from the Alpha Magnetic Spectrometer.

    Aguilar, M / Ali Cavasonza, L / Alpat, B / Ambrosi, G / Arruda, L / Attig, N / Bagwell, C / Barao, F / Barrin, L / Bartoloni, A / Başeğmez-du Pree, S / Battiston, R / Belyaev, N / Berdugo, J / Bertucci, B / Bindi, V / Bollweg, K / Bolster, J / Borchiellini, M /
    Borgia, B / Boschini, M J / Bourquin, M / Bueno, E F / Burger, J / Burger, W J / Cai, X D / Capell, M / Casaus, J / Castellini, G / Cervelli, F / Chang, Y H / Chen, G M / Chen, G R / Chen, H / Chen, H S / Chen, Y / Cheng, L / Chou, H Y / Chouridou, S / Choutko, V / Chung, C H / Clark, C / Coignet, G / Consolandi, C / Contin, A / Corti, C / Cui, Z / Dadzie, K / Dass, A / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Felice, V / Díaz, C / Dimiccoli, F / von Doetinchem, P / Dong, F / Donnini, F / Duranti, M / Egorov, A / Eline, A / Faldi, F / Feng, J / Fiandrini, E / Fisher, P / Formato, V / Gámez, C / García-López, R J / Gargiulo, C / Gast, H / Gervasi, M / Giovacchini, F / Gómez-Coral, D M / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guracho, A N / Haino, S / Han, K C / Hashmani, R K / He, Z H / Heber, B / Hsieh, T H / Hu, J Y / Huang, B W / Incagli, M / Jang, W Y / Jia, Yi / Jinchi, H / Karagöz, G / Khiali, B / Kim, G N / Kirn, Th / Kounina, O / Kounine, A / Koutsenko, V / Krasnopevtsev, D / Kuhlman, A / Kulemzin, A / La Vacca, G / Laudi, E / Laurenti, G / LaVecchia, G / Lazzizzera, I / Lee, H T / Lee, S C / Li, H L / Li, J Q / Li, M / Li, Q / Li, Q Y / Li, S / Li, S L / Li, J H / Li, Z H / Liang, J / Liang, M J / Lin, C H / Lippert, T / Liu, J H / Lu, S Q / Lu, Y S / Luebelsmeyer, K / Luo, J Z / Luo, S D / Luo, Xi / Machate, F / Mañá, C / Marín, J / Marquardt, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Medvedeva, T / Menchaca-Rocha, A / Meng, Q / Mikhailov, V V / Molero, M / Mott, P / Mussolin, L / Negrete, J / Nikonov, N / Nozzoli, F / Ocampo-Peleteiro, J / Oliva, A / Orcinha, M / Ottupara, M A / Palermo, M / Palmonari, F / Paniccia, M / Pashnin, A / Pauluzzi, M / Pensotti, S / Plyaskin, V / Poluianov, S / Qin, X / Qu, Z Y / Quadrani, L / Rancoita, P G / Rapin, D / Reina Conde, A / Robyn, E / Romaneehsen, L / Rozhkov, A / Rozza, D / Sagdeev, R / Schael, S / Schultz von Dratzig, A / Schwering, G / Seo, E S / Shan, B S / Siedenburg, T / Song, J W / Song, X J / Sonnabend, R / Strigari, L / Su, T / Sun, Q / Sun, Z T / Tacconi, M / Tang, X W / Tang, Z C / Tian, J / Tian, Y / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Urban, T / Usoskin, I / Vagelli, V / Vainio, R / Valencia-Otero, M / Valente, E / Valtonen, E / Vázquez Acosta, M / Vecchi, M / Velasco, M / Vialle, J P / Wang, C X / Wang, L / Wang, L Q / Wang, N H / Wang, Q L / Wang, S / Wang, X / Wang, Yu / Wang, Z M / Wei, J / Weng, Z L / Wu, H / Wu, Y / Xiao, J N / Xiong, R Q / Xiong, X Z / Xu, W / Yan, Q / Yang, H T / Yang, Y / Yashin, I I / Yelland, A / Yi, H / You, Y H / Yu, Y M / Yu, Z Q / Zannoni, M / Zhang, C / Zhang, F / Zhang, F Z / Zhang, J / Zhang, J H / Zhang, Z / Zhao, F / Zheng, C / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zuccon, P

    Physical review letters

    2023  Volume 130, Issue 21, Page(s) 211002

    Abstract: We report the properties of primary cosmic-ray sulfur (S) in the rigidity range 2.15 GV to 3.0 TV based on 0.38×10^{6} sulfur nuclei collected by the Alpha Magnetic Spectrometer experiment (AMS). We observed that above 90 GV the rigidity dependence of ... ...

    Abstract We report the properties of primary cosmic-ray sulfur (S) in the rigidity range 2.15 GV to 3.0 TV based on 0.38×10^{6} sulfur nuclei collected by the Alpha Magnetic Spectrometer experiment (AMS). We observed that above 90 GV the rigidity dependence of the S flux is identical to the rigidity dependence of Ne-Mg-Si fluxes, which is different from the rigidity dependence of the He-C-O-Fe fluxes. We found that, similar to N, Na, and Al cosmic rays, over the entire rigidity range, the traditional primary cosmic rays S, Ne, Mg, and C all have sizeable secondary components, and the S, Ne, and Mg fluxes are well described by the weighted sum of the primary silicon flux and the secondary fluorine flux, and the C flux is well described by the weighted sum of the primary oxygen flux and the secondary boron flux. The primary and secondary contributions of the traditional primary cosmic-ray fluxes of C, Ne, Mg, and S (even Z elements) are distinctly different from the primary and secondary contributions of the N, Na, and Al (odd Z elements) fluxes. The abundance ratio at the source for S/Si is 0.167±0.006, for Ne/Si is 0.833±0.025, for Mg/Si is 0.994±0.029, and for C/O is 0.836±0.025. These values are determined independent of cosmic-ray propagation.
    MeSH term(s) Magnesium ; Neon ; Carbon ; Sulfur ; Magnetic Phenomena
    Chemical Substances Magnesium (I38ZP9992A) ; Neon (4VB4Y46AHD) ; Carbon (7440-44-0) ; Sulfur (70FD1KFU70)
    Language English
    Publishing date 2023-05-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.211002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top