4-11 July 2018
COEX, SEOUL
Asia/Seoul timezone

Contribution List

855 / 855
Giuseppe La Vacca (Universita & INFN, Milano-Bicocca (IT)), Iris Gebauer (KIT - Karlsruhe Institute of Technology (DE)), Jorge Casaus (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Maura Graziani (KIT - Karlsruhe Institute of Technology (DE)), Miguel Angel Velasco Frutos (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Stefan Zeissler (KIT - Karlsruhe Institute of Technology (DE))
Astro-particle Physics and Cosmology
Parallel

Analysis of anisotropy of the arrival directions of galactic protons, electrons and positrons has been performed with the Alpha Magnetic Spectrometer on the International Space Station. These results allow to differentiate between point-like and diffuse sources of cosmic rays for the explanation of the observed excess of high energy positrons. The AMS results on the dipole anisotropy are...

Yen-Jie Lee (Massachusetts Inst. of Technology (US)), Anthony Badea (Massachusetts Inst. of Technology (US)), Austin Alan Baty (Massachusetts Inst. of Technology (US)), Christopher Mcginn (Massachusetts Inst. of Technology (US)), Gian Michele Innocenti (Massachusetts Inst. of Technology (US)), Jesse Thaler (MIT), Marcello Maggi (Universita e INFN, Bari (IT)), Michael Peters (Massachusetts Inst. of Technology (US)), Paoti Chang (National Taiwan University (TW)), Mr Tzu-An Sheng (National Taiwan University)
Heavy Ions
Parallel

First results on two-particle angular correlations for charged particles emitted in $e^+e^-$ collisions using 730 $pb^{-1}$ of data collected between 91 and 209 GeV with the ALEPH detector at LEP are presented. With the archived data, the correlation functions are studied over a broad range of pseudorapidity $\eta$ (rapidity $y$) and azimuthal angle $\phi$ with respect to the electron-positron...

Alberto Oliva (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Hu Liu (Massachusetts Inst. of Technology (US)), Laurent Yves Marie Derome (Centre National de la Recherche Scientifique (FR)), Melanie Heil (Massachusetts Inst. of Technology (US)), Paolo Zuccon (Massachusetts Inst. of Technology (US)), Qi Yan (Massachusetts Inst. of Technology (US)), Sadakazu Haino (Academia Sinica (TW)), Valerio Formato (Universita e INFN, Perugia (IT))
Astro-particle Physics and Cosmology
Parallel

The precision measurement of primary cosmic rays fluxes (in particular helium, carbon and oxygen) in the rigidity range from 2 GV to 3 TV is presented based on 90 million helium, 8 million carbon and 7 million oxygen nuclei collected by the Alpha Magnetic Spectrometer during its first 5 years of operation.
Unexpectedly, above 60 GV, these three spectra have identical rigidity dependence,...

Cen Zhang (Institute of High Energy Physics, Chinese Academy Sciences), Henning Gast (Rheinisch Westfaelische Tech. Hoch. (DE)), Nikolas Zimmermann (Rheinisch Westfaelische Tech. Hoch. (DE)), Weiwei Xu (Massachusetts Inst. of Technology (US)), Zhili Weng (Massachusetts Inst. of Technology (US)), Zuhao Li (Chinese Academy of Sciences (CN))
Astro-particle Physics and Cosmology
Parallel

Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron and positron fluxes in the energy range up to 1000 GeV are presented. The electron flux and the positron flux are significantly different in their magnitude and energy dependence. Their behavior is consistent with the contribution from a new source of high energy...

Alberto Oliva (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Francesca Giovacchini (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Hu Liu (Massachusetts Inst. of Technology (US)), Javier Berdugo Perez (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Melanie Heil (Massachusetts Inst. of Technology (US)), Qi Yan (Massachusetts Inst. of Technology (US)), Valerio Formato (Universita e INFN, Perugia (IT))
Astro-particle Physics and Cosmology
Parallel

The nitrogen flux in cosmic rays is expected to contain both primary and secondary components, so the knowledge of their relative contributions is important in understanding the origin, acceleration, and propagation of cosmic rays. A precise measurement of the nitrogen flux with rigidity from 2 GV to 3 TV based on 2 million nuclei collected by AMS during first 5 years of operation is presented.

Cen Zhang (Institute of High Energy Physics, Chinese Academy Sciences), Henning Gast (Rheinisch Westfaelische Tech. Hoch. (DE)), Manuela Vecchi (Universidade de Sao Paulo (BR)), Nikolas Zimmermann (Rheinisch Westfaelische Tech. Hoch. (DE)), Weiwei Xu (Massachusetts Inst. of Technology (US)), Zhili Weng (Massachusetts Inst. of Technology (US)), Zuhao Li (Chinese Academy of Sciences (CN))
Astro-particle Physics and Cosmology
Parallel

Precision measurements by AMS of the positron fraction and the combined electron and positron flux in primary cosmic rays in the energy range from up to 1000 GeV based on 25 million positron and electron events is presented. This measurement extends the energy range of our previous observation and increases its precision. The new results show that at ∼300 GeV the positron fraction reaches its...

Amaresh Datta (University of Hawai'i at Manoa (US)), Andreas Bachlechner (Rheinisch Westfaelische Tech. Hoch. (DE)), Jie Feng (Academia Sinica (TW)), Philip Von Doetinchem (University of Hawaii at Manoa), Sadakazu Haino (Academia Sinica (TW)), Senquan Lu (Academia Sinica (TW)), Travis Gordon Nelson, Dr Zhicheng Tang (Chinese Academy of Sciences (CN)), Zhili Weng (Massachusetts Inst. of Technology (US))
Astro-particle Physics and Cosmology
Parallel

The fluxes and flux ratios of charged elementary particles in cosmic rays are presented in the absolute rigidity range from 1 to 1000 GV. In the absolute rigidity range ∼60 to ∼500 GV, the antiproton, proton, and positron fluxes are found to have nearly identical rigidity dependence and the electron flux exhibits different rigidity dependence. Below 60 GV, the antiproton-to-proton,...