Results 31 to 40 of about 3,312,964 (370)

Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station.

Physical Review Letters, 2016
A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49×10^{5} antiproton events and 2.42×10^{9} proton events.
M. Aguilar, L. Ali Cavasonza, B. Alpat, G. Ambrosi, L. Arruda, N. Attig, S. Aupetit, P. Azzarello, A. Bachlechner, F. Barão, A. Barrau, L. Barrin, A. Bartoloni, L. Basara, S. Başeğmez-du Pree, M. Battarbee, R. Battiston, J. Bazo, U. Becker, M. Behlmann, B. Beischer, J. Berdugo, B. Bertucci, V. Bindi, G. Boella, W. de Boer, K. Bollweg, V. Bonnivard, B. Borgia, M. Boschini, M. Bourquin, E. Bueno, J. Burger, F. Cadoux, X. Cai, M. Capell, S. Caroff, J. Casaus, G. Castellini, I. Cernuda, F. Cervelli, M. Chae, Y. H. Chang, A. Chen, G. Chen, H. Chen, L. Cheng, H. Chou, E. Choumilov, V. Choutko, C. Chung, C. Clark, R. Clavero, Nicolas Produit, C. Consolandi, A. Contin, C. Corti, B. Coste, W. Creus, M. Crispoltoni, Z. Cui, Y. Dai, C. Delgado, S. Della Torre, M. Demirköz, L. Derome, S. Di Falco, F. Dimiccoli, C. Díaz, P. von Doetinchem, F. Dong, F. Donnini, M. Duranti, D. D’Urso, A. Egorov, A. Eline, T. Eronen, J. Feng, E. Fiandrini, E. Finch, P. Fisher, V. Formato, Y. Galaktionov, G. Gallucci, B. Garcia, R. García-López, C. Gargiulo, H. Gast, I. Gebauer, M. Gervasi, A. Ghelfi, F. Giovacchini, P. Goglov, D. Gómez-Coral, J. Gong, C. Goy, V. Grabski, D. Grandi, M. Graziani, I. Guerri, K. Guo, M. Habiby, S. Haino, K. Han, Z. H. He, M. Heil, J. Hoffman, T. Hsieh, H. Huang, Z. Huang, C. Huh, M. Incagli, M. Ionica, W. Jang, H. Jinchi, S. Kang, K. Kanishev, G. Kim, K. Kim, T. Kirn, C. Konak, O. Kounina, A. Kounine, V. Koutsenko, Matthew Scott Krafczyk, G. La Vacca, E. Laudi, G. Laurenti, I. Lazzizzera, A. Lebedev, H. T. Lee, S. Lee, C. Leluc, H. S. Li, J. Li, J. Li, Q. Li, T. X. Li, W. Li, Z. Li, Z. Li, S. Lim, C. H. Lin, P. Lipari, T. Lippert, D. Liu, Hu Liu, S. Lu, Y. Lu, K. Luebelsmeyer, F. Luo, J. Luo, S. Lv, R. Majka, C. Mañá, J. Marin, T. Martin, G. Martinez, N. Masi, D. Maurin, A. Menchaca-Rocha, Q. Meng, D. Mo, L. Morescalchi, P. Mott, T. Nelson, J. Ni, N. Nikonov, F. Nozzoli, P. Nunes, A. Oliva, M. Orcinha, Federico Palmonari, C. Palomares, M. Paniccia, M. Pauluzzi, S. Pensotti, R. Pereira, N. Picot-Clemente, F. Pilo, C. Pizzolotto, V. Plyaskin, M. Pohl, V. Poireau, A. Putze, L. Quadrani, X. Qi, X. Qin, Z. Qu, T. Räihä, P. Rancoita, D. Rapin, J. Ricol, I. Rodríguez, S. Rosier-Lees, A. Rozhkov, D. Rozza, R. Sagdeev, J. Sandweiss, P. Saouter, S. Schael, S. M. Schmidt, A. Schulz von Dratzig, G. Schwering, E. Seo, B. Shan, J. Shi, T. Siedenburg, D. Son, J. Song, W. Sun, M. Tacconi, X. Tang, Z. Tang, L. Tao, D. Tescaro, S. Ting, S. Ting, N. Tomassetti, J. Torsti, C. Türkoğlu, T. Urban, V. Vagelli, E. Valente, C. Vannini, E. Valtonen, M. Vazquez Acosta, M. Vecchi, M. Velasco, J. Vialle, V. Vitale, S. Vitillo, L. Wang, N. Wang, Q. Wang, X. Wang, X. Wang, Z. Wang, C. Wei, Z. Weng, K. Whitman, J. Wienkenhöver, M. Willenbrock, H. Wu, X. Wu, X. Xia, R. Xiong, W. Xu, Qi Yan, J. Yang, M. Yang, Y. Yang, H. Yi, Y. Yu, Z. Yu, S. Zeissler, C. Zhang, J. Zhang, J. Zhang, S. Zhang, S. Zhang, Z. Zhang, Z. Zheng, Z. Q. Zhu, H. Zhuang, V. Zhukov, A. Zichichi, N. Zimmermann, P. Zuccon   +268 more
semanticscholar   +1 more source

Investigation of the Uniformity of Gel Shrinkage by Imaging Tracer Particles Using X‐Ray Microtomography

Advanced Engineering Materials, EarlyView., 2023
A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal, Mimololorun Lucy Aiyelari, Martin Dirauf, Pavel Gurikov   +3 more
wiley   +1 more source

Lorentzian Goldstone modes shared among photons and gravitons

European Physical Journal C: Particles and Fields, 2018
It has long been known that photons and gravitons may appear as vector and tensor Goldstone modes caused by spontaneous Lorentz invariance violation (SLIV). Usually this approach is considered for photons and gravitons separately. We develop the emergent
J. L. Chkareuli, J. Jejelava, Z. Kepuladze   +2 more
doaj   +1 more source

A new method for the measurement of the Michel parameters that describe the daughter muon polarization in the τ − → μ − ν ¯ $$ \overline{\nu} $$ μ ν τ decay

Journal of High Energy Physics, 2022
This paper provides a detailed description of the method for the first direct measurement of all Michel parameters in the τ − → μ − ν ¯ $$ \overline{\nu} $$ μ ν τ decay related to the polarization of the daughter muon.
D. Bodrov, P. Pakhlov
doaj   +1 more source

Formation of Conserved Charge at the de Sitter Space

Particles, 2020
The article considers a new mechanism of charge accumulation in the early Universe in theories with compact extra dimensions. The relaxation processes in the extra space metric that take place during its formation lead to the establishment of symmetrical
Valery V. Nikulin, Polina M. Petriakova, Sergey G. Rubin   +2 more
doaj   +1 more source

Weak Field Limit for Embedding Gravity

Universe, 2022
We study a perturbation theory for embedding gravity equations in a background for which corrections to the embedding function are linear with respect to corrections to the flat metric.
Stanislav Kuptsov, Mikhail Ioffe, Sergey Manida, Sergey Paston   +3 more
doaj   +1 more source

Application of quantum computing techniques in particle tracking at LHC [PDF]

EPJ Web of Conferences
After the next planned upgrades to the LHC, the luminosity it delivers will more than double, substantially increasing the already large demand on computing resources. Therefore an efficient way to reconstruct physical objects is required. Recent studies
Chan Wai Yuen, Akiyama Daiya, Arakawa Koki, Ganguly Sanmay, Kaji Toshiaki, Minami Juri, Sawada Ryu, Tanaka Junichi, Terashi Koji, Yorita Kohei   +9 more
doaj   +1 more source

External Resources: Clouds and HPCs for the expansion of the ATLAS production system at the Tokyo regional analysis center [PDF]

EPJ Web of Conferences, 2020
The Tokyo regional analysis center at the International Center for Elementary Particle Physics, the University of Tokyo, is one of the Tier 2 sites for the ATLAS experiment in the Worldwide LHC Computing Grid.
Kaneda Michiru
doaj   +1 more source

Quasimomentum of an elementary excitation for a system of point bosons under zero boundary conditions [PDF]

, 2019
As is known, an elementary excitation of a many-particle system with boundaries is not characterized by a definite momentum. We obtain the formula for the quasimomentum of an elementary excitation for a one-dimensional system of $N$ spinless point bosons
Tomchenko, Maksim D.
core   +1 more source

Mechanisms of Producing Primordial Black Holes and Their Evolution

Particles, 2023
Primordial black holes have become a highly intriguing and captivating field of study in cosmology due to their potential theoretical and observational significance.
Maxim A. Krasnov, Valery V. Nikulin
doaj   +1 more source