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pro vyhledávání: '"Sobotka P"'
Axion-like scalar fields can induce temporary deviations from the standard expansion history of the universe. The scalar field's contribution to the energy density of the universe grows while the field is held constant by Hubble friction, but when th
Externí odkaz:
http://arxiv.org/abs/2409.06778
Autor:
García-Rivas, M., Kašparová, J., Berlicki, A., Švanda, M., Dudík, J., Čtvrtečka, D., Zapiór, M., Liu, W., Sobotka, M., Pavelková, M., Motorina, G. G.
Context: On 2022 May 4, an M5.7 flare erupted in the active region NOAA 13004, which was the target of a coordinated campaign between GREGOR, IRIS, Hinode, and ground-based instruments at the Ond\v{r}ejov observatory. A flare kernel located at the ed
Externí odkaz:
http://arxiv.org/abs/2408.10813
Autor:
Sobotka Piotr, Kliś Bartłomiej, Baranowska Zuzanna, Wołoszczuk Katarzyna, Rutkowska Katarzyna, Woliński Tomasz
Publikováno v:
Nukleonika, Vol 65, Iss 4, Pp 223-227 (2020)
The aim of this experimental work was to examine whether semiconductor photodetectors may be applied for the efficient reading of thermoluminescent dosimeter (TLD) signals. For this purpose, a series of experiments have been performed at the Departme
Externí odkaz:
https://doaj.org/article/d73a485bc8714e6eb50147c3421140a9
Publikováno v:
Phys. Rev. D 109, 063538 (2024)
We derive constraints on the injection of free-streaming dark radiation after big bang nucleosynthesis (BBN) by considering the decay of a massive hidden sector particle into dark radiation. Such a scenario has the potential to alleviate the Hubble t
Externí odkaz:
http://arxiv.org/abs/2312.13235
Optimization is an integral part of modern deep learning. Recently, the concept of learned optimizers has emerged as a way to accelerate this optimization process by replacing traditional, hand-crafted algorithms with meta-learned functions. Despite
Externí odkaz:
http://arxiv.org/abs/2312.07174
Autor:
Charity, R. J., Wylie, J., Wang, S. M., Webb, T. B., Brown, K. W., Cerizza, G., Chajecki, Z., Elson, J. M., Estee, J., Hoff, D. E. M, Kuvin, S. A., Lynch, W. G., Manfredi, J., Michel, N., McNeel, D. G., Morfouace, P., Nazarewicz, W., Pruitt, C. D., Santamaria, C., Sweany, S., Smith, J., Sobotka, L. G., Tsang, M. B., Wuosmaa, A. H.
The boundaries of the Chart of Nuclides contain exotic isotopes that possess extreme proton-toneutron asymmetries. Here we report on strong evidence of 9N, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleon
Externí odkaz:
http://arxiv.org/abs/2309.15180
Autor:
Stefanescu, A. I., Panin, V., Trache, L., Motobayashi, T., Otsu, H., Saastamoinen, A., Uesaka, T., Stuhl, L., Tanaka, J., Tudor, D., Stefanescu, I. C., Spiridon, A. E., Yoneda, K., Baba, H., Kurokawa, M., Togano, Y., Halasz, Z., Sasano, M., Ota, S., Kubota, Y., Ahn, D. S., Kobayashi, T., Elekes, Z., Fukuda, N., Takeda, H., Kim, D., Takada, E., Suzuki, H., Yoshida, K., Shimizu, Y., Liu, H. N., Sun, Y. L., Isobe, T., Gibelin, J., Li, P. J., Zenihiro, J., Marqués, F. M., Harakeh, M. N., Kiss, G. G., Kurihara, A., Yasuda, M., Nakamura, T., Park, S., Yang, Z., Harada, T., Nishimura, M., Sato, H., Hahn, I. S., Chae, K. Y., Elson, J. M., Sobotka, L. G., Bertulani, C. A.
Publikováno v:
Eur. Phys. J. A (2022) 58:223
This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number i
Externí odkaz:
http://arxiv.org/abs/2307.06867
Autor:
Charity, Robert, Sobotka, Lee
The fragmentation of a projectile into a number of pieces can lead to the creation of many resonances in different nuclei. We discuss application of the invariant-mass method to the products from such reactions to find some of the most exotic resonan
Externí odkaz:
http://arxiv.org/abs/2304.01124