Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Abbass F"'
Autor:
Latacz, B. M., Fleck, M., Jaeger, J. I., Umbrazunas, G., Arndt, B. P., Erlewein, S. R., Wursten, E. J., Devlin, J. A., Micke, P., Abbass, F., Schweitzer, D., Wiesinger, M., Will, C., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Soter, A., Quint, W., Walz, J., Yamazaki, Y., Smorra, C., Ulmer, S.
We demonstrate efficient sub-thermal cooling of the modified cyclotron mode of a single trapped antiproton and reach particle temperatures $T_+=E_+/k_\text{B}$ below $200\,$mK in preparation times shorter than $500\,$s. This corresponds to the fastes
Externí odkaz:
http://arxiv.org/abs/2404.07928
Autor:
Will, C., Wiesinger, M., Micke, P., Yildiz, H., Driscoll, T., Kommu, S., Abbass, F., Arndt, B. P., Bauer, B. B., Erlewein, S., Fleck, M., Jäger, J. I., Latacz, B. M., Mooser, A., Schweitzer, D., Umbrazunas, G., Wursten, E., Blaum, K., Devlin, J. A., Ospelkaus, C., Quint, W., Soter, A., Walz, J., Smorra, C., Ulmer, S.
We demonstrate a new temperature record for image-current mediated sympathetic cooling of a single proton in a cryogenic Penning trap by laser-cooled $^9$Be$^+$. An axial mode temperature of 170 mK is reached, which is a 15-fold improvement compared
Externí odkaz:
http://arxiv.org/abs/2310.10208
Autor:
Latacz, B. M., Arndt, B. P., Devlin, J. A., Erlewein, S. R., Fleck, M., Jäger, J. I., Micke, P., Umbrazunas, G., Wursten, E., Abbass, F., Schweitzer, D., Wiesinger, M., Will, C., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Smorra, C., Sótér, A., Quint, W., Walz, J., Yamazaki, Y., Ulmer, S.
We present the design and characterisation of a cryogenic window based on an ultra-thin aluminised PET foil at T < 10K, which can withstand a pressure difference larger than 1bar at a leak rate < $1\times 10^{-9}$ mbar$\cdot$ l/s. Its thickness of ap
Externí odkaz:
http://arxiv.org/abs/2308.12873
Autor:
Smorra, C., Abbass, F., Bohman, M., Dutheil, Y., Hobl, A., Popper, D., Arndt, B., Bauer, B. B., Devlin, J. A., Erlewein, S., Fleck, M., Jäger, J. I., Latacz, B. M., Micke, P., Schiffelholz, M., Umbrazunas, G., Wiesinger, M., Will, C., Wursten, E., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Quint, W., Soter, A., Walz, J., Yamazaki, Y., Ulmer, S.
Publikováno v:
Review of Scientific Instruments 94, 113201 (2023)
Currently, the only worldwide source of low-energy antiprotons is the AD/ELENA facility located at CERN. To date, all precision measurements on single antiprotons have been conducted at this facility and provide stringent tests of the fundamental int
Externí odkaz:
http://arxiv.org/abs/2304.09555
Autor:
Wursten, E. J., Borchert, M. J., Devlin, J. A., Erlewein, S. R., Fleck, M., Harrington, J. A., Jäger, J. I., Latacz, B. M., Micke, P., Umbrazunas, G., Abbass, F., Bohman, M., Kommu, S., Popper, D., Wiesinger, M., Will, C., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Soter, A., Quint, W., Walz, J., Yamazaki, Y., Smorra, C., Ulmer, S.
The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proto
Externí odkaz:
http://arxiv.org/abs/2302.00492
Autor:
Abbass F Al-Taee, Ahmed S Khudhur
Publikováno v:
Al-Rafidain Dental Journal, Vol 10, Iss 2, Pp 390-393 (2010)
Aims: To determine salivary pH in patients with recurrent aphthous ulceration and in control normal subjects. Materials and Methods: A controlled clinical trial was performed on 60 subjects divided into 30 normal subjects and 30 patients with recurre
Externí odkaz:
https://doaj.org/article/1aaa7e90c5ae47098bd826f8aa45a17e
Autor:
Will, C., Bohman, M., Driscoll, T., Wiesinger, M., Abbass, F., Borchert, M. J., Devlin, J. A., Erlewein, S., Fleck, M., Latacz, B., Moller, R., Mooser, A., Popper, D., Wursten, E., Blaum, K., Matsuda, Y., Ospelkaus, C., Quint, W., Walz, J., Smorra, C., Ulmer, S.
Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped charged particles. However, many species of interest lack suitable electronic transitions for direct laser cooling. We study theoretically the remote sympa
Externí odkaz:
http://arxiv.org/abs/2112.04818
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Akademický článek
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