Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Wursten E"'
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:
Ayres, N. J., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Chanel, E., Chiu, P. -J., Clement, B., Crawford, C. B., Daum, M., Doorenbos, C. B., Emmenegger, S., Fertl, M., Flaux, P., Griffith, W. C., Harris, P. G., Hild, N., Kasprzak, M., Kirch, K., Kletzl, V., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severijns, N., Shen, B., Svirina, K., Dinani, R. Tavakoli, Thorne, J. A., Touati, S., Weis, A., Wursten, E., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.
We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipole moment at the Paul Scherrer Institute. This interaction, which could
Externí odkaz:
http://arxiv.org/abs/2303.18081
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:
Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Crawford, C. B., Daum, M., Dechenaux, B., Emmenegger, S., Flaux, P., Griffith, W. C., Harris, P. G., Kermaidic, Y., Kirch, K., Komposch, S., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Naviliat-Cuncic, O., Mohanmurthy, P., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severijns, N., Stadnik, Y. V., Thorne, J. A., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.
Publikováno v:
SciPost Phys. 15, 058 (2023)
Ultra-low-mass axions are a viable dark matter candidate and may form a coherently oscillating classical field. Nuclear spins in experiments on Earth might couple to this oscillating axion dark-matter field, when propagating on Earth's trajectory thr
Externí odkaz:
http://arxiv.org/abs/2212.02403
Autor:
Abel C., Ayres N.J., Ban G., Bison G., Bodek K., Bondar V., Chanel E., Chiu P.-J., Daum M., Emmenegger S., Ferraris-Bouchez L., Flaux P., Griffith W.C., Harris P.G., Hild N., Kermaidic Y., Kirch K., Koss P.A., Krempel J., Lauss B., Lefort T., Lemiere Y., Leredde A., Mohanmurthy P., Musgrave M., Naviliat-Cuncic O., Pais D., Piegsa F.M., Pignol G., Rawlik M., Rebreyend D., Ries D., Roccia S., Rozpedzik D., Schmidt-Wellenburg P., Schnabel A., Severijns N., Thorne J., Virot R., Voigt J., Weis A., Wursten E., Zejma J., Zsigmond G.
Publikováno v:
EPJ Web of Conferences, Vol 219, p 02001 (2019)
We report on the strategy used to optimize the sensitivity of our search for a neutron electric dipole moment at the Paul Scherrer Institute. Measurements were made upon ultracold neutrons stored within a single chamber at the heart of our apparatus.
Externí odkaz:
https://doaj.org/article/b5452097489145a1a108849f707457d7
Autor:
Abel C., Ayres N. J., Ban G., Bison G., Bodek K., Bondar V., Chanel E., Chiu P.-J., Clement B., Crawford C., Daum M., Emmenegger S., Flaux P., Ferraris-Bouchez L., Griffith W.C., Grujić Z.D., Harris P.G., Heil W., Hild N., Kirch K., Koss P.A., Kozela A., Krempel J., Lauss B., Lefort T., Lemière Y., Leredde A., Mohanmurthy P., Naviliat-Cuncic O., Pais D., Piegsa F.M., Pignol G., Rawlik M., Rebreyend D., Ries D., Roccia S., Ross K., Rozpedzik D., Schmidt-Wellenburg P., Schnabel A., Severijns N., Thorne J., Virot R., Voigt J., Weis A., Wursten E., Zejma J., Zsigmond G.
Publikováno v:
EPJ Web of Conferences, Vol 219, p 02002 (2019)
We present the new spectrometer for the neutron electric dipole moment (nEDM) search at the Paul Scherrer Institute (PSI), called n2EDM. The setup is at room temperature in vacuum using ultracold neutrons. n2EDM features a large UCN double storage ch
Externí odkaz:
https://doaj.org/article/efb2eba696c648669bc20b32a3895cd4
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