Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Taqqu, D."'
Autor:
Nuber, J., Adamczak, A., Ahmed, M. Abdou, Affolter, L., Amaro, F. D., Amaro, P., Carvalho, P., Chang, Y. -H., Chen, T. -L., Chen, W. -L., Fernandes, L. M. P., Ferro, M., Goeldi, D., Graf, T., Guerra, M., Hänsch, T. W., Henriques, C. A. O., Hildebrandt, M., Indelicato, P., Kara, O., Kirch, K., Knecht, A., Kottmann, F., Liu, Y. -W., Machado, J., Marszalek, M., Mano, R. D. P., Monteiro, C. M. B., Nez, F., Ouf, A., Paul, N., Pohl, R., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Rajamohanan, S., Soter, A., Sustelo, L., Taqqu, D., Wang, L. -B., Wauters, F., Yzombard, P., Zeyen, M., Zhang, J., Antognini, A.
The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen ($\mu$p) with 1 ppm accuracy by means of pulsed laser spectroscopy. In the proposed experiment, the $\mu$p atom is excited by a laser p
Externí odkaz:
http://arxiv.org/abs/2211.08297
Autor:
Antognini, A., Crivelli, P., Gerchow, L., Hume, T. D., Kirch, K., Knecht, A., Nuber, J., Papa, A., Ritjoho, N., Sakurai, M., Soter, A., Taqqu, D., Vogiatzi, S. M., Zhang, J., Ziegler, L.
A low-emittance, high-intensity atomic beam of muonium ($\mathrm{M}=\mu^+ + \mathrm{e}^-$) using superfluid helium as muon-to-muonium converter is being developed at the Paul Scherrer Institute (PSI). This beam could advance laser spectroscopy of muo
Externí odkaz:
http://arxiv.org/abs/2208.11491
Autor:
Amaro, P., Adamczak, A., Ahmed, M. Abdou, Affolter, L., Amaro, F. D., Carvalho, P., Chen, T. -L., Fernandes, L. M. P., Ferro, M., Goeldi, D., Graf, T., Guerra, M., Hänsch, T. W., Henriques, C. A. O., Huang, Y. -C., Indelicato, P., Kara, O., Kirch, K., Knecht, A., Kottmann, F., Liu, Y. -W., Machado, J., Marszalek, M., Mano, R. D. P., Monteiro, C. M. B., Nez, F., Nuber, J., Ouf, A., Paul, N., Pohl, R., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Rajamohanan, S., Soter, A., Sustelo, L., Taqqu, D., Wang, L. -B., Wauters, F., Yzombard, P., Zeyen, M., Antognini, A.
Publikováno v:
SciPost Phys. 13, 020 (2022)
The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen ($\mu$p) with 1 ppm accuracy by means of pulsed laser spectroscopy to determine the two-photon-exchange contribution with $2\times10^{-
Externí odkaz:
http://arxiv.org/abs/2112.00138
Autor:
Antognini, A., Ayres, N. J., Belosevic, I., Bondar, V., Eggenberger, A., Hildebrandt, M., Iwai, R., Kaplan, D. M., Khaw, K. S., Kirch, K., Knecht, A., Papa, A., Petitjean, C., Phillips, T. J., Piegsa, F. M., Ritjoho, N., Stoykov, A., Taqqu, D., Wichmann, G.
Publikováno v:
Phys. Rev. Lett. 125, 164802 (2020)
We demonstrate efficient transverse compression of a 12.5 MeV/c muon beam stopped in a helium gas target featuring a vertical density gradient and crossed electric and magnetic fields. The muon stop distribution extending vertically over 14 mm was re
Externí odkaz:
http://arxiv.org/abs/2003.11986
Autor:
Belosevic, I., Antognini, A., Bao, Y., Eggenberger, A., Hildebrandt, M., Iwai, R., Kaplan, D. M., Khaw, K. S., Kirch, K., Knecht, A., Papa, A., Petitjean, C., Phillips, T. J., Piegsa, F. M., Ritjoho, N., Stoykov, A., Taqqu, D., Wichmann, G.
Publikováno v:
Hyperfine Interact (2019) 240: 41
Experiments with muons ($\mu^{+}$) and muonium atoms ($\mu^{+}e^{-}$) offer several promising possibilities for testing fundamental symmetries. Examples of such experiments include search for muon electric dipole moment, measurement of muon $g-2$ and
Externí odkaz:
http://arxiv.org/abs/1901.04886
Autor:
Antognini, A., Bao, Y., Belosevic, I., Eggenberger, A., Hildebrandt, M., Iwai, R., Kaplan, D. M., Khaw, K. S., Kirch, K., Knecht, A., Papa, A., Petitjean, C., Phillips, T. J., Piegsa, F. M., Ritjoho, N., Stoykov, A., Taqqu, D., Wichmann, G.
Publikováno v:
Eur. Phys. J. C (2019) 79: 430
A novel device to compress the phase space of a muon beam by a factor of $10^{10}$ with a $10^{-3}$ efficiency is under development. A surface muon beam is stopped in a helium gas target consisting of several compression stages, wherein strong electr
Externí odkaz:
http://arxiv.org/abs/1811.08332
Autor:
Schmidt, S., Willig, M., Haack, J., Horn, R., Adamczak, A., Ahmed, M. Abdou, Amaro, F. D., Amaro, P., Biraben, F., Carvalho, P., Chen, T. -L., Fernandes, L. M. P., Graf, T., Guerra, M., Hänsch, T. W., Hildebrandt, M., Huang, Y. -C., Indelicato, P., Julien, L., Kirch, K., Knecht, A., Kottmann, F., Krauth, J. J., Liu, Y. -W., Machado, J., Marszalek, M., Monteiro, C. M. B., Nez, F., Nuber, J., Patel, D. N., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Schulthess, I., Taqqu, D., Veloso, J. F. C. A., Wang, L. -B., Zeyen, M., Antognini, A., Pohl, R.
Precision spectroscopy of light muonic atoms provides unique information about the atomic and nuclear structure of these systems and thus represents a way to access fundamental interactions, properties and constants. One application comprises the det
Externí odkaz:
http://arxiv.org/abs/1808.07240
Autor:
Krauth, J. J., Schuhmann, K., Ahmed, M. Abdou, Amaro, F. D., Amaro, P., Biraben, F., Cardoso, J. M. R., Carvalho, M. L., Covita, D. S., Dax, A., Dhawan, S., Diepold, M., Fernandes, L. M. P., Franke, B., Galtier, S., Giesen, A., Gouvea, A. L., Götzfried, J., Graf, T., Guerra, M., Haack, J., Hänsch, T. W., Hildebrandt, M., Indelicato, P., Julien, L., Kirch, K., Knecht, A., Knowles, P., Kottmann, F., Bigot, E. -O. Le, Liu, Y. -W., Lopes, J. A. M., Ludhova, L., Machado, J., Monteiro, C. M. B., Mulhauser, F., Nebel, T., Nez, F., Rabinowitz, P., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Schaller, L. A., Schwob, C., Szabo, C. I., Taqqu, D., Veloso, J. F. C. A., Voss, A., Weichelt, B., Willig, M., Pohl, R., Antognini, A.
Publikováno v:
52nd Rencontres de Moriond on EW Interactions and Unified Theories, Mar 2017, La Thuile, Italy. pp.95-102
High-precision measurements of the proton radius from laser spectroscopy of muonic hydrogen demonstrated up to six standard deviations smaller values than obtained from electron-proton scattering and hydrogen spectroscopy. The status of this discrepa
Externí odkaz:
http://arxiv.org/abs/1706.00696
Autor:
Schuhmann, K., Hänsch, T. W., Kirch, K., Knecht, A., Kottmann, F., Nez, F., Pohl, R., Taqqu, D., Antognini, A.
Novel thin-disk laser pump layouts are proposed yielding an increased number of passes for a given pump module size and pump source quality. These novel layouts result from a general scheme which bases on merging two simpler pump optics arrangements.
Externí odkaz:
http://arxiv.org/abs/1509.07891
Autor:
Schuhmann, K., Ahmed, M. A., Graf, T., Hänsch, T. W., Kirch, K., Kottmann, F., Pohl, R., Taqqu, D., Voß, A., Weichelt, B., Antognini, A.
Publikováno v:
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93420U (February 20, 2015)
In the context of the Lamb shift measurement in muonic helium we developed a thin-disk laser composed of a Q-switched oscillator and a multi-pass amplifier delivering pulses of 150 mJ at a pulse duration of 100 ns. Its peculiar requirements are stoch
Externí odkaz:
http://arxiv.org/abs/1509.05731