Zobrazeno 1 - 10
of 366
pro vyhledávání: '"Gotta D."'
Autor:
Gotta D., Amaro F.D., Anagnostopoulos D.F., Bühler P., Covita D.S., Fuhrmann H., Gorke H., Gruber A., Hennebach M., Hirtl A., Ishiwatari T., Indelicato P., Jensen T.S., Le Bigot E.-O., Liu Y.-W., Manil B., Markushin V.E., Marton J., Nekipelov M., Pomerantsev V.N., Popov V.P., el Hassani A. J. Rusi, dos Santos J. M. F., Schlesser S., Schmid Ph., Simons L.M., Strauch Th., Theisen M., Trassinelli M., Veloso J. F. C. A., Zmeskal J.
Publikováno v:
EPJ Web of Conferences, Vol 262, p 01005 (2022)
The strong-interaction effects both in pionic hydrogen and deuterium atoms have been re-determined with improved precision. The hadronic shift and width in pionic hydrogen together with the hadronic shift in pionic deuterium constitute a one-fold con
Externí odkaz:
https://doaj.org/article/a9671cbbcf7542acbbb68d49da7ac468
Autor:
Trassinelli M., Anagnostopoulos D.F., Borchert G., Dax A., Egger J.-P., Gotta D., Hennebach M., Indelicato P., Liu Y.-W., Manil B., Nelms N., Simons L.M., Wells A.
Publikováno v:
EPJ Web of Conferences, Vol 130, p 01022 (2016)
We present a new evaluation of the negatively charged pion mass based on the simultaneous spectroscopy of pionic nitrogen and muonic oxygen transitions using a gaseous target composed by a N2/O2 mixture at 1.4 bar. We present the experimental set-up
Externí odkaz:
https://doaj.org/article/26d964808d0040a5bd3b45353fd1dd23
Autor:
Schlesser S., Schmid Ph., dos Santos J.M.F., Nekipelov M., Le Bigot E.-O., Indelicato P., Hirtl A., Gruber A., Gotta D., Gorke H., Covita D.S., Bühler P., Anagnostopoulos D.F., Amaro F.D., Strauch Th., Simons L.M., Trassinelli M., Veloso J.F.C.A., Zmeskal J.
Publikováno v:
EPJ Web of Conferences, Vol 3, p 03006 (2010)
The strong interaction shift ε1sπD and broadening Γ1sπD in pionic deuterium have been remeasured with high statistics by means of the πD(3p − 1s) X-ray transition using the cyclotron trap and a high-resolution crystal πD πD spectrometer. Pre
Externí odkaz:
https://doaj.org/article/51d84220f6f14b82b019311187e76fa9
Autor:
Covita, D. S., Anagnostopoulos, D. F., Fuhrmann, H., Gorke, H., Gotta, D., Gruber, A., Hirtl, A., Ishiwatari, T., Indelicato, P., Jensen, T. S., Bigot, E. -O. Le, Markushin, V. E., Nekipelov, M., Pomerantsev, V. N., Popov, V. P., Santos, J. M. F. dos, Schmid, Ph., Simons, L. M., Theisen, M., Trassinelli, M., Veloso, J. F. C. A., Zmeskal, J.
The K$\beta$ transition in muonic hydrogen was measured with a high-resolution crystal spectrometer. The spectrum is shown to be sensitive to the ground-state hyperfine splitting, the corresponding triplet-to-singlet ratio, and the kinetic energy dis
Externí odkaz:
http://arxiv.org/abs/1709.05950
Autor:
Trassinelli, M, Anagnostopoulos, D. F., Borchert, G., Dax, A., Egger, J. P, Gotta, D., Hennebach, M., Indelicato, P., Liu, Y. -W., Manil, B., Nelms, N., Simons, L. M., Wells, A.
Publikováno v:
Phys. Lett. B 759, 583-588 (2016)
The $5g-4f$ transitions in pionic nitrogen and muonic oxygen were measured simultaneously by using a gaseous nitrogen-oxygen mixture at 1.4\,bar. Due to the precise knowledge of the muon mass the muonic line provides the energy calibration for the pi
Externí odkaz:
http://arxiv.org/abs/1605.03300
Autor:
Hennebach, M., Anagnostopoulos, D. F., Dax, A., Fuhrmann, H., Gotta, D., Gruber, A., Hirtl, A., Indelicato, P., Liu, Y. -W., Manil, B., Markushin, V. E., Hassani, A. J. Rusi el, Simons, L. M., Trassinelli, M., Zmeskal, J.
The hadronic shift in pionic hydrogen has been redetermined to be $\epsilon_{1s}=7.086\,\pm\,0.007(stat)\,\pm\,0.006(sys)$\,eV by X-ray spectroscopy of ground state transitions applying various energy calibration schemes. The experiment was performed
Externí odkaz:
http://arxiv.org/abs/1406.6525
Autor:
Strauch, Th., Amaro, F. D., Anagnostopoulos, D., Bühler, P., Covita, D. S., Gorke, H., Gotta, D., Gruber, A., Hirtl, A., Indelicato, P., Bigot, E. -O. Le, Nekipelov, M., Santos, J. M. F. dos, Schmid, Ph., Schlesser, S., Simons, L. M., Trassinelli, M., Veloso, J. F. C. A., Zmeskal, J.
Publikováno v:
Eur.Phys.J.A47:88,2011
The strong interaction shift $\epsilon$ and broadening {\Gamma} in pionic deuterium have been determined in a high statistics study of the {\pi}D(3p - 1s) X-ray transition using a high-resolution crystal spectrometer. The pionic deuterium shift will
Externí odkaz:
http://arxiv.org/abs/1011.2415
Autor:
Strauch, Th., Amaro, F. D., Anagnostopoulos, D. F., Bühler, P., Covita, D. S., Gorke, H., Gotta, D., Gruber, A., Hirtl, A., Indelicato, P., LeBigot, E. -O., Nekipelov, M., Santos, J. M. F. dos, Schlesser, S., Schmid, Ph., Simons, L. M., Trassinelli, M., Veloso, J. F. C. A., Zmeskal, J.
Publikováno v:
Phys.Rev.Lett.104:142503,2010
An unusual but effective way to determine at threshold the dpi -> NN transition strength is to exploit the hadronic ground-state broadening in pionic deuterium, accessible by x-ray spectroscopy. The broadening is dominated by the true absorption chan
Externí odkaz:
http://arxiv.org/abs/1003.4153
Autor:
Covita, D. S., Anagnostopoulos, D. F., Gorke, H., Gotta, D., Gruber, A., Hirtl, A., Ishiwatari, T., Indelicato, P., LeBigot, E. -O., Nekipelov, M., Santos, J. M. F. dos, Schmid, Ph., Simons, L. M., Trassinelli, M., Veloso, J. F. C. A., Zmeskal, J.
The (3p - 1s) X-ray transition to the muonic hydrogen ground state was measured with a high resolution crystal spectrometer. A Doppler effect broadening of the X-ray line was established which could be attributed to different Coulomb de-excitation st
Externí odkaz:
http://arxiv.org/abs/0810.1663
Publikováno v:
Eur. Phys. J. D 47, 11-26 (2008)
The onset of antiprotonic X-ray transitions at high principal quantum numbers and the occurence of electronic X-rays in antiprotonic argon, krypton, and xenon has been analyzed with the help of Multiconfiguration Dirac-Fock calculations. The shell-by
Externí odkaz:
http://arxiv.org/abs/0801.3405