| Article | |
| Report number | arXiv:2310.08760 |
| Title | Positronium Laser Cooling via the Transition with a Broadband Laser Pulse |
| Related title | Positronium laser cooling via the $1^3S$-$2^3P$ transition with a broadband laser pulse |
| Author(s) |
Glöggler, L.T. (CERN) ; Gusakova, N. (CERN ; Norwegian U. Sci. Tech.) ; Rienäcker, B. (Liverpool U.) ; Camper, A. (Oslo U.) ; Caravita, R. (TIFPA-INFN, Trento) ; Huck, S. (CERN ; Hamburg U.) ; Volponi, M. (CERN ; Trento U. ; TIFPA-INFN, Trento) ; Wolz, T. (CERN) ; Penasa, L. (Trento U.) ; Krumins, V. (CERN) ; Gustafsson, F.P. (CERN) ; Comparat, D. (LAC, Orsay) ; Auzins, M. (Latvia U.) ; Bergmann, B. (CTU, Prague) ; Burian, P. (CTU, Prague) ; Brusa, R.S. (Trento U. ; TIFPA-INFN, Trento) ; Castelli, F. (INFN, Milan ; Milan U.) ; Cerchiari, G. ; Ciuryło, R. (Torun, Copernicus Astron. Ctr.) ; Consolati, G. (INFN, Milan ; Milan, Polytech.) ; Doser, M. (CERN) ; Graczykowski, Ł. (Warsaw U. of Tech.) ; Grosbart, M. (CERN) ; Guatieri, F. (Trento U. ; TIFPA-INFN, Trento) ; Haider, S. (CERN) ; Janik, M.A. (Warsaw U. of Tech.) ; Kasprowicz, G. (Warsaw U. of Tech.) ; Khatri, G. (CERN) ; Kłosowski, Ł. (Torun, Copernicus Astron. Ctr.) ; Kornakov, G. (Warsaw U. of Tech.) ; Lappo, L. (Warsaw U. of Tech.) ; Linek, A. (Torun, Copernicus Astron. Ctr.) ; Malamant, J. (Oslo U.) ; Mariazzi, S. (Trento U. ; TIFPA-INFN, Trento) ; Petracek, V. (CTU, Prague) ; Piwiński, M. (Torun, Copernicus Astron. Ctr.) ; Pospisil, S. (CTU, Prague) ; Povolo, L. (Trento U. ; TIFPA-INFN, Trento) ; Prelz, F. (INFN, Milan) ; Rangwala, S.A. (Raman Research Inst., Bangalore) ; Rauschendorfer, T. (CERN ; U. Leipzig (main)) ; Rawat, B.S. (Liverpool U. ; Daresbury) ; Rodin, V. (Liverpool U.) ; Røhne, O.M. (Oslo U.) ; Sandaker, H. (Oslo U.) ; Smolyanskiy, P. (CTU, Prague) ; Sowiński, T. (Cracow, INP) ; Tefelski, D. (Warsaw U. of Tech.) ; Vafeiadis, T. (CERN) ; Welsch, C.P. (Liverpool U. ; Daresbury) ; Zawada, M. (Torun, Copernicus Astron. Ctr.) ; Zielinski, J. (Warsaw U. of Tech.) ; Zurlo, N. (INFN, Pavia ; Brescia U.) |
| Publication | 2024-02-22 |
| Imprint | 2023-10-12 |
| Number of pages | 7 |
| In: | Phys. Rev. Lett. 132 (2024) 083402 |
| DOI | 10.1103/PhysRevLett.132.083402 |
| Subject category | hep-ex ; Particle Physics - Experiment ; physics.atom-ph ; Other Fields of Physics |
| Accelerator/Facility, Experiment | CERN AEgIS |
| Abstract | We report on laser cooling of a large fraction of positronium (Ps) in free-flight by strongly saturating the $1^3S$-$2^3P$ transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced in a magnetic and electric field-free environment. We observe two different laser-induced effects. The first effect is an increase in the number of atoms in the ground state after the time Ps has spent in the long-lived $3^3P$ states. The second effect is the one-dimensional Doppler cooling of Ps, reducing the cloud's temperature from 380(20) K to 170(20) K. We demonstrate a 58(9) % increase in the coldest fraction of the Ps ensemble. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2024 authors (License: CC BY 4.0) |
Corresponding record in: Inspire
Запись создана 2023-10-28, последняя модификация 2024-10-04