|
1.
|
Measurement of the Principal Quantum Number Distribution in a Beam of Antihydrogen Atoms
/ Kolbinger, B. (Stefan Meyer Inst. Subatomare Phys. ; CERN) ; Amsler, C. (Stefan Meyer Inst. Subatomare Phys.) ; Cuendis, S. Arguedas (Stefan Meyer Inst. Subatomare Phys. ; CERN) ; Breuker, H. (RIKEN (main)) ; Capon, A. (Stefan Meyer Inst. Subatomare Phys.) ; Costantini, G. (U. Brescia ; INFN, Pavia) ; Dupré, P. (RIKEN (main)) ; Fleck, M. (Tokyo U., Komaba) ; Gligorova, A. (Stefan Meyer Inst. Subatomare Phys.) ; Higaki, H. (Hiroshima U. (main)) et al.
The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a beam at the CERN Antiproton Decelerator with initial relative precision of 10-6 or better, to test the fundamental CPT (combination of charge conjugation, parity transformation and time reversal) symmetry between matter and antimatter. This challenging goal requires a polarised antihydrogen beam with a sufficient number of antihydrogen atoms in the ground state. [...]
arXiv:2008.04246.-
2021-03-08 - 14 p.
- Published in : Eur. Phys. J. D 75 (2021) 91
Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
|
|
|
2.
|
Recent Developments from ASACUSA on Antihydrogen Detection
/ Kolbinger, B (Stefan Meyer Inst. Subatomare Phys.) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H (Nishina Ctr., RIKEN) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Dupré, P (Nishina Ctr., RIKEN) ; Fleck, M (Stefan Meyer Inst. Subatomare Phys.) ; Gligorova, A (Stefan Meyer Inst. Subatomare Phys.) ; Higaki, H (Hiroshima U.) ; Kanai, Y (Nishina Ctr., RIKEN) ; Kobayashi, T (Tokyo U.) et al.
/Asacusa
The ASACUSA Collaboration at CERNs Antiproton Decelerator aims to measure the ground state hyperfine splitting of antihydrogen with high precision to test the fundamental symmetry of CPT (combination of charge conjugation, parity transformation, and time reversal). For this purpose an antihydrogen detector has been developed. [...]
2018 - 6 p.
- Published in : EPJ Web Conf. 181 (2018) 01003
Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 11 - 15 Sep 2017, pp.01003
|
|
|
3.
|
A hydrogen beam to characterize the ASACUSA antihydrogen hyperfine spectrometer
/ ASACUSA Collaboration
The antihydrogen programme of the ASACUSA collaboration at the antiproton decelerator of CERN focuses on Rabi-type measurements of the ground-state hyperfine splitting of antihydrogen for a test of the combined Charge-Parity-Time symmetry. The spectroscopy apparatus consists of a microwave cavity to drive hyperfine transitions and a superconducting sextupole magnet for quantum state analysis via Stern-Gerlach separation [...]
arXiv:1812.06736.-
2019-08-11 - 11 p.
- Published in : Nucl. Instrum. Meth. A 935 (2019) 110-120
Fulltext: PDF; Fulltext from Publisher: PDF;
|
|
|
4.
|
|
|
5.
|
Progress of antihydrogen beam production using a double cusp trap
/ Nagata, Y (Tokyo U. of Agric. Tech. ; Wako, RIKEN) ; Kuroda, N (U. Tokyo (main)) ; Dupre, P (Wako, RIKEN) ; Radics, B (Wako, RIKEN) ; Tajima, M (U. Tokyo (main) ; Wako, RIKEN) ; Capon, A A (Stefan Meyer Inst. Subatomare Phys.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Kaga, C (ADSM, Hiroshima) ; Kolbinger, B (Stefan Meyer Inst. Subatomare Phys.) ; Leali, M (INFN, Brescia ; Brescia U.) et al.
We report the progress of the $\bar{\text{H}}$ beam production experiment and recent developments of the double cusp trap to improve of the beam intensity of the $\bar{\text{H}}$ atomic beams, the ASACUSA Micromegas tracker to monitoring the antihydrogen synthesis and the antihydrogen beam detector..
2017 - 10 p.
- Published in : JPS Conf. Proc. 18 (2017) 011007
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011007
|
|
|
6.
|
The development of the antihydrogen beam detector: Toward the three dimensional tracking with a BGO crystal and a hodoscope
/ Nagata, Y (Tokyo U. of Agric. Tech. ; Wako, RIKEN) ; Kuroda, N (Tokyo, U. Earth Sci. Astron.) ; Sauerzopf, C (Stefan Meyer Inst. Subatomare Phys.) ; Kolbinger, B (Stefan Meyer Inst. Subatomare Phys.) ; Malbrunot, C (CERN ; Stefan Meyer Inst. Subatomare Phys.) ; Capon, A A (Stefan Meyer Inst. Subatomare Phys.) ; Dupre, P (Wako, RIKEN) ; Radics, B (Wako, RIKEN) ; Tajima, M (Tokyo, U. Earth Sci. Astron. ; Wako, RIKEN) ; Kaga, C (ADSM, Hiroshima) et al.
We developed an antihydrogen beam detector for the microwave spectroscopy of the antihydrogen hyperfine splitting. The detector consists of a position sensitive BGO calorimeter and a hodoscope. [...]
2017 - 6 p.
- Published in : JPS Conf. Proc. 18 (2017) 011038
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011038
|
|
|
7.
|
The ASACUSA antihydrogen and hydrogen program : results and prospects
/ Malbrunot, C. (CERN ; Stefan Meyer Inst. Subatomare Phys.) ; Amsler, C. (Stefan Meyer Inst. Subatomare Phys.) ; Arguedas Cuendi, S. (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H. (Nishina Ctr., RIKEN) ; Dupre, P. (Nishina Ctr., RIKEN) ; Fleck, M. (Stefan Meyer Inst. Subatomare Phys.) ; Higaki, H. (ADSM, Hiroshima) ; Kanai, Y. (Nishina Ctr., RIKEN) ; Kolbinger, B. (Stefan Meyer Inst. Subatomare Phys.) ; Kuroda, N. (Tokyo U., Komaba) et al.
The goal of the ASACUSA-CUSP collaboration at the Antiproton Decelerator of CERN is to measure the ground-state hyperfine splitting of antihydrogen using an atomic spectroscopy beamline. A milestone was achieved in 2012 through the detection of 80 antihydrogen atoms 2.7 meters away from their production region. [...]
arXiv:1710.03288.-
2018-03-28 - 16 p.
- Published in : Philos. Trans. R. Soc. Lond. 376 (2018) 20170273
Fulltext: arXiv:1710.03288 - PDF; 20170273.full - PDF;
In : Antiproton Physics in the ELENA Era : Theo Murphy meeting, Newport Pagnell, Buckinghamshire, UK, 4 - 5 Sep 2017, pp.20170273
|
|
|
8.
|
Annihilation detector for an in-beam spectroscopy apparatus to measure the ground state hyperfine splitting of antihydrogen
/ Sauerzopf, Clemens (Stefan Meyer Inst. Subatomare Phys.) ; Capon, Aaron A (Stefan Meyer Inst. Subatomare Phys.) ; Diermaier, Martin (Stefan Meyer Inst. Subatomare Phys.) ; Fleck, Markus (Stefan Meyer Inst. Subatomare Phys.) ; Kolbinger, Bernadette (Stefan Meyer Inst. Subatomare Phys.) ; Malbrunot, Chloé (Stefan Meyer Inst. Subatomare Phys. ; CERN) ; Massiczek, Oswald (Stefan Meyer Inst. Subatomare Phys.) ; Simon, Martin C (Stefan Meyer Inst. Subatomare Phys.) ; Vamosi, Stefan (Stefan Meyer Inst. Subatomare Phys.) ; Zmeskal, Johann (Stefan Meyer Inst. Subatomare Phys.) et al.
The matter-antimatter asymmetry observed in the universe today still lacks a quantitative explanation. One possible mechanism that could contribute to the observed imbalance is a violation of the combined Charge-, Parity- and Time symmetries (CPT). [...]
2017 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 845 (2017) 579-582
Fulltext: PDF;
In : 14th Vienna Conference on Instrumentation, Vienna, Austria, 15 - 19 Feb 2016, pp.579-582
|
|
|
9.
|
In-beam measurement of the hydrogen hyperfine splitting - towards antihydrogen spectroscopy
/ Diermaier, M. (Stefan Meyer Inst. Subatomare Phys.) ; Jepsen, C.B. (CERN) ; Kolbinger, B. (Stefan Meyer Inst. Subatomare Phys.) ; Malbrunot, C. (CERN ; Stefan Meyer Inst. Subatomare Phys.) ; Massiczek, O. (Stefan Meyer Inst. Subatomare Phys.) ; Sauerzopf, C. (Stefan Meyer Inst. Subatomare Phys.) ; Simon, M.C. (Stefan Meyer Inst. Subatomare Phys.) ; Zmeskal, J. (Stefan Meyer Inst. Subatomare Phys.) ; Widmann, E. (Stefan Meyer Inst. Subatomare Phys.)
/Asacusa AD-3 collaboration
Antihydrogen, the lightest atom consisting purely of antimatter, is an ideal laboratory to study the CPT symmetry by comparison to hydrogen. With respect to absolute precision, transitions within the ground-state hyperfine structure (GS-HFS) are most appealing by virtue of their small energy separation. [...]
arXiv:1610.06392; CERN-EP-2016-268.-
Geneva : CERN, 2017 - 10 p.
- Published in : Nature Commun. 8 (2017) 5749
Fulltext: PDF; External link: Preprint
|
|
|
10.
|
The ASACUSA CUSP: an antihydrogen experiment
/ Kuroda, N (Tokyo U., Komaba) ; Ulmer, S (Wako, RIKEN) ; Murtagh, D J (Wako, RIKEN) ; Gorp, S (Wako, RIKEN) ; Nagata, Y (Wako, RIKEN ; Tokyo U. of Agric. Tech.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Federmann, S (CERN) ; Leali, M (INFN, Brescia ; Brescia U.) ; Malbrunot, C (CERN) ; Mascagna, V (INFN, Brescia ; Brescia U.) et al.
In order to test CPT symmetry between antihydrogen and its counterpart hydrogen, the ASACUSA collaboration plans to perform high precision microwave spectroscopy of ground-state hyperfine splitting of antihydrogen atom in-flight. We have developed an apparatus (“cusp trap”) which consists of a superconducting anti-Helmholtz coil and multiple ring electrodes. [...]
2015 - 8 p.
- Published in : Hyperfine Interact. 235 (2015) 13-20
|
|
alerte email personnalisée
ou inscrivez-vous via le 
flux RSS.