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CERN Document Server 20 record trovati  1 - 10successivo  salta al record: La ricerca ha impiegato 1.30 secondi. 
1.
The scintillating bar detector of the ASACUSA experiment / Mascagna, V (U. Brescia ; INFN, Pavia) ; Amsler, Claude (Stefan Meyer Inst. Subatomare Phys.) ; Bayo, Matias (Milan Polytechnic ; INFN, Milan) ; Breuker, Horst (Wako, RIKEN) ; Bumbar, Marcus (Vienna U. ; CERN ; Imperial Coll., London) ; Cerwenka, Matti (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Costantini, Giovanni (U. Brescia ; INFN, Pavia) ; Ferragut, Rafael (Milan Polytechnic ; INFN, Milan) ; Giammarchi, Marco (INFN, Milan) ; Gligorova, Angela (Wako, RIKEN) et al.
Detecting charged pions emitted from antiproton annihilation on nuclei is a well-established technique utilized to determine annihilation vertex positions, crucial for several experiments in the antimatter field. For the past decade, a detector composed of plastic scintillating bars has been integral to the ASACUSA experiment, employed in both antihydrogen formation experiments and annihilation cross-section measurements. [...]
2025 - 8 p. - Published in : PoS EXA-LEAP2024 (2025) 077 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics and Conference on Low Energy Antiprotons (EXA/LEAP 2024), Vienna, Austria, 26 - 30 Aug 2024, pp.077
Record dettagliato
2.
CPT and Lorentz symmetry tests with hydrogen using a novel in-beam hyperfine spectroscopy method applicable to antihydrogen experiments / Nowak, Lilian (CERN ; Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Malbrunot, Chloe (CERN) ; Simon, Martin C. (Stefan Meyer Inst. Subatomare Phys.) ; Amsler, Claude (Stefan Meyer Inst. Subatomare Phys.) ; Cuendis, Sergio Arguedas (Stefan Meyer Inst. Subatomare Phys.) ; Lahs, Sebastian (Stefan Meyer Inst. Subatomare Phys.) ; Lanz, Andreas (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Nanda, Amit (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Wiesinger, Markus (Stefan Meyer Inst. Subatomare Phys.) ; Wolz, Tim (CERN) et al.
We present a Rabi-type measurement of two ground-state hydrogen hyperfine transitions performed in two opposite external magnetic field directions. This puts first constraints at the level of 2.3 10^-21 GeV on a set of coefficients of the Standard Model Extension, which were not measured by previous experiments. [...]
arXiv:2403.17763.- 2024-09-10 - 7 p. - Published in : Phys. Lett. B 858 (2024) 139012 Fulltext: 2403.17763 - PDF; Publication - PDF;
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3.
Injection and capture of antiprotons in a Penning–Malmberg trap using a drift tube accelerator and degrader foil / Amsler, C. (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H. (Wako, RIKEN) ; Bumbar, M. (CERN) ; Chesnevskaya, S. (Stefan Meyer Inst. Subatomare Phys.) ; Costantini, G. (Brescia U. ; INFN, Pavia) ; Ferragut, R. (INFN, Milan ; Padua U. ; INFN, Padua) ; Giammarchi, M. (Padua U. ; INFN, Padua) ; Gligorova, A. (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, G. (Brescia U. ; INFN, Pavia) ; Higaki, H. (Hiroshima U.) et al.
The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018, now supplies a bunch of electron-cooled antiprotons at a fixed energy of 100 keV. [...]
arXiv:2403.09268.- 2024-06-12 - 22 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169529 Fulltext: PDF;
Record dettagliato
4.
Antiproton annihilation at rest in thin solid targets and comparison with Monte Carlo simulations / Amsler, Claude (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, Horst (Wako, RIKEN) ; Bumbar, Marcus (CERN ; Vienna U.) ; Cerwenka, Matti (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Costantini, Giovanni (Brescia U. ; INFN, Brescia ; INFN, Pavia) ; Ferragut, Rafael (Milan Polytechnic ; INFN, Milan ; Milan U.) ; Fleck, Markus (Stefan Meyer Inst. Subatomare Phys.) ; Giammarchi, Marco (INFN, Milan ; Milan U.) ; Gligorova, Angela (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, Giulia (Brescia U. ; INFN, Brescia ; INFN, Pavia) et al. /Asacusa AD-3
The mechanism of antiproton-nucleus annihilation at rest is not fully understood, despite substantial previous experimental and theoretical work. In this study we used slow extracted, sub-keV antiprotons from the ASACUSA apparatus at CERN to measure the charged particle multiplicities and their energy deposits from antiproton annihilations at rest on three different nuclei: carbon, molybdenum and gold. [...]
arXiv:2407.06721.- Geneva : CERN, 2024-11-17 - 18 p. - Published in : Eur. Phys. J. A 60 (2024) 225 Draft (restricted): PDF; Fulltext: CERN-EP-2024-182 - PDF; 2407.06721 - PDF; document - PDF;
Record dettagliato
5.
CPT and Lorentz symmetry tests with hydrogen using a novel in-beam hyperfine spectroscopy method applicable to antihydrogen experiments / Nowak, Lilian ; Malbrunot, Chloé ; Simon, Martin C. ; Amsler, Claude ; Arguedas Cuendis, Sergio ; Lahs, Sebastian ; Lanz, Andreas ; Nanda, Amit ; Wiesinger, Markus ; Wolz, Tim et al. /Asacusa AD-3
We present a Rabi-type measurement of two ground-state hydrogen hyperfine transitions performed in two opposite external magnetic field directions. This puts first constraints at the level of 2.3 × 10^{−21} GeV on a set of coefficients of the Standard Model Extension, which were not measured by previous experiments. [...]
CERN-EP-2024-089.- Geneva : CERN, 2024 - 9. Draft (restricted): PDF; Fulltext: PDF;
Record dettagliato
6.
Injection and capture of antiprotons in a Penning-Malmberg trap using a drift tube accelerator and degrader foil / Amsler, C. ; Breuker, H. ; Bumbar, M. ; Chesnevskaya, S. ; Costantini, G. ; Ferragut, R. ; Giammarchi, M. ; Gligorova, A. ; Gosta, G. ; Higaki, H. et al. /Asacusa AD-3
The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018, now supplies a bunch of electron- cooled antiprotons at a fixed energy of 100 keV. [...]
CERN-EP-2024-060.- Geneva : CERN, 2024 - 22. - Published in : Nucl. Instrum. Methods Phys. Res. A Draft (restricted): PDF; Fulltext: PDF;
Record dettagliato
7.
Upgrade of the positron system of the ASACUSA-Cusp experiment / Lanz, A. (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Amsler, C. (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H. (Wako, RIKEN) ; Bumbar, M. (Stefan Meyer Inst. Subatomare Phys.) ; Chesnevskaya, S. (Stefan Meyer Inst. Subatomare Phys.) ; Costantini, G. (Brescia U. ; INFN, Pavia) ; Ferragut, R. (Milan, Polytech.) ; Giammarchi, M. (INFN, Milan) ; Gligorova, A. (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, G. (Brescia U. ; INFN, Pavia) et al.
The ASACUSA-Cusp collaboration has recently upgraded the positron system to improve the production of antihydrogen. [...]
arXiv:2307.06133. - 10.
Fulltext
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8.
Slow positron production and storage for the ASACUSA-Cusp experiment / ASACUSA Collaboration
The ASACUSA Cusp experiment requires the production of dense positron plasmas with a high repetition rate to produce a beam of antihydrogen. In this work, details of the positron production apparatus used for the first observation of the antihydrogen beam, and subsequent measurements are described in detail [...]
arXiv:2306.12707.- 2023-12-18 - 9 p. - Published in : J. Plasma Phys. 89 (2023) 905890608 Fulltext: PDF;
Record dettagliato
9.
SDR, EVC, and SDREVC: Limitations and Extensions / ASACUSA-Cusp Collaboration
Methods for reducing the radius, temperature, and space charge of nonneutral plasma are usually reported for conditions which approximate an ideal Penning Malmberg trap. Here we show that (1) similar methods are still effective under surprisingly adverse circumstances: we perform SDR and SDREVC in a strong magnetic mirror field using only 3 out of 4 rotating wall petals. [...]
arXiv:2306.00862; CERN-EP-2023-102.- Geneva : CERN, 2023-10-31 - 8. - Published in : : 89 (2023) Draft (restricted): PDF; Fulltext: 2306.00862 - PDF; CERN-EP-2023-102 - PDF;
Record dettagliato
10.
Reducing the background temperature for cyclotron cooling in a cryogenic Penning–Malmberg trap / Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H (Wako, RIKEN) ; Chesnevskaya, S (Stefan Meyer Inst. Subatomare Phys.) ; Costantini, G (Brescia U. ; INFN, Pavia) ; Ferragut, R (INFN, Milan ; Milan U.) ; Giammarchi, M (INFN, Milan ; Milan U.) ; Gligorova, A (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, G (Brescia U. ; INFN, Pavia) ; Higaki, H (Hiroshima U.) ; Hunter, E D (Stefan Meyer Inst. Subatomare Phys.) et al.
Magnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on the microwave energy density near the cyclotron frequency. [...]
2022 - 13 p. - Published in : Phys. Plasmas 29 (2022) 083303 Fulltext: PDF;
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Vedi anche: autori con nomi simili
5 Nanda, A
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