1.
|
Scintillating bar detector for antiproton annihilations measurements
/ Corradini, M (Brescia U. ; INFN, Brescia) ; Leali, M (Brescia U. ; INFN, Brescia) ; Rizzini, E Lodi (Brescia U. ; INFN, Brescia) ; Mascagna, V (Brescia U. ; INFN, Brescia) ; Prest, M (Insubria U., Varese ; INFN, Milan Bicocca) ; Vallazza, E (INFN, Trieste) ; Venturelli, L (Brescia U. ; INFN, Brescia)
A detector used in two different experiments of the ASACUSA Collaboration at the CERN Antiproton Decelerator is presented. It consists of several modules, each one made of ~1 m long scintillating bars, which allows the detection of the charged particles produced in the antiproton-nuclei annihilations. [...]
2015 - 6 p.
- Published in : Hyperfine Interact. 233 (2015) 53-58
In : 5th International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 15 - 19 Sep 2014, pp.53-58
|
|
2.
|
Experimental results on antiproton-nuclei annihilation cross section at very low energies
/ Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt. ; CERN) ; Barna, D (Wigner RCP, Budapest ; Tokyo U.) ; Corradini, M (Brescia U. ; INFN, Brescia) ; Hayano, R (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Kobayashi, T (Tokyo U.) ; Leali, M (Brescia U. ; INFN, Brescia) ; Lodi-Rizzini, E (Brescia U. ; INFN, Brescia) ; Mascagna, V (Brescia U.) ; Prest, M (Insubria U., Como ; INFN, Milan Bicocca) et al.
2014 - 4 p.
- Published in : EPJ Web Conf. 66 (2014) 09001
Fulltext: PDF;
In : 25th International Nuclear Physics Conference, pp.09001
|
|
3.
|
Limits on antiproton-nuclei annihilation cross sections at ∼125 keV
/ Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt.) ; Barna, D (Wigner RCP, Budapest ; CERN) ; Corradini, M (Brescia U. ; INFN, Pavia) ; De Salvador, D (Padua U. ; INFN, Legnaro) ; Hayano, R S (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt.) ; Leali, M (Brescia U. ; INFN, Pavia) ; Lodi-Rizzini, E (Brescia U. ; INFN, Pavia) ; Mascagna, V (Brescia U. ; INFN, Pavia ; Insubria U., Como) ; Prest, M (Insubria U., Como ; INFN, Milan Bicocca) et al.
Some experimental limits on the annihilation cross sections $σ_{\textrm{ann}}$ of antiprotons on carbon, palladium, and platinum targets were determined at the previously unexplored kinetic energy region E≈125 keV. Information on $σ_{\textrm{ann}}$ at such low antiproton energies is important in understanding the dynamics of the annihilation process, and provides useful data for models that attempt to describe the matter-antimatter asymmetry in the universe by assuming the existence of islands of antimatter concentration..
2021 - 17 p.
- Published in : Nucl. Phys. A 1009 (2021) 122170
|
|
4.
|
Antihydrogen synthesis in a double-CUSP trap towards test of the CPT-symmetry
/ Radics, B (Nishina Ctr., RIKEN ; Zurich, ETH) ; Ishikawa, S (Tokyo U., Komaba) ; Kuroda, N (Tokyo U., Komaba) ; Murtagh, D J (Nishina Ctr., RIKEN) ; Nagata, Y (Nishina Ctr., RIKEN) ; Tajima, M (Tokyo U., Komaba) ; Gorp, S (Nishina Ctr., RIKEN) ; Abo, Y (ADSM, Hiroshima) ; Dupre, P (Nishina Ctr., RIKEN) ; Higashi, Y (Tokyo U., Komaba) et al.
The aim of the ASACUSA-CUSP experiment at CERN is to produce a cold, polarised antihydrogen beam and perform a high precision measurement of the ground-state hyperfine transition frequency of the antihydrogen atom and compare it with that of the hydrogen atom using the same spectroscopic beam line. Towards this goal a significant step was successfully accomplished: synthesised antihydrogen atoms have been produced in a CUSP magnetic configuration and detected at the end of our spectrometer beam line in 2012 [1]. [...]
2016
- Published in : Hyperfine Interact. 237 (2016) 156
In : 6th International Symposium on Symmetries in Subatomic Physics, Victoria, Canada, 08 - 12 Jun 2015, pp.156
|
|
5.
|
Experimental investigation of $\approx$ 130 keV kinetic energy antiprotons annihilation on nuclei
/ Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt. ; CERN) ; Barna, D (Budapest, RMKI ; Tokyo U.) ; Corradini, M (Brescia U. ; INFN, Brescia) ; Hayano, R (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Kobayashi, T (Tokyo U.) ; Leali, M (Brescia U. ; INFN, Brescia) ; Lodi-Rizzini, E (Brescia U. ; INFN, Brescia) ; Mascagna, V (Brescia U. ; INFN, Brescia) ; Prest, M (Insubria U., Como ; INFN, Milan Bicocca) et al.
The study of the antiproton ( $\bar {p}$ ) annihilation cross section on nuclei at low energies (eV-MeV region) has implications for fundamental cosmology as well as for nuclear physics. Concerning the former, different models try to explain the matter/antimatter asymmetry in the universe assuming the existence of the so-called “islands” where antinucleon-nucleon annihilations occur in the border region (Cohen et al. [...]
2014 - 6 p.
- Published in : Hyperfine Interact. 229 (2014) 31-36
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.31-36
|
|
6.
|
New results of the antiproton-carbon annihilation cross section measurement at low energies
/ Aghai–Khozani, H (Munich, Max Planck Inst. Quantenopt.) ; Corradini, M (Brescia U. ; INFN, Pavia) ; Hayano, R (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Leali, M (Brescia U. ; INFN, Pavia) ; Lodi–Rizzini, E (Brescia U. ; INFN, Pavia) ; Mascagna, V (Brescia U. ; INFN, Pavia) ; Murakami, Y (Tokyo U.) ; Prest, M (Insubria U., Varese ; INFN, Milan Bicocca) ; Solazzi, L (Brescia U. ; INFN, Pavia) et al.
The antinucleon-nuclei annihilation cross section at very low energy has been measured at the LEAR facility (CERN) during the 80's and 90's and recently at the Antiproton Decelerator. The results have raised some interesting questions that still need answers. [...]
2016 - 3 p.
- Published in : EPJ Web Conf. 130 (2016) 07014
Fulltext: PDF;
In : 14th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2 - 7 Jun 2016, pp.07014
|
|
7.
|
Measurement of the antiproton–nucleus annihilation cross-section at low energy
/ Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt.) ; Bianconi, A (U. Brescia ; INFN, Pavia) ; Corradini, M (U. Brescia ; INFN, Pavia) ; Hayano, R (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Leali, M (U. Brescia ; INFN, Pavia) ; Lodi Rizzini, E (U. Brescia ; INFN, Pavia) ; Mascagna, V (U. Brescia ; INFN, Pavia) ; Murakami, Y (Tokyo U.) ; Prest, M (INFN, Milan Bicocca ; Insubria U., Como) et al.
Systematic measurements of the annihilation cross sections of low energy antinucleons were performed at CERN in the 80's and 90's. However the antiproton data on medium-heavy and heavy nuclear targets are scarce. [...]
2018 - 13 p.
- Published in : Nucl. Phys. A 970 (2018) 366-378
|
|
8.
|
Antihydrogen synthesis in a double-cusp trap
/ Kuroda, Naofumi (Tokyo U., Komaba) ; Tajima, Minori (Tokyo U., Komaba ; RIKEN (main)) ; Radics, Balint (RIKEN (main)) ; Dupré, Pierre (RIKEN (main)) ; Nagata, Yugo (Tokyo U. of Agric. Tech.) ; Kaga, Chikato (ADSM, Hiroshima) ; Kanai, Yasuyuki (RIKEN (main)) ; Leali, Marco (Brescia U. ; INFN, Brescia) ; Rizzini, Evandro Lodi (Brescia U. ; INFN, Brescia) ; Mascagna, Valerio (Brescia U. ; INFN, Brescia) et al.
The ASACUSA CUSP experiment plans a high precision spectroscopy of the ground-state hyperfine splitting of antihydrogen to test CPT symmetry. To perform this, a Rabi-like antiatomic beam method has been developed with a novel double-cusp trap. [...]
2017 - 6 p.
- Published in : JPS Conf. Proc. 18 (2017) 011009
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011009
|
|
9.
|
Upgrade of the scintillating bars detector for the ASACUSA experiment
/ Costantini, Giovanni (Brescia U. ; INFN, Pavia) ; Giorleo, Luca (Brescia U.) ; Gosta, Giulia (Brescia U. ; INFN, Pavia) ; Leali, Marco (Brescia U. ; INFN, Pavia) ; Mascagna, Valerio (Brescia U. ; INFN, Pavia) ; Migliorati, Stefano (Brescia U. ; INFN, Pavia) ; Prest, Michela (Catania U. ; INFN, Milan Bicocca) ; Ronchetti, Federico (Catania U. ; INFN, Milan Bicocca) ; Solazzi, Luigi (Brescia U. ; INFN, Pavia) ; Vallazza, Erik (INFN, Milan Bicocca) et al.
The upgrade of the scintillating bars detector, used in the experiments of the ASACUSA Collaboration at the CERN Antiproton Decelerator is presented. The detector consists of several modules, each one made of ≈1m long scintillating bars, which allow the detection of the charged particles produced in the annihilations of antiprotons and antihydrogens. [...]
2022 - 5 p.
- Published in : EPJ Web Conf. 262 (2022) 01013
Fulltext: PDF;
In : 7th International Conference on Exotic Atoms and Related Topics, Online, 13 - 17 Sep 2021, pp.01013
|
|
10.
|
The AEgIS Experiment
/ Knecht, A (CERN) ; Aghion, S (Milan Polytechnic) ; Ahlen, O (CERN) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) et al.
The AEgIS experiment aims at performing the first test of the Weak Equivalence Principle of General Relativity in the antimatter sector by measuring the gravitational acceleration acting on a beam of cold antihydrogen to a precision of 1%. The installation of the apparatus is making good progress and large parts were taken into operation. [...]
2014 - 11 p.
- Published in : Hyperfine Interact. 228 (2014) 121-131
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.121-131
|
|