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1.
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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; document - PDF; 2407.06721 - PDF;
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2.
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Radiation levels produced by the operation of the Beam Gas Vertex monitor in the LHC tunnel at IR4
/ Prelipcean, D (CERN) ; Lerner, G (CERN) ; García Alía, R (CERN) ; Bilko, K (CERN) ; Kolbinger, B (CERN) ; Guerin, H (CERN) ; Storey, J (CERN) ; Galloro, A (CERN) ; Kersevan, R (CERN)
The Large Hadron Collider at CERN is equipped with instruments that exploit collisions between beam particles and gas targets, one of them being the Beam Gas Vertex monitor. By design, its operation generates secondary particle showers used to measure beam properties, that also result in radiation levels in the tunnel proportional to the beam intensity and gas pressure. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPL082
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL082
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3.
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New Gas Target Design for the HL-LHC Beam Gas Vertex Profile Monitor
/ Guerin, Helene (CERN ; Royal Holloway, U. of London) ; De Maria, Riccardo (CERN) ; Gibson, Stephen (Royal Holloway, U. of London) ; Kersevan, Roberto (CERN) ; Kolbinger, Bernadette (CERN) ; Lefèvre, Thibaut (CERN) ; Ramos Garcia, Maria Teresa (CERN) ; Salvant, Benoit (CERN) ; Schneider, Gerhard (CERN) ; Storey, James (CERN)
The Beam Gas Vertex (BGV) instrument is a novel non-invasive transverse beam profile monitor under development for the High Luminosity Upgrade of the Large Hadron Collider (HL-LHC). Its principle is based on the reconstruction of the tracks and vertices issued from beam-gas inelastic hadronic interactions. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 252-256
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.252-256
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4.
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The HL-LHC Beam Gas Vertex Monitor - Performance and Design Optimisation Using Simulations
/ Kolbinger, Bernadette (CERN) ; Gibson, Stephen M (Royal Holloway, U. of London) ; Guerin, Helene (CERN ; Royal Holloway, U. of London) ; Jones, Owain Rhodri (CERN) ; Kieffer, Robert (Royal Holloway, U. of London) ; Lefèvre, Thibaut (CERN) ; Salzburger, Andreas (CERN) ; Storey, James W (CERN) ; Veness, Raymond (CERN) ; Zamantzas, Christos (CERN)
The Beam Gas Vertex (BGV) instrument is a novel non-invasive beam profile monitor and part of the High Luminosity Upgrade of the Large Hadron Collider (LHC) at CERN. Its aim is to continuously measure emittance and transverse beam profile throughout the whole LHC cycle, which has not yet been achieved by any other single device in the machine. [...]
JACoW, 2021 - 5 p.
- Published in : JACoW IBIC 2021 (2021) 249-253
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.249-253
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5.
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The HL-LHC Beam Gas Vertex Monitor - Simulations for Design Optimisation and Performance Study
/ Guerin, Helene (CERN ; Royal Holloway, U. of London) ; Gibson, Stephen M (Royal Holloway, U. of London) ; Jones, Owain Rhodri (CERN) ; Kieffer, Robert (Royal Holloway, U. of London) ; Kolbinger, Bernadette (CERN) ; Lefèvre, Thibaut (CERN) ; Salvant, Benoit (CERN) ; Storey, James W (CERN) ; Veness, Raymond (CERN) ; Zamantzas, Christos (CERN)
The Beam Gas Vertex (BGV) instrument is a non-invasive transverse beam profile monitor being designed as part of the High Luminosity Upgrade of the LHC (HL-LHC) at CERN. Its aim is to continuously measure bunch-by-bunch beam profiles, independent of beam intensity, throughout the LHC cycle. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2120-2123
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2120-2123
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6.
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A Common Tracking Software Project
/ Ai, Xiaocong (DESY) ; Allaire, Corentin (CERN) ; Calace, Noemi (CERN) ; Czirkos, Angéla (Eotvos U.) ; Elsing, Markus (CERN) ; Ene, Irina (UC, Berkeley) ; Farkas, Ralf (Bonn U.) ; Gagnon, Louis-Guillaume (UC, Berkeley) ; Garg, Rocky (Stanford U.) ; Gessinger, Paul (CERN) et al.
The reconstruction of the trajectories of charged particles, or track reconstruction, is a key computational challenge for particle and nuclear physics experiments. While the tuning of track reconstruction algorithms can depend strongly on details of the detector geometry, the algorithms currently in use by experiments share many common features. [...]
arXiv:2106.13593.-
2022-04-13 - 27 p.
- Published in : Comput. Softw. Big Sci. 6 (2022) 8
Fulltext: 2106.13593 - PDF; document - PDF;
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7.
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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;
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8.
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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
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9.
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Fulltext
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10.
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Antiproton beams with low energy spread for antihydrogen production
/ ASACUSA Collaboration
A low energy antiproton transport from the ASACUSA antiproton accumulation trap (MUSASHI trap) to the antihydrogen production trap (double cusp trap) is developed. The longitudinal antiproton energy spread after the transport line is 0.23 +- 0.02 eV, compared with 15 eV with a previous method used in 2012. [...]
arXiv:1902.09269.-
2019-05-13 - 10 p.
- Published in : JINST 14 (2019) P05009
Fulltext: 1902.09269 - PDF; fulltext1721814 - PDF; Fulltext from Publisher: PDF;
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