Positron accumulation in the GBAR experiment

被引：7

作者：

Blumer, P. ^{[1
]}

Charlton, M. ^{[2
]}

Chung, M. ^{[3
]}

Clade, P. ^{[4
]}

Comini, P. ^{[5
]}

Crivelli, P. ^{[1
]}

Dalkarov, O.

Debu, P. ^{[5
]}

Dodd, L. ^{[2
]}

Douillet, A. ^{[4
,6
]}

Guellati, S. ^{[4
]}

Hervieux, P-A ^{[7
]}

Hilico, L. ^{[4
,6
]}

Husson, A. ^{[8
,19
]}

Indelicato, P. ^{[4
]}

Janka, G. ^{[1
]}

Jonsell, S. ^{[9
]}

Karr, J-P ^{[4
,6
]}

Kim, B. H. ^{[10
,11
]}

Kim, E. S. ^{[12
]}

Kim, S. K. ^{[10
]}

Ko, Y. ^{[11
]}

Kosinski, T. ^{[13
]}

Kuroda, N. ^{[14
]}

Latacz, B. M. ^{[5
,18
]}

Lee, B. ^{[10
]}

Lee, H. ^{[10
]}

Lee, J. ^{[13
]}

Leite, A. M. M. ^{[5
,20
,21
]}

Leveque, K. ^{[6
]}

Lim, E. ^{[12
]}

Liszkay, L. ^{[5
]}

Lotrus, P. ^{[5
]}

Lunney, D. ^{[8
]}

Manfredi, G. ^{[7
]}

Mansoulie, B. ^{[5
]}

Matusiak, M. ^{[13
]}

Mornacchi, G. ^{[15
]}

Nesvizhevsky, V ^{[16
]}

Nez, F. ^{[4
]}

Niang, S. ^{[8
]}

Nishi, R. ^{[14
]}

Ohayon, B. ^{[1
]}

Park, K. ^{[10
]}

Paul, N. ^{[4
]}

Perez, P. ^{[5
]}

Procureur, S. ^{[5
]}

Radics, B. ^{[1
]}

Regenfus, C. ^{[1
]}

Reymond, J-M ^{[5
]}

机构：

[1] Swiss Fed Inst Technol, Inst Particle Phys, Otto Stern Weg 5, CH-8093 Zurich, Switzerland

[2] Swansea Univ, Dept Phys, Fac Sci & Engn, Swansea SA2 8PP, W Glam, Wales

[3] Ulsan Natl Inst Sci & Technol, Ulsan 44919, South Korea

[4] Sorbonne Univ, ENS Univ PSL, Lab Kastler Brossel, CNRS,Coll France, 4 Pl Jussieu, F-75005 Paris, France

[5] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[6] Univ Paris Saclay, Univ Evry Val Essonne, Blvd Francois Mitterrand, F-91000 Evry, France

[7] Inst Phys & Chim Mat Strasbourg, 23 Rue Loess, F-67037 Strasbourg, France

[8] Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France

[9] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[10] Seoul Natl Univ, Dept Phys & Astron, 599 Gwanak Ro, Seoul 151742, South Korea

[11] Korea Univ, Grad Sch, Dept Accelerator Sci, Sejong Campus, Sejong 30019, South Korea

[12] Inst Basic Sci IBS, Ctr Underground Phys, Daejeon 34047, South Korea

[13] Narodowe Ctr Badan Jadrowych, Ul Andrzeja Soltana 7, PL-05400 Otwock, Swierk, Poland

[14] Univ Tokyo, Inst Phys, 3-8-1 Komaba, Meguro, Tokyo 1538902, Japan

[15] CERN, Phys Dept, CH-1211 Geneva 23, Switzerland

[16] Inst Laue Langevin ILL, 6 Rue Jules Horowitz, F-38042 Grenoble, France

[17] Johannes Gutenberg Univ Mainz, D-55128 Mainz, Germany

[18] RIKEN, Ulmer Fundamental Symmetries Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[19] CENBG, 19 Chemin Solarium,CS 10120, F-33175 Grandignan, France

[20] PSL Res Univ, Proton Therapy Ctr, Inst Curie, Radiat Oncol Dept,Ctr Univ, F-91898 Orsay, France

[21] Univ Paris Saclay, PSL Res Univ, Inst Curie, CNRS UMR 3347,INSEAM U1021, F-91898 Orsay, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2022年 / 1040卷

基金：

瑞典研究理事会; 新加坡国家研究基金会; 瑞士国家科学基金会;

关键词：

Positron; Accumulator; Antimatter; Antihydrogen; Gravitation; SOLID NEON MODERATOR; PLASMA; TRANSPORT;

D O I：

10.1016/j.nima.2022.167263

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present a description of the GBAR positron (e(+)) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discuss its performance. The overall goal of the GBAR experiment is to measure the acceleration of the neutral antihydrogen ((H) over bar) atom in the terrestrial gravitational field by neutralising a positive antihydrogen ion ((H) over bar (+)), which has been cooled to a low temperature, and observing the subsequent (H) over bar annihilation following free fall. To produce one (H) over bar (+) ion, about 1010 positrons, efficiently converted into positronium (Ps), together with about 10(7) antiprotons ((p) over bar), are required. The positrons, produced from an electron linac-based system, are accumulated first in the BGT whereafter they are stacked in the ultra-high vacuum HFT, where we have been able to trap 1.4(2) x 10(9) positrons in 1100 s.

引用

页数：11

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