Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter,Physica Scripta

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Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter
Physica Scripta ( IF 2.9 ) Pub Date : 2020-10-06 , DOI: 10.1088/1402-4896/abbaa1
M Fan _{1,

2,

3} , M Antonello _{4,

5} , A Belov ₆ , G Bonomi _{7,

8} , R S Brusa _{9,

10} , M Caccia _{4,

5} , A Camper ₁ , R Caravita ₁₀ , F Castelli _{4,

11} , D Comparat ₁₂ , P Cheinet ₁₂ , G Consolati _{4,

13} , A Demetrio ₁₄ , L Di Noto _{2,

3} , M Doser ₁ , R Ferragut _{4,

15} , J Fesel ₁ , S Gerber ₁ , M Giammarchi ₄ , A Gligorova ₁₆ , L T Glggler ₁ , F Guatieri _{9,

10} , S Haider ₁ , A Hinterberger ₁ , A Kellerbauer ₁₇ , O Khalidova ₁ , D Krasnicky` ₂ , V Lagomarsino _{2,

3} , C Malbrunot ₁ , L Nowak ₁ , S Mariazzi _{9,

10} , V Matveev _{6,

18} , S R Mller ₁₄ , G Nebbia ₁₉ , P Nedelec ₂₀ , M Oberthaler ₁₄ , E Oswald ₁ , D Pagano _{7,

8} , L Penasa _{9,

10} , V Petracek ₂₁ , L Povolo _{9,

10} , F Prelz ₄ , M Prevedelli ₂₂ , B Riencker ₁ , O M Rhne ₂₃ , A Rotondi _{8,

24} , H Sandaker ₂₃ , R Santoro _{4,

5} , G Testera ₂ , I C Tietje ₁ , V Toso _{4,

15} , T Wolz ₁ , C Zimmer _{1,

14,

23} , N Zurlo ₂₅

Affiliation

Physics Department, CERN, 1211Geneva23, Switzerland
INFN Genova, via Dodecaneso 33, 16146Genova, Italy
Department of Physics, University of Genova, via Dodecaneso 33, 16146Genova, Italy
INFN Milano, via Celoria 16, 20133Milano, Italy
Department of Science, University of Insubria, Via Valleggio 11, 22100Como, Italy
Institute for Nuclear Research of the Russian Academy of Science, Moscow117312, Russia
Department of Mechanical and Industrial Engineering, University of Brescia, via Branze 38, 25123Brescia, Italy
INFN Pavia, via Bassi 6, 27100Pavia, Italy
Department of Physics, University of Trento, via Sommarive 14, 38123Povo, Trento, Italy
TIFPA/INFN Trento, via Sommarive 14, 38123Povo, Trento, Italy
Department of Physics ‘Aldo Pontremoli’, University of Milano, via Celoria 16, 20133Milano, Italy
Universit Paris-Saclay, CNRS, Laboratoire Aim Cotton, 91405, Orsay, France
Department of Aerospace Science and Technology, Politecnico di Milano, via La Masa 34, 20156Milano, Italy
Kirchhoff Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120Heidelberg, Germany
LNESS, Department of Physics, Politecnico di Milano, via Anzani 42, 22100Como, Italy
Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090Vienna, Austria
Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117Heidelberg, Germany
Joint Institute for Nuclear Research, Dubna141980, Russia
INFN Padova, via Marzolo 8, 35131Padova, Italy
Institute of Nuclear Physics, CNRS/IN2p3, University of Lyon 1, 69622Villeurbanne, France
Czech Technical University, Prague, Brehov 7, 11519Prague1, Czech Republic
University of Bologna, Viale Berti Pichat 6/2, 40126Bologna, Italy
Department of Physics, University of Oslo, Sem Slandsvei 24, 0371Oslo, Norway
Department of Physics, University of Pavia, via Bassi 6, 27100Pavia, Italy
Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, via Branze 43, 25123Brescia, Italy

A main scientific goal of the ##IMG## [http://ej.iop.org/images/1402-4896/95/11/114001/psabbaa1ieqn1.gif] {${\mathsf{AE}}\bar{{\mathsf{g}}}{\mathsf{IS}}$} experiment is the direct measurement of the Earth’s local gravitational acceleration g on antihydrogen. The Weak Equivalence Principle is a foundation of General Relativity. It has been extensively tested with ordinary matter but very little is known about the gravitational interaction between matter and antimatter. Antihydrogen is produced in ##IMG## [http://ej.iop.org/images/1402-4896/95/11/114001/psabbaa1ieqn2.gif] {${\mathsf{AE}}\bar{{\mathsf{g}}}{\mathsf{IS}}$} via resonant charge-exchange reaction between cold Rydberg-excited positronium and cooled down antiprotons. The achievements for the development of a pulsed cold antihydrogen source are presented. Large number of antiprotons, necessary for a significant production rate of antihydrogen, are captured, accumulated, co...

中文翻译：

用于反物质直接重力测量的脉冲式反氢生产的发展

## IMG ##的主要科学目标[http://ej.iop.org/images/1402-4896/95/11/114001/psabbaa1ieqn1.gif] {$ {\ mathsf {AE}} \ bar { {\ mathsf {g}}} {\ mathsf {IS}} $}实验是对反氢作用下地球局部重力加速度g的直接测量。弱当量原理是广义相对论的基础。它已经用普通物质进行了广泛的测试，但对物质与反物质之间的引力相互作用知之甚少。在## IMG ## [http://ej.iop.org/images/1402-4896/95/11/114001/psabbaa1ieqn2.gif] {$ {\ mathsf {AE}} \ bar {{\ {\ mathsf {IS}} $}通过冷的里德堡激发的正电子与冷却的反质子之间的共振电荷交换反应。介绍了开发脉冲冷抗氢源的成就。大量的反质子

更新日期：2020-10-07

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