Positronium for Antihydrogen Production in the AEGIS Experiment

• Authors: G. Consolati , S. Aghion , C. Amsler , G. Bonomi , R. Brusa , M. Caccia , R. Caravita , F. Castelli , G. Cerchiari , D. Comparat , A. Demetrio , L. Di Noto , M. Doser , C. Evans , M. Fanì , R. Ferragut , J. Fesel , A. Fontana , S. Gerber , M. Giammarchi , A. Gligorova , F. Guatieri , S. Haider , A. Hinterberger , H. Holmestad , A. Kellerbauer , O. Khalidova , D. Krasnicky , V. Lagomarsino , P. Lansonneur , P. Lebrun , C. Malbrunot , S. Mariazzi , J. Marton , V. Matveev , Z. Mazzotta , S. Müller , G. Nebbia , P. Nedelec , M. Oberthaler , N. Pacifico , D. Pagano , L. Penasa , V. Petracek , F. Prelz , M. Prevedelli , L. Ravelli , B. Rienaecker , J. Robert , O. Røhne , A. Rotondi , H. Sandaker , R. Santoro , L. Smestad , F. Sorrentino , G. Testera , I. Tietje , E. Widmann , P. Yzombard , C. Zimmer , J. Zmeskal , N. Zurlo
• Languages of publication: EN

Abstracts

EN

The primary goal of the Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEGIS) collaboration is to measure for the first time precisely the gravitational acceleration of antihydrogen, H̅, a fundamental issue of contemporary physics, using a beam of antiatoms. Indeed, although indirect arguments have been raised against a different acceleration of antimatter with respect to matter, nevertheless some attempts to formulate quantum theories of gravity, or to unify gravity with the other forces, consider the possibility of a non-identical gravitational interaction between matter and antimatter. We plan to generate H̅ through a charge-exchange reaction between excited Ps and antiprotons coming from the Antiproton Decelerator facility at CERN. It offers the advantage to produce sufficiently cold antihydrogen to make feasible a measurement of gravitational acceleration with reasonable uncertainty (of the order of a few percent). Since the cross-section of the above reaction increases with n⁴, n being the principal quantum number of Ps, it is essential to generate Ps in a highly excited (Rydberg) state. This will occur by means of two laser excitations of Ps emitted from a nanoporous silica target: a first UV laser (at 205 nm) will bring Ps from the ground to the n=3 state; a second laser pulse (tunable in the range 1650-1700 nm) will further excite Ps to the Rydberg state.

Keywords

EN

04.80.Cc; 07.77.-n; 36.10.Dr; 78.70.Bj

Discipline

• 04.80.Cc: Experimental tests of gravitational theories
• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
• 07.77.-n: Atomic, molecular, and charged-particle sources and detectors
• 36.10.Dr: Positronium(see also 82.30.Gg Positronium chemistry)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 5
• Pages: 1443-1449

Dates

published

2017-11

Contributors

author

G. Consolati

• Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

S. Aghion

• Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

C. Amsler

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

author

G. Bonomi

• Department of Mechanical and Industrial Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy
• INFN Pavia, via Bassi 6, 27100 Pavia, Italy

author

R. Brusa

• Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy
• TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento, Italy

author

M. Caccia

• INFN Milano, via Celoria 16, 20133, Milano, Italy
• Department of Science, University of Insubria, Via Valleggio 11, 22100 Como, Italy

author

R. Caravita

• Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy
• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

F. Castelli

• INFN Milano, via Celoria 16, 20133, Milano, Italy
• Department of Physics, University of Milano, via Celoria 16, 20133 Milano, Italy

author

G. Cerchiari

• Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany

author

D. Comparat

• Laboratoire Aime Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay,91405 Orsay Cedex, France

author

A. Demetrio

• Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany

author

L. Di Noto

• Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy

author

M. Doser

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

C. Evans

• Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

M. Fanì

• Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy
• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

R. Ferragut

• Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

J. Fesel

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

A. Fontana

• INFN Pavia, via Bassi 6, 27100 Pavia, Italy

author

S. Gerber

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

M. Giammarchi

• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

A. Gligorova

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

author

F. Guatieri

• Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy
• TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento, Italy

author

S. Haider

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

A. Hinterberger

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

H. Holmestad

• Department of Physics, University of Oslo, Sem Slandsvei 24, 0371 Oslo, Norway

author

A. Kellerbauer

• Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany

author

O. Khalidova

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

D. Krasnicky

• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy

author

V. Lagomarsino

• Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy

author

P. Lansonneur

• Institute of Nuclear Physics, CNRS/IN2p3, University of Lyon 1, 69622 Villeurbanne, France

author

P. Lebrun

• Institute of Nuclear Physics, CNRS/IN2p3, University of Lyon 1, 69622 Villeurbanne, France

author

C. Malbrunot

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria
• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

S. Mariazzi

• INFN Padova, via Marzolo 8, 35131 Padova, Italy

author

J. Marton

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

author

V. Matveev

• Institute for Nuclear Research of the Russian Academy of Science, Moscow 117312, Russia
• Joint Institute for Nuclear Research, 141980 Dubna, Russia

author

Z. Mazzotta

• INFN Milano, via Celoria 16, 20133, Milano, Italy
• Department of Physics, University of Milano, via Celoria 16, 20133 Milano, Italy

author

S. Müller

• Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany

author

G. Nebbia

• INFN Padova, via Marzolo 8, 35131 Padova, Italy

author

P. Nedelec

• Institute of Nuclear Physics, CNRS/IN2p3, University of Lyon 1, 69622 Villeurbanne, France

author

M. Oberthaler

• Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany

author

N. Pacifico

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

D. Pagano

• Department of Mechanical and Industrial Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy
• INFN Pavia, via Bassi 6, 27100 Pavia, Italy

author

L. Penasa

• Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy
• TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento, Italy

author

V. Petracek

• Czech Technical University, Prague, Brehov 7, 11519 Prague 1, Czech Republic

author

F. Prelz

• INFN Milano, via Celoria 16, 20133, Milano, Italy

author

M. Prevedelli

• University of Bologna, Viale Berti Pichat 6/2, 40126 Bologna, Italy

author

L. Ravelli

• Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy
• TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento, Italy

author

B. Rienaecker

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

J. Robert

• Laboratoire Aime Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay,91405 Orsay Cedex, France

author

O. Røhne

• Department of Physics, University of Oslo, Sem Slandsvei 24, 0371 Oslo, Norway

author

A. Rotondi

• INFN Pavia, via Bassi 6, 27100 Pavia, Italy
• Department of Physics, University of Pavia, via Bassi 6, 27100 Pavia, Italy

author

H. Sandaker

• Department of Physics, University of Oslo, Sem Slandsvei 24, 0371 Oslo, Norway

author

R. Santoro

• INFN Milano, via Celoria 16, 20133, Milano, Italy
• Department of Science, University of Insubria, Via Valleggio 11, 22100 Como, Italy

author

L. Smestad

• Physics Department, CERN, 1211 Geneva 23, Switzerland
• The Research Council of Norway, P.O. Box 564, NO-1327 Lysaker, Norway

author

F. Sorrentino

• Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy

author

G. Testera

• INFN Genova, via Dodecaneso 33, 16146 Genova, Italy

author

I. Tietje

• Physics Department, CERN, 1211 Geneva 23, Switzerland

author

E. Widmann

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

author

P. Yzombard

• Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany

author

C. Zimmer

• Physics Department, CERN, 1211 Geneva 23, Switzerland
• Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany
• Department of Physics, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

author

J. Zmeskal

• Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

author

N. Zurlo

• INFN Pavia, via Bassi 6, 27100 Pavia, Italy
• Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, via Branze 43, 25123 Brescia, Italy

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Identifiers

DOI

10.12693/APhysPolA.132.1443