Comparison of classical and quantum models of anti-hydrogen formation through charge exchange

被引：18

作者：

Krasnicky, D. ^{[1
]}

Testera, G. ^{[1
]}

Zurlo, N. ^{[2
,3
]}

机构：

[1] Ist Nazl Fis Nucl INFN Genova, Via Dodecaneso 33, I-16146 Genoa, Italy

[2] INFN Pavia, Via Bassi 6, I-27100 Pavia, Italy

[3] Univ Brescia, Dept Civil Environm Architectural Engn & Math, Via Branze 43, I-25123 Brescia, Italy

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2019年 / 52卷 / 11期

关键词：

anti-hydrogen; charge exchange; quantum suppression; ELECTRON LOSS; ATOMS; BEAM;

D O I：

10.1088/1361-6455/ab1151

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare classical and quantum predictions of the cross section for anti-hydrogen formation by charge exchange between Rydberg positronium and antiprotons as a function of the positronium energy. We show that these two highly different approaches furnish the same scaling law with the principal quantum number of positronium n(ps) and numerical values in agreement within some tens of percent for n(Ps) >= 3 and down to very low collision energy of tens of mu eV. We discuss these results in the context of a recently claimed hypothesis of quantum suppression of the reaction driven by supposedly different scaling law of classical and quantum predictions. Finally we underline how the basic agreement between classical and quantum results enforces the reliability of the classical calculations that, presently, are the only ones able to obtain the cross section for positronium initially in high Rydberg states and in the presence of external electric and magnetic fields.

引用

页数：8

共 27 条

[1] CLASSICAL THEORY OF CHARGE TRANSFER AND IONIZATION OF HYDROGEN ATOMS BY PROTONS [J].

ABRINES, R ;

PERCIVAL, IC .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1966, 88 (562P) :861-&

[2] A GENERALIZED CORRESPONDENCE PRINCIPLE AND PROTON-HYDROGEN COLLISIONS [J].

ABRINES, R ;

PERCIVAL, IC .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1966, 88 (562P) :873-&

[3] Laser excitation of the n=3 level of positronium for antihydrogen production [J].

Aghion, S. ;

Amsler, C. ;

Ariga, A. ;

Ariga, T. ;

Bonomi, G. ;

Braunig, P. ;

Bremer, J. ;

Brusa, R. S. ;

Cabaret, L. ;

Caccia, M. ;

Caravita, R. ;

Castelli, F. ;

Cerchiari, G. ;

Chlouba, K. ;

Cialdi, S. ;

Comparat, D. ;

Consolati, G. ;

Demetrio, A. ;

Di Noto, L. ;

Doser, M. ;

Dudarev, A. ;

Ereditato, A. ;

Evans, C. ;

Ferragut, R. ;

Fesel, J. ;

Fontana, A. ;

Forslund, O. K. ;

Gerber, S. ;

Giammarchi, M. ;

Gligorova, A. ;

Gninenko, S. ;

Guatieri, F. ;

Haider, S. ;

Holmestad, H. ;

Huse, T. ;

Jernelv, I. L. ;

Jordan, E. ;

Kellerbauer, A. ;

Kimura, M. ;

Koettig, T. ;

Krasnicky, D. ;

Lagomarsino, V. ;

Lansonneur, P. ;

Lebrun, P. ;

Lehner, S. ;

Liberadzka, J. ;

Malbrunot, C. ;

Mariazzi, S. ;

Marx, L. ;

Matveev, V. .

PHYSICAL REVIEW A, 2016, 94 (01)

[4] Characterization of the 1S-2S transition in antihydrogen [J].

Ahmadi, M. ;

Alves, B. X. R. ;

Baker, C. J. ;

Bertsche, W. ;

Capra, A. ;

Carruth, C. ;

Cesar, C. L. ;

Charlton, M. ;

Cohen, S. ;

Collister, R. ;

Eriksson, S. ;

Evans, A. ;

Evetts, N. ;

Fajans, J. ;

Friesen, T. ;

Fujiwara, M. C. ;

Gill, D. R. ;

Hangst, J. S. ;

Hardy, W. N. ;

Hayden, M. E. ;

Isaac, C. A. ;

Johnson, M. A. ;

Jones, J. M. ;

Jones, S. A. ;

Jonsell, S. ;

Khramov, A. ;

Knapp, P. ;

Kurchaninov, L. ;

Madsen, N. ;

Maxwell, D. ;

McKenna, J. T. K. ;

Menary, S. ;

Momose, T. ;

Munich, J. J. ;

Olchanski, K. ;

Olin, A. ;

Pusa, P. ;

Rasmussen, C. O. ;

Robicheaux, F. ;

Sacramento, R. L. ;

Sameed, M. ;

Sarid, E. ;

Silveira, D. M. ;

Stutter, G. ;

So, C. ;

Tharp, T. D. ;

Thompson, R. I. ;

van der Werf, D. P. ;

Wurtele, J. S. .

NATURE, 2018, 557 (7703) :71-+

[5] Production and detection of cold antihydrogen atoms [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, P ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Collier, MJT ;

Doser, M ;

Filippini, V ;

Fine, KS ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Holzscheiter, MH ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lindelöf, D ;

Rizzini, EL ;

Macri, M ;

Madsen, N ;

Manuzio, G ;

Marchesotti, M ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rochet, J ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

Variola, A ;

Watson, TL ;

van der Werf, DP .

NATURE, 2002, 419 (6906) :456-459

[6] Trapped antihydrogen [J].

Andresen, G. B. ;

Ashkezari, M. D. ;

Baquero-Ruiz, M. ;

Bertsche, W. ;

Bowe, P. D. ;

Butler, E. ;

Cesar, C. L. ;

Chapman, S. ;

Charlton, M. ;

Deller, A. ;

Eriksson, S. ;

Fajans, J. ;

Friesen, T. ;

Fujiwara, M. C. ;

Gill, D. R. ;

Gutierrez, A. ;

Hangst, J. S. ;

Hardy, W. N. ;

Hayden, M. E. ;

Humphries, A. J. ;

Hydomako, R. ;

Jenkins, M. J. ;

Jonsell, S. ;

Jorgensen, L. V. ;

Kurchaninov, L. ;

Madsen, N. ;

Menary, S. ;

Nolan, P. ;

Olchanski, K. ;

Olin, A. ;

Povilus, A. ;

Pusa, P. ;

Robicheaux, F. ;

Sarid, E. ;

el Nasr, S. Seif ;

Silveira, D. M. ;

So, C. ;

Storey, J. W. ;

Thompson, R. I. ;

van der Werf, D. P. ;

Wurtele, J. S. ;

Yamazaki, Y. .

NATURE, 2010, 468 (7324) :673-U1

[7] ANTIHYDROGEN PRODUCTION IN COLLISIONS OF ANTIPROTONS WITH EXCITED-STATES OF POSITRONIUM [J].

CHARLTON, M .

PHYSICS LETTERS A, 1990, 143 (03) :143-146

[8] Description and first application of a new technique to measure the gravitational mass of antihydrogen [J].

Charman, A. E. ;

Amole, C. ;

Ashkezari, M. D. ;

Baquero-Ruiz, M. ;

Bertsche, W. ;

Butler, E. ;

Capra, A. ;

Cesar, C. L. ;

Charlton, M. ;

Eriksson, S. ;

Fajans, J. ;

Friesen, T. ;

Fujiwara, M. C. ;

Gill, D. R. ;

Gutierrez, A. ;

Hangst, J. S. ;

Hardy, W. N. ;

Hayden, M. E. ;

Isaac, C. A. ;

Jonsell, S. ;

Kurchaninov, L. ;

Little, A. ;

Madsen, N. ;

McKenna, J. T. K. ;

Menary, S. ;

Napoli, S. C. ;

Nolan, P. ;

Olin, A. ;

Pusa, P. ;

Rasmussen, C. O. ;

Robicheaux, F. ;

Sarid, E. ;

Silveira, D. M. ;

So, C. ;

Thompson, R. I. ;

van der Werf, D. P. ;

Wurtele, J. S. ;

Zhmoginov, A. I. .

NATURE COMMUNICATIONS, 2013, 4

[9] CLASSICAL PHASE-SPACE DISTRIBUTIONS FOR ATOMIC-HYDROGEN COLLISIONS [J].

COHEN, JS .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (09) :1759-1769

[10] Exploring the WEP with a pulsed cold beam of antihydrogen [J].

Doser, M. ;

Amsler, C. ;

Belov, A. ;

Bonomi, G. ;

Braeunig, P. ;

Bremer, J. ;

Brusa, R. ;

Burkhart, G. ;

Cabaret, L. ;

Canali, C. ;

Castelli, F. ;

Chlouba, K. ;

Cialdi, S. ;

Comparat, D. ;

Consolati, G. ;

Di Noto, L. ;

Donzella, A. ;

Dudarev, A. ;

Eisel, T. ;

Ferragut, R. ;

Ferrari, G. ;

Fontana, A. ;

Genova, P. ;

Giammarchi, M. ;

Gligorova, A. ;

Gninenko, S. ;

Haider, S. ;

Hansen, J. P. ;

Hogan, S. ;

Jorgensen, L. ;

Kaltenbacher, T. ;

Kellerbauer, A. ;

Krasnicky, D. ;

Lagomarsino, V. ;

Mariazzi, S. ;

Matveev, V. ;

Merkt, F. ;

Moia, F. ;

Nebbia, G. ;

Nedelec, P. ;

Oberthaler, M. ;

Perini, D. ;

Petracek, V. ;

Prelz, F. ;

Prevedelli, M. ;

Regenfus, C. ;

Riccardi, C. ;

Rohne, O. ;

Rotondi, A. ;

Sacerdoti, M. .

CLASSICAL AND QUANTUM GRAVITY, 2012, 29 (18)

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