Výsledky vyhledávání

Limit on the electric charge of antihydrogen

Publikováno v: Capra, A, Amole, C, Ashkezari, M D, Baquero-Ruiz, M, Bertsche, W, Butler, E, 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, McKenna, J T K, Menary, S, Napoli, S C, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, D M, So, C, Tharp, T D, Thompson, R I, Van der Werf, D P, Vendeiro, Z, Wurtele, J S, Zhmoginov, A I & Charman, A E 2017, ' Limit on the electric charge of antihydrogen ', Hyperfine Interactions, vol. 238, 9 . https://doi.org/10.1007/s10751-016-1382-6

The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, $\overline{\mathrm{H}}$. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiato

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b9a8efb8936799f19a83cffb02fefc4
http://cds.cern.ch/record/2274860

Zobrazit plný text záznamu

Author Correction: Investigation of the fine structure of antihydrogen

Publikováno v: Nature
Nature, vol 594, iss 7861

At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fine structure of atomic hydrogen: a separation of the 2S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c6b862169f66eeb37e5b727780d21d

Zobrazit plný text záznamu

Laser cooling of antihydrogen atoms

Autor: C. L. Cesar, J. Peszka, D. Maxwell, E. Sarid, Stefan Eriksson, A. Olin, K. Olchanski, William Bertsche, G. Stutter, Leonid Kurchaninov, M. Charlton, M. C. Fujiwara, M. Sameed, Eric Hunter, A. Evans, A. Capra, J. J. Munich, J. T. K. McKenna, D. Hodgkinson, P. S. Mullan, P. Granum, A. Thibeault, J. M. Jones, J. S. Hangst, J. M. Michan, Michael E. Hayden, S. Menary, A. Cridland Mathad, D. P. van der Werf, S. A. Jones, N. Evetts, Chukman So, Niels Madsen, D. R. Gill, D. M. Silveira, A. Khramov, A. Christensen, Jonathan Wurtele, Walter Hardy, P. Knapp, C. Carruth, Joel Fajans, A. Powell, T. D. Tharp, T. Friesen, C. Ø. Rasmussen, C. A. Isaac, Francis Robicheaux, Takamasa Momose, R. L. Sacramento, M. A. Johnson, R. Collister, Robert Thompson, P. Grandemange, Svante Jonsell, D. M. Starko, Petteri Pusa, C. J. Baker

Publikováno v: Baker, C J, Bertsche, W, Capra, A, Carruth, C, Cesar, C L, Charlton, M, Christensen, A, Collister, R, Mathad, A C, Eriksson, S, Evans, A, Evetts, N, Fajans, J, Friesen, T, Fujiwara, M C, Gill, D R, Grandemange, P, Granum, P, Hangst, J S, Hardy, W N, Hayden, M E, Hodgkinson, D, Hunter, 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, Michan, J M, Momose, T, Mullan, P S, Munich, J J, Olchanski, K, Olin, A, Peszka, J, Powell, A, Pusa, P, Rasmussen, C, Robicheaux, F, Sacramento, R L, Sameed, M, Sarid, E, Silveira, D M, Starko, D M, So, C, Stutter, G, Tharp, T D, Thibeault, A, Thompson, R I, van der Werf, D P & Wurtele, J S 2021, ' Laser cooling of antihydrogen atoms ', Nature, vol. 592, no. 7852, pp. 35-42 . https://doi.org/10.1038/s41586-021-03289-6
NATURE
Nature
ALPHA Collaboration 2021, ' Laser cooling of antihydrogen atoms ', Nature: international weekly journal of science, vol. 592, no. 7852, pp. 35-42 . https://doi.org/10.1038/s41586-021-03289-6
Nature, vol 592, iss 7852

The photon—the quantum excitation of the electromagnetic field—is massless but carries momentum. A photon can therefore exert a force on an object upon collision1. Slowing the translational motion of atoms and ions by application of such a force2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14546feda12fa3318c43875b6ae76824
https://pure.au.dk/portal/da/publications/laser-cooling-of-antihydrogen-atoms(e9a0c501-4c41-4aa1-a297-fd90d8150d1a).html

Zobrazit plný text záznamu

Performance check of the CsI(Tl) calorimeter for the J-PARC E36 experiment by observing e+ from muon decay

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 901:1-5

The J-PARC E36 experiment is searching for lepton universality violation with a stopped kaon beam by measuring the ratio of the K + decay widths Γ ( K e 2 ) ∕ Γ ( K μ 2 ) = Γ ( K + → e + ν e ) ∕ Γ ( K + → μ + ν μ ) . Since the radiat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b81a8d9f902238f5736376901eb9716
https://doi.org/10.1016/j.nima.2018.05.065

Zobrazit plný text záznamu

Observation of the 1S–2P Lyman-α transition in antihydrogen

Publikováno v: Nature
Nature, 2018, 561 (7722), pp.211-215. ⟨10.1038/s41586-018-0435-1⟩
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, Hunter, E D, 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, Michan, J M, 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, Starko, D M, Stutter, G, So, C, Tharp, T D, Thompson, R I, van der Werf, D P & Wurtele, J S 2018, ' Observation of the 1S-2P Lyman-alpha transition in antihydrogen ', Nature, vol. 561, no. 7722, pp. 211-+ . https://doi.org/10.1038/s41586-018-0435-1
Nature, vol 561, iss 7722
Bertsche, W, Ahmadi, M, Alves, B X R, Baker, C J, 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 2018, ' Observation of the 1S-2P Lyman-alpha transition in antihydrogen ', Nature-London-, vol. 561, no. 7722, 7722, pp. 211-215 . https://doi.org/10.1038/s41586-018-0435-1

In 1906, Theodore Lyman discovered his eponymous series of transitions in the extreme-ultraviolet region of the atomic hydrogen spectrum1,2. The patterns in the hydrogen spectrum helped to establish the emerging theory of quantum mechanics, which we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1ae9435b035facc15b974fcf756610d
https://doi.org/10.1038/s41586-018-0435-1

Zobrazit plný text záznamu

Antihydrogen accumulation for fundamental symmetry tests

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
NATURE COMMUNICATIONS
Ahmadi, M, Alves, B X R, Baker, C J, Bertsche, W, Butler, E, 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, Gutierrez, A, Hangst, J S, Hardy, W N, Hayden, M E, Isaac, C A, Ishida, A, Johnson, M A, Jones, S A, Jonsell, S, Kurchaninov, L, Madsen, N, Mathers, M, Maxwell, D, McKenna, J T K, Menary, S, Michan, J M, Momose, T, Munich, J J, Nolan, P, Olchanski, K, Olin, A, Pusa, P, Rasmussen, C O, Robicheaux, F, Sacramento, R L, Sameed, M, Sarid, E, Silveira, D M, Stracka, S, Stutter, G, So, C, Tharp, T D, Thompson, J E, Thompson, R I, van der Werf, D P & Wurtele, J S 2017, ' Antihydrogen accumulation for fundamental symmetry tests ', Nature Communications, vol. 8, 681 . https://doi.org/10.1038/s41467-017-00760-9
Nature communications, vol 8, iss 1
Nature Communications
Ahmadi, M, Alves, B X R, Baker, C J, Bertsche, W, Butler, E, 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, Gutierrez, A, Hangst, J S, Hardy, W N, Hayden, M E, Isaac, C A, Ishida, A, Johnson, M A, Jones, S A, Jonsell, S, Kurchaninov, L, Madsen, N, Mathers, M, Maxwell, D, McKenna, J T K, Menary, S, Michan, J M, Momose, T, Munich, J J, Nolan, P, Olchanski, K, Olin, A, Pusa, P, Rasmussen, C O, Robicheaux, F, Sacramento, R L, Sameed, M, Sarid, E, Silveira, D M, Stracka, S, Stutter, G, So, C, Tharp, T D, Thompson, J E, Thompson, R I, Van Der Werf, D P & Wurtele, J S 2017, ' Antihydrogen accumulation for fundamental symmetry tests ', Nature Communications, vol. 8, no. 1, 681 . https://doi.org/10.1038/s41467-017-00760-9

Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are drivin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1bfaa65c7ab0460a3164997a300765c
https://doaj.org/article/9e85815eade843d6bbb9a2dec5705275

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání