Zobrazeno 1 - 10 of 123 pro vyhledávání: '"Joel Fajans"'
1
Limit on the electric charge of antihydrogen
Autor: D. P. van der Werf, A. Little, M. E. Hayden, K. Olchanski, T. D. Tharp, Petteri Pusa, Joel Fajans, S. Menary, Z. Vendeiro, A. E. Charman, A. Capra, William Bertsche, M. D. Ashkezari, Leonid Kurchaninov, Marcelo Baquero-Ruiz, Andrea Gutierrez, Chukman So, Svante Jonsell, M. Charlton, Andrey Zhmoginov, S. C. Napoli, Eoin Butler, E. Sarid, Stefan Eriksson, P. J. Nolan, A. Olin, Jonathan Wurtele, D. M. Silveira, D. R. Gill, C. L. Cesar, J. S. Hangst, C. Amole, Francis Robicheaux, M. C. Fujiwara, W. N. Hardy, J. T. K. McKenna, T. Friesen, C. A. Isaac, Robert Thompson, A. Povilus
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
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3
Efficient calculations of magnetic fields of solenoids for simulations
Autor: Peter Granum, Magnus Linnet Madsen, Joseph Tiarnan Kerr McKenna, Danielle Louise Hodgkinson, Joel Fajans
Publikováno v: Granum, P, Madsen, M L, McKenna, J T K, Hodgkinson, D L & Fajans, J 2022, ' Efficient calculations of magnetic fields of solenoids for simulations ', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1034, 166706 . https://doi.org/10.1016/j.nima.2022.166706
This paper examines different models for calculating the magnetic field of solenoids. Accuracy and computation time are compared for a range of different simplified models: a current loop and a thin shell solenoid, and solenoids with finite length an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbae6c64b2b1aeb4559373159ade9565
https://doi.org/10.1016/j.nima.2022.166706
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4
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
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6
Plasma Temperature Measurement with a Silicon Photomultiplier (SiPM)
Autor: Eric Hunter, C. Sierra, D. Zimmer, Joel Fajans, N. A. Lewis, Chukman So, A. Povilus
The temperature of a nonneutral plasma confined in a Penning-Malmberg trap can be determined by slowly lowering one side of the trap's electrostatic axial confinement barrier; the temperature is inferred from the rate at which particles escape the tr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85aac21ac4175340a04a6f5c4df962a1
http://arxiv.org/abs/2002.11216
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7
Electron Cyclotron Resonance (ECR) Magnetometry with a Plasma Reservoir
Autor: Eugene Kur, Jonathan Wurtele, A. Christensen, Joel Fajans, Eric Hunter, T. Friesen
The local magnetic field in a Penning-Malmberg trap is found by measuring the temperatures that result when electron plasmas are illuminated by microwaves pulses. Multiple heating resonances are observed as the pulse frequencies are swept. The many r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86435740736e5c018d95446e6796b794
http://arxiv.org/abs/1912.04358
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8
Observation of the 1S–2P Lyman-α transition in antihydrogen
Autor: Sandra C. Jones, Takamasa Momose, G. Stutter, Robert Thompson, M. C. Fujiwara, A. Khramov, Svante Jonsell, D. M. Starko, C. Carruth, C. J. Baker, J. J. Munich, R. L. Sacramento, Petteri Pusa, M. E. Hayden, P. Knapp, N. Evetts, M. A. Johnson, J. M. Jones, D. P. van der Werf, C. L. Cesar, M. Ahmadi, Francis Robicheaux, C. Ø. Rasmussen, K. Olchanski, Jonathan Wurtele, J. T. K. McKenna, Niels Madsen, T. D. Tharp, D. M. Silveira, M. Sameed, S. Cohen, Eric Hunter, A. Olin, A. Capra, D. R. Gill, S. Menary, R. Collister, William Bertsche, Chukman So, D. Maxwell, E. Sarid, Stefan Eriksson, T. Friesen, C. A. Isaac, Leonid Kurchaninov, M. Charlton, J. S. Hangst, W. N. Hardy, A. Evans, Joel Fajans, J. M. Michan, B. X. R. Alves
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
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9
Antihydrogen accumulation for fundamental symmetry tests
Autor: Robert Thompson, S. Cohen, D. M. Silveira, A. Olin, Leonid Kurchaninov, M. Charlton, N. Evetts, M. Mathers, M. Ahmadi, J. M. Michan, Andrea Gutierrez, D. P. van der Werf, T. D. Tharp, D. R. Gill, Sandra C. Jones, R. Collister, C. Carruth, T. Friesen, Jonathan Wurtele, Niels Madsen, C. A. Isaac, J. J. Munich, K. Olchanski, R. L. Sacramento, Takamasa Momose, S. Menary, Akizumi Ishida, S. Stracka, M. Sameed, D. Maxwell, E. Sarid, Stefan Eriksson, A. Capra, P. J. Nolan, Petteri Pusa, G. Stutter, William Bertsche, Chukman So, Svante Jonsell, J. E. Thompson, M. C. Fujiwara, Eoin Butler, C. L. Cesar, Joel Fajans, A. Evans, M. E. Hayden, M. A. Johnson, J. S. Hangst, W. N. Hardy, B. X. R. Alves, C. J. Baker, Francis Robicheaux, C. Ø. Rasmussen, J. T. K. McKenna
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
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