Zobrazeno 1 - 10 of 34 pro vyhledávání: '"M D Ashkezari"'
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Akademický článek
In situ electromagnetic field diagnostics with an electron plasma in a Penning–Malmberg trap
Autor: C Amole, M D Ashkezari, M Baquero-Ruiz, W Bertsche, E Butler, A Capra, C L Cesar, M Charlton, A Deller, N Evetts, S Eriksson, J Fajans, T Friesen, M C Fujiwara, D R Gill, A Gutierrez, J S Hangst, W N Hardy, M E Hayden, C A Isaac, S Jonsell, L Kurchaninov, A Little, N Madsen, J T K McKenna, S Menary, S C Napoli, K Olchanski, A Olin, P Pusa, C Ø Rasmussen, F Robicheaux, E Sarid, D M Silveira, C So, S Stracka, T Tharp, R I Thompson, D P van der Werf, J S Wurtele
Publikováno v: New Journal of Physics, Vol 16, Iss 1, p 013037 (2014)
We demonstrate a novel detection method for the cyclotron resonance frequency of an electron plasma in a Penning–Malmberg trap. With this technique, the electron plasma is used as an in situ diagnostic tool for the measurement of the static magneti
Externí odkaz: https://doaj.org/article/2196fc0c38714d09822a5c0421107da1
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2
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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4
Phosphate‐limited ocean regions select for bacterial populations enriched in the carbon–phosphorus lyase pathway for phosphonate degradation
Autor: Edward F. DeLong, Daniel J. Repeta, Oscar A. Sosa, M. D. Ashkezari, David M. Karl
Publikováno v: Environmental Microbiology
Summary In tropical and subtropical oceanic surface waters phosphate scarcity can limit microbial productivity. However, these environments also have bioavailable forms of phosphorus incorporated into dissolved organic matter (DOM) that microbes with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76ef9a3ab81bef3052671cd01288e1fd
https://doi.org/10.1111/1462-2920.14628
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5
Antihydrogen detection in ALPHA
Autor: A. Olin, William Bertsche, E. Sarid, P. J. Nolan, M. C. Fujiwara, Richard Hydomako, Niels Madsen, Eoin Butler, Robert Thompson, A. Povilus, M. E. Hayden, Claudo Lenz Cesar, M. D. Ashkezari, Leonid Kurchaninov, M. Charlton, K. Olchanski, Marcelo Baquero-Ruiz, Francis Robicheaux, Steve Chapman, D. R. Gill, Jonathan Wurtele, J. S. Hangst, A. J. Humphries, P. D. Bowe, W. N. Hardy, Svante Jonsell, Petteri Pusa, S. Menary, T. Friesen, Dirk Peter van der Werf, Chukman So, Gorm Bruun Andresen, D. M. Silveira, James William Storey, Ryugo S. Hayano, Yasunori Yamazaki, Joel Fajans
Publikováno v: Hydomako, R, Andresen, G B, Ashkezari, M D, Baquero-Ruiz, M, Bertsche, W, Butler, E, Bowe, P D, Cesar, C L, Chapman, S, Charlton, M, Fajans, J, Friesen, T, Fujiwara, M C, Gill, D R, Hangst, J S, Hardy, W N, Hayano, R S, Hayden, M E, Humphries, A J, Jonsell, S, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, D M, So, C, Storey, J W, Thompson, R I, van der Werf, D P, Wurtele, J S & Yamazaki, Y 2012, ' Antihydrogen detection in ALPHA ', Hyperfine Interactions, vol. 212, no. 1-3, pp. 91-99 . https://doi.org/10.1007/s10751-011-0456-8
The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::632b946b8be715d21c26ae43dbd1bc5a
https://doi.org/10.1007/s10751-011-0456-8
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6
Progress towards microwave spectroscopy of trapped antihydrogen
Autor: Yasunori Yamazaki, Ryugo S. Hayano, Lenoid Kurchaninov, A. Povilus, A. Olin, Richard Hydomako, K. Olchanski, Joel Fajans, M. C. Fujiwara, Niels Madsen, M. D. Ashkezari, Robert Thompson, Adam Deller, J. S. Hangst, Wil Bertsche, M. Charlton, Eoin Butler, T. Friesen, D. M. Silveira, Dirk Peter van der Werf, Stefan Eriksson, James William Storey, Jonathan Wurtele, E. Sarid, P. J. Nolan, Francis Robicheaux, P. D. Bowe, Michael E. Hayden, Walter Hardy, S. Menary, Steve Chapman, C. L. Cesar, Gorm Bruun Andresen, Chukman So, Dave R. Gill, Marcelo Baquero-Ruiz, Andrea Gutierrez, Petteri Pusa, A. J. Humphries, Svante Jonsell
Publikováno v: Ashkezari, M D, Bruun Andresen, G, 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, Hayano, R S, Hayden, M E, Humphries, A J, Hydomako, R, Jonsell, S, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, D M, So, C, Storey, J W, Thompson, R I, van der Werf, D P, Wurtele, J S & Yamazaki, Y 2011, ' Progress towards microwave spectroscopy of trapped antihydrogen ', Hyperfine Interactions . https://doi.org/10.1007/s10751-011-0449-7
Precision comparisons of hyperfine intervals in atomic hydrogen and antihydrogen are expected to yield experimental tests of the CPT theorem. The CERN-based ALPHA collaboration has initiated a program of study focused on microwave spectroscopy of tra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac44a08ac0245f4eeb374fe67e17cb3f
https://doi.org/10.1007/s10751-011-0449-7
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7
Trapped antihydrogen
Autor: D. R. Gill, Michael E. Hayden, Marcelo Baquero-Ruiz, Andrea Gutierrez, Petteri Pusa, P. J. Nolan, Yasunori Yamazaki, K. Olchanski, Robert Thompson, M. J. Jenkins, M. D. Ashkezari, Leonid Kurchaninov, William Bertsche, Richard Hydomako, M. Charlton, P. D. Bowe, Eoin Butler, A. J. Humphries, Jonathan Wurtele, J. S. Hangst, L. V. Jørgensen, S. Seif El Nasr, Joel Fajans, A. Deller, S. L. Kemp, Svante Jonsell, A. Povilus, A. Olin, D. P. van der Werf, Francis Robicheaux, James William Storey, C. Ø. Rasmussen, Niels Madsen, D. M. Silveira, Stefan Eriksson, Walter Hardy, C. L. Cesar, Gorm Bruun Andresen, T. Friesen, Scott Chapman, M. C. Fujiwara, S. Menary, Chukman So, E. Sarid
Publikováno v: Butler, E, Bruun Andresen, G, Ashkezari, M D, Baquero-Ruiz, M, Bertsche, W, Bowe, P D, 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, Jørgensen, L V, Kemp, S L, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Rasmussen, C Ø, Robicheaux, F, Sarid, E, Seif el Nasr, S, Silveira, D M, So, C, Storey, J W, Thompson, R I, van der Werf, D P, Wurtele, J S & Yamazaki, Y 2011, ' Trapped antihydrogen ', Hyperfine Interactions . https://doi.org/10.1007/s10751-011-0396-3
Precision spectroscopic comparison of hydrogen and antihydrogen holds the promise of a sensitive test of the Charge-Parity-Time theorem and matter-antimatter equivalence. The clearest path towards realising this goal is to hold a sample of antihydrog
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b4bbd1d206a3d3b6e84b0fa2a82de78
https://doi.org/10.1007/s10751-011-0396-3
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8
Antihydrogen formation by autoresonant excitation of antiproton plasmas
Autor: T. Friesen, Marcelo Baquero-Ruiz, Andrea Gutierrez, P. J. Nolan, Michael E. Hayden, Robert Thompson, A. Povilus, J. S. Hangst, K. Olchanski, Francis Robicheaux, M. D. Ashkezari, Leonid Kurchaninov, P. T. Carpenter, J. L. Hurt, D. P. van der Werf, Niels Madsen, M. Charlton, Richard Hydomako, D. R. Gill, S. Menary, Jonathan Wurtele, P. D. Bowe, James William Storey, Chukman So, D. M. Silveira, Steve Chapman, William Bertsche, E. Sarid, Stefan Eriksson, Ryugo S. Hayano, A. Olin, Eoin Butler, Walter Hardy, A. J. Humphries, Svante Jonsell, Yasunori Yamazaki, Petteri Pusa, Joel Fajans, M. C. Fujiwara, C. L. Cesar, Gorm Bruun Andresen
Publikováno v: Bertsche, W A, Andresen, G B, Ashkezari, M D, Baquero-Ruiz, M, Bowe, P D, Carpenter, P T, Butler, E, Cesar, C L, Chapman, S F, Charlton, M, Eriksson, S, Fajans, J, Friesen, T, Fujiwara, M C, Gill, D R, Gutierrez, A, Hangst, J S, Hardy, W N, Hayano, R S, Hayden, M E, Humphries, A J, Hurt, J L, Hydomako, R, Jonsell, S, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, D M, So, C, Storey, J W, Thompson, R I, van der Werf, D P, Wurtele, J S & Yamazaki, Y 2012, ' Antihydrogen formation by autoresonant excitation of antiproton plasmas ', Hyperfine Interactions, vol. 212, no. 1-3, pp. 61-67 . https://doi.org/10.1007/s10751-011-0383-8
In efforts to trap antihydrogen, a key problem is the vast disparity between the neutral trap energy scale (\(\sim\!50\,\upmu\mathrm{eV}\)), and the energy scales associated with plasma confinement and space charge (~1 eV). In order to merge charged
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6414ae25eea8240b4db2ddca3fdaaa68
https://doi.org/10.1007/s10751-011-0383-8
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