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CERN Document Server 2,049 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.42 segons. 
1.
(100)
Discriminating between antihydrogen and mirror-trapped antiprotons in a minimum-B trap / Amole, C (York U., Canada) ; Andresen, G B (Aarhus U.) ; Ashkezari, M D (Simon Fraser U.) ; Baquero-Ruiz, M (UC, Berkeley) ; Bertsche, W (Swansea U.) ; Butler, E (Swansea U. ; CERN) ; Cesar, C L (Rio de Janeiro Federal U.) ; Chapman, S (UC, Berkeley) ; Charlton, M (Swansea U.) ; Deller, A (Swansea U.) et al.
Recently, antihydrogen atoms were trapped at CERN in a magnetic minimum (minimum-B) trap formed by superconducting octupole and mirror magnet coils. The trapped antiatoms were detected by rapidly turning off these magnets, thereby eliminating the magnetic minimum and releasing any antiatoms contained in the trap. [...]
arXiv:1201.3944.- 2012 - 35 p. - Published in : New J. Phys. 14 (2012) 105010 External link: Preprint
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2.
(91)
Antimatter Plasmas in a Multipole Trap for Antihydrogen / ALPHA Collaboration
We have demonstrated storage of plasmas of the charged constituents of the antihydrogen atom, antiprotons and positrons, in a Penning trap surrounded by a minimum-B magnetic trap designed for holding neutral antiatoms. The neutral trap comprises a superconducting octupole and two superconducting, solenoidal mirror coils. [...]
2007 - 4 p. - Published in : Phys. Rev. Lett. 98 (2007) 023402
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3.
(57)
Antihydrogen formation dynamics in a multipolar neutral anti-atom trap / ALPHA Collaboration
Antihydrogen production in a neutral atom trap formed by an octupole-based magnetic field minimum is demonstrated using field-ionization of weakly bound anti-atoms. Using our unique annihilation imaging detector, we correlate antihydrogen detection by imaging and by field-ionization for the first time. [...]
arXiv:1002.3036.- 2010 - 5 p. - Published in : Phys. Lett. B 685 (2010) 141 Fulltext: arXiv:1002.3036 - PDF; S0370269310001371 - XML; External link: Preprint
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4.
(52)
Alternative method for reconstruction of antihydrogen annihilation vertices / ALPHA Collaboration
The ALPHA experiment, located at CERN, aims to compare the properties of antihydrogen atoms with those of hydrogen atoms. The neutral antihydrogen atoms are trapped using an octupole magnetic trap. [...]
2012 - Published in : Hyperfine Interact. 212 (2012) 101-107
In : 10th international conference on the topic of Low Energy Antiproton Physics, TRIUMF, Vancouver, Canada, 27 Apr - 5 May 2011, pp.101-107
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5.
(49)
Trapped antihydrogen / ALPHA Collaboration
Antimatter was first predicted in 1931, by Dirac. Work with highenergy antiparticles is now commonplace, and anti-electrons are used regularly in the medical technique of positron emission tomography scanning. [...]
2010 - Published in : Nature 468 (2010) 673-676
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6.
(48)
Production of antihydrogen at reduced magnetic field for anti-atom trapping / ALPHA Collaboration
We have demonstrated production of antihydrogen in a 1$,$T solenoidal magnetic field. This field strength is significantly smaller than that used in the first generation experiments ATHENA (3$,$T) and ATRAP (5$,$T). [...]
arXiv:0807.0220.- 2008 - 5 p. - Published in : J. Phys. B 41 (2008) 011001 Fulltext: PDF; External link: Preprint
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7.
(48)
Antihydrogen accumulation for fundamental symmetry tests / Ahmadi, M (Liverpool U.) ; Alves, B X R (Aarhus U.) ; Baker, C J (Swansea U.) ; Bertsche, W (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Butler, E (CERN) ; Capra, A (TRIUMF) ; Carruth, C (UC, Berkeley) ; Cesar, C L (Rio de Janeiro Federal U.) ; Charlton, M (Swansea U.) ; Cohen, S (Ben Gurion U. of Negev) et al.
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. [...]
2017 - 6 p. - Published in : Nature Commun. 8 (2017) 681 Fulltext: PDF;
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8.
(47)
Antihydrogen annihilation reconstruction with the ALPHA silicon detector / Andresen, G B (Aarhus U.) ; Ashkezari, M D (Simon Fraser U.) ; Bertsche, W (Swansea U.) ; Bowe, P D (Aarhus U.) ; Butler, E (CERN) ; Cesar, C L (Rio de Janeiro Federal U.) ; Chapman, S (UC, Berkeley) ; Charlton, M (Swansea U.) ; Deller, A (Swansea U.) ; Eriksson, S (Swansea U.) et al.
The ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. [...]
2012 - Published in : Nucl. Instrum. Methods Phys. Res., A 684 (2012) 73-81
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9.
(46)
Trapped antihydrogen / ALPHA Collaboration
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 antihydrogen in an atomic trap for interrogation by electromagnetic radiation. [...]
2012 - Published in : Hyperfine Interact. 212 (2012) 15-29
In : 10th international conference on the topic of Low Energy Antiproton Physics, TRIUMF, Vancouver, Canada, 27 Apr - 5 May 2011, pp.15-29
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10.
(46)
Investigation of the fine structure of antihydrogen / ALPHA Collaboration
At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fne structure of atomic hydrogen: a separation of the 2S$_{1/2}$ and 2P$_{1/2}$ states1. The observation of this separation, now known as the Lamb shift, marked an important event in the evolution of modern physics, inspiring others to develop the theory of quantum electrodynamics2–5. [...]
2020 - 10 p. - Published in : Nature 578 (2020) 375-380 Fulltext: PDF; External links: INTERACTIONS; Nature News and Views article
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