CERN Accelerating science

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1.
Search For Trapped Antihydrogen / ALPHA Collaboration
We present the results of an experiment to search for trapped antihydrogen atoms with the ALPHA antihydrogen trap at the CERN Antiproton Decelerator. Sensitive diagnostics of the temperatures, sizes, and densities of the trapped antiproton and positron plasmas have been developed, which in turn permitted development of techniques to precisely and reproducibly control the initial experimental parameters. [...]
arXiv:1012.4110.- 2011 - 12 p. - Published in : Phys. Lett. B 695 (2011) 95-104 Fulltext: PDF; External link: Preprint
2.
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
3.
Physics with antihydrogen / Bertsche, W A (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Butler, E (Imperial Coll., London) ; Charlton, M (Swansea U.) ; Madsen, N (Swansea U.)
Performing measurements of the properties of antihydrogen, the bound state of an antiproton and a positron, and comparing the results with those for ordinary hydrogen, has long been seen as a route to test some of the fundamental principles of physics. There has been much experimental progress in this direction in recent years, and antihydrogen is now routinely created and trapped and a range of exciting measurements probing the foundations of modern physics are planned or underway. [...]
IOP, 2015 - 26 p. - Published in : J. Phys. B 48 (2015) 232001 Fulltext: fulltext - PDF; fulltext1616685 - PDF; Fulltext from Publisher: PDF; External link: Fulltext
4.
Low energy (anti)atoms for precision tests of basic physics / Silveira, D M ; Pereira, O ; Veloso, M ; Cesar, C L
Recent advances in techniques to manipulate and study, with high precision, atomic hydrogen, from one hand, and successful trapping schemes for positrons and antiprotons, from the other hand, have encouraged the pursuit of experiments to test CPT violation and the weak equivalence principle (WEP) through the comparison of hydrogen and antihydrogen. A description of the hydrogen trap and laser system being built in Rio, to trap and perform high resolution spectroscopy on cold hydrogen, is presented along with a discussion on the techniques and experimental system being implemented by the ATHENA collaboration at CERN to produce cold antihydrogen. [...]
2001
In : 21st Encontro Nacional de Fisica de Particulas e Campos : National Conferences on Physics of Particles and Fields, Sao Lourenco, Brazil, 23 - 27 Oct 2000, pp.203-10
5.

CERN-EX-0006003
© 2000-2024 CERN
The ATRAP experiment
Décélérateur d'antiprotons du CERN, la machine AD : manipulation d'un détecteur sur l'expérience ATRAP

The Antihydrogen Trap (ATRAP) experiment was the f [...]
9 Jun 2000
6.
Probing Trapped Antihydrogen: In Situ Diagnostics and Observations of Quantum Transitions / Friesen, T P
Antihydrogen, the bound state of a positron and an antiproton, is the simplest pure anti-atomic system and an excellent candidate to test the symmetry between matter and antimatter [...]
CERN-THESIS-2014-402. - 189 p.

Full text - Full text - Full text
7.
Antihydrogen for precision tests in physics / Charlton, M (Swansea U.) ; Jonsell, S (Swansea U.) ; Jørgensen, L V (Swansea U.) ; Madsen, N (Swansea U.) ; van der Werf, D P (Swansea U.)
The creation of atoms of antihydrogen under controlled conditions has opened up a new era in physics with antimatter. We describe the experimental realisation of low energy antihydrogen, via the mixing of carefully prepared clouds of positrons and antiprotons, and some of the progress that has been made in the last few years in characterising properties of the nascent anti-atoms. [...]
2008 - 13 p. - Published in : Contemp. Phys. 49 (2008) 29-41
8.
Design of a Superconducting Magnet System for the AEGIS Experiment at CERN / Dudarev, A (CERN) ; Doser, M (CERN) ; ten Kate, H (CERN) ; Perini, D (CERN)
The new AEGIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) Experiment will be installed in the Antiproton Decelerator hall at CERN. The main goal is to measure the Earth's gravitational acceleration of antihydrogen atoms. [...]
2011 - Published in : IEEE Trans. Appl. Supercond. 21 (2011) 1721-1724 IEEE Published version, local copy: PDF;
9.
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
10.
Detection of Trapped Antihydrogen / Hydomako, Richard Allan
The ALPHA experiment is an international effort to produce, trap, and perform precision spectroscopic measurements on antihydrogen (the bound state of a positron and an antiproton) [...]
CERN-THESIS-2011-299 - 259 p.

Alpha - Fulltext - Full text

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