Antimatter Research with Cold Antihydrogen and Cold Antiproton
نویسندگان
چکیده
منابع مشابه
Cold-antimatter Physics *
The CPT theorem and the Weak Equivalence Principle are foundational principles on which the standard description of the fundamental interactions is based. The validity of such basic principles should be tested using the largest possible sample of physical systems. Cold neutral antimatter (low-energy antihydrogen atoms) could be a tool for testing the CPT symmetry with high precision and for a d...
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ATRAP s eþ cooling of p in a nested Penning trap has led to reports of cold H produced during such cooling by the ATHENA and ATRAP collaborations. To observe H, ATHENA uses coincident annihilation detection and ATRAP uses field ionization followed by p storage. Advantages of ATRAP s field ionization method include the complete absence of any background events, and the first way to measure which...
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Certain modern theories of gravity predict that antimatter will fall differently than matter in the Earth’s gravitational field. However, no experimental tests of gravity on antimatter exist and all conclusions drawn from experiments on matter depend, at some level, on a specific model. We have proposed a direct measurement that would compare the gravitational acceleration of antiprotons to tha...
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Antihydrogen is formed when antiprotons are mixed with cold positrons in a nested Penning trap. We present experimental evidence, obtained using our antihydrogen annihilation detector, that the spatial distribution of the emerging antihydrogen atoms is independent of the positron temperature and axially enhanced. This indicates that antihydrogen is formed before the antiprotons are in thermal e...
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A. KELLERBAUER, M. AMORETTI, C. AMSLER, G. BONOMI, P. D. BOWE, C. CANALI, C. CARRARO, C. L. CESAR, M. CHARLTON, M. DOSER, A. FONTANA, M. C. FUJIWARA, R. FUNAKOSHI, P. GENOVA, J. S. HANGST, R. S. HAYANO, I. JOHNSON, L. V. JØRGENSEN, V. LAGOMARSINO, R. LANDUA, E. LODI RIZZINI, M. MACRÍ, N. MADSEN, G. MANUZIO, D. MITCHARD, P. MONTAGNA, H. PRUYS, C. REGENFUS, A. ROTONDI, G. TESTERA, A. VARIOLA, L. ...
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ژورنال
عنوان ژورنال: Molecular Science
سال: 2012
ISSN: 1881-8404
DOI: 10.3175/molsci.6.a0053