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Maury, S.

doi:10.1023/a:1012632812327

Cited by 100 publications

(69 citation statements)

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“…It will by the end of 1998 be replaced for these purposes by the Antiproton Decelerator (AD). The AD (Berlin et al, 1996;Baird et al, 1997;Maury, 1997), being specifically directed towards the extremely low energies required for the kind of experiments described below, will retain most of the features of LEAR without being burdened by the high-luminosity requirements for microbarn or nanobarn-scale meson spectroscopy experiments, although its antiproton flux will be lower than that of LEAR by a factor of about 10. Strictly speaking, it is not a new machine but a modification of an old one, the Antiproton Collector (AC), referred to in Sec.…”

Section: The Antiproton Decelerator Admentioning

confidence: 99%

Forty years of antiprotons

Eades

Hartmann

1999

Rev. Mod. Phys.

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The discovery of the antiproton some 40 years ago and the almost synchronous fall of parity (P) and charge conjugation (C) symmetries were soon followed by the realization that CPT rather than C invariance is the fundamental symmetry connecting matter and antimatter, and that consequently any measurement of the antiproton's properties can be interpreted as a test of that symmetry. It is the latter view of the antiproton, as an object of study in its own right, rather than as a means to such other ends as the production of gauge bosons and meson resonances, that is presented here. The authors review the technical steps that have led from the handful of antiprotons observed by Chamberlain, Segrè , Wiegand, and Ypsilantis to the intense, high-quality beams available today and show how the state of rest and isolation required for high precision measurements of their properties can be achieved by confining them in electromagnetic traps or in their microscopic counterparts, exotic atoms. The test bench role of antiprotons and antihydrogen atoms for both CPT symmetry and the gravitational weak equivalence principle is discussed, and the body of experimental results obtained since 1955 critically reviewed from this standpoint. Future experiments are then discussed in the light of the closure of the CERN Low Energy Antiproton Ring (LEAR), its replacement in 1999 by the Antiproton Decelerator (AD), and the likely antiproton source at the Japan Hadron Facility.[S0034-6861(99)00401-8] CONTENTS

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Section: The Antiproton Decelerator Admentioning

confidence: 99%

Forty years of antiprotons

Eades

Hartmann

1999

Rev. Mod. Phys.

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“…We show detailed measurements of the near-axis antiproton radial profile and its relation to that of the electron plasma. Cold antihydrogen atoms (H) were first produced by the ATHENA collaboration [1], and, shortly thereafter, by ATRAP [2] at the CERN Antiproton Decelerator (AD) [3] in 2002. They were produced by mixing positrons (e + ) and antiprotons (p) held in PenningMalmberg traps.…”

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Compression of Antiproton Clouds for Antihydrogen Trapping

Andresen¹,

Bertsche²,

Bowe³

et al. 2008

Phys. Rev. Lett.

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Control of the radial profile of trapped antiproton clouds is critical to trapping antihydrogen. We report the first detailed measurements of the radial manipulation of antiproton clouds, including areal density compressions by factors as large as ten, by manipulating spatially overlapped electron plasmas. We show detailed measurements of the near-axis antiproton radial profile and its relation to that of the electron plasma.

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“…The antiprotons come from CERN's new Antiproton Decelerator (AD) [6]. Late in 2000 the AD started delivering 330 ns pulses of 5 MeV antiprotons, with 3 × 10 7 antiprotons per pulse in the best case.…”

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confidence: 99%

First positron cooling of antiprotons

et al. 2001

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Positrons are used to cool antiprotons for the first time. The oppositely charged positrons and antiprotons are first simultaneously accumulated in separate Penning trap volumes, and then are spatially merged in a nested Penning trap. The antiprotons cool until they reach a low relative velocity with respect to the cold positrons, the situation expected to be optimal for the production of cold antihydrogen.

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Cited by 100 publications

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Forty years of antiprotons

Forty years of antiprotons

Compression of Antiproton Clouds for Antihydrogen Trapping

First positron cooling of antiprotons

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