Compression features of high density electron plasma in a long harmonic trap using a rotating wall technique

Mohamed, Tarek

doi:10.1016/j.physleta.2018.07.012

Cited by 3 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[12,28]). The density of incident electrons is chosen as n e = 5 × 10 10 cm −3 that, at the moment, is the highest possible electron density experimentally achievable in a cryogenic environment of temperatures T ∼ 10 K [29]. Further, we set the incident positron density to n p = 10 8 cm −3 which corresponds to the typical density of positrons in H/ H+ experiments (see, e.g.…”

Section: Resultsmentioning

confidence: 99%

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

Jacob,

Müller,

Voitkiv

2021

Preprint

View full text Add to dashboard Cite

The formation of positive ions of antihydrogen H+ via the three body reaction (i) e + + e − + H → e − + H+ is considered. In reaction (i), free positrons e + are incident on antihydrogen H embedded in a gas of low-energy (∼ meV) electrons and, due to the positron-electron interaction, a positron is attached to H whereas an electron carries away the energy excess. We compare reaction (i) with two radiative attachment mechanisms. One of them is (ii) spontaneous radiative attachment, in which the ion is formed due to spontaneous emission of a photon by a positron incident on H. The other is (iii) two-center dileptonic attachment which takes place in the presence of a neighboring atom B and in which an incident positron is attached to H via resonant transfer of energy to B with its subsequent relaxation through spontaneous radiative decay. It is shown that reaction (i) can strongly dominate over mechanisms (ii) and (iii) for positron energies below 0.1 eV. It is also shown that at the energies considered reaction (i) will not be influenced by annihilation and that the reaction e + + e + + H → e + + H+ has a vanishingly small rate compared to reaction (i).

show abstract

Section: Resultsmentioning

confidence: 99%

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

Jacob,

Müller,

Voitkiv

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The lengths of the two different electrode types were chosen to comply with a length-to-radius ratio of l st /r st = 0.85 and l col /r col = 0.7, respectively, leading to a storage trap electrode length of l st = 17 mm and a collision trap electrode length of l col = 7 mm. The lengthto-radius ratios were chosen based on the design values of other MRT experiments, which are typically in the range of 0.7 to about 1.0 [113,114], while the absolute values of the diameters are chosen to provide a sufficiently large trapping volume in the order of tens of cubic centimeters. Besides the basic cylindrical trap electrodes we also use azimuthally segmented electrodes.…”

Section: Electrodesmentioning

confidence: 99%

PUMA, antiProton unstable matter annihilation

Obertelli¹

2022

Eur. Phys. J. A

View full text Add to dashboard Cite

PUMA, antiProton Unstable Matter Annihilation, is a nuclear-physics experiment at CERN aiming at probing the surface properties of stable and rare isotopes by use of low-energy antiprotons. Low-energy antiprotons offer a very unique sensitivity to the neutron and proton densities at the annihilation site, i.e. in the tail of the nuclear density. Today, no facility provides a collider of low-energy radioactive ions and low-energy antiprotons: while not being a collider experiment, PUMA aims at transporting one billion antiprotons from ELENA, the Extra-Low-ENergy Antiproton ring, to ISOLDE, the rare-isotope beam facility of CERN. PUMA will enable the capture of low-energy antiprotons by short-lived nuclei and the measurement of the emitted radiations. In this way, PUMA will give access to the so-far largely unexplored isospin composition of the nuclear-radial-density tail of radioactive nuclei. The motivations, concept and current status of the PUMA experiment are presented.

show abstract

Formation of H¯+ via electron-assisted three-body attachment of e+ to H¯
Jacob
¹
,
Müller
²
,
Voitkiv
³

2021
Phys. Rev. A
1
0
1
0
View full text Add to dashboard Cite

Compression features of high density electron plasma in a long harmonic trap using a rotating wall technique

Cited by 3 publications

References 28 publications

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

PUMA, antiProton unstable matter annihilation

Formation of H¯+ via electron-assisted three-body attachment of e+ to H¯
Jacob
¹
,
Müller
²
,
Voitkiv
³

2021
Phys. Rev. A
1
0
1
0
View full text Add to dashboard Cite

Contact Info

Product

Resources

About

Compression features of high density electron plasma in a long harmonic trap using a rotating wall technique

Cited by 3 publications

References 28 publications

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

Formation of $\bar{\rm{H}}^+$ via three body attachment of $\rm{e}^+$ to $\bar{\rm{H}}$

PUMA, antiProton unstable matter annihilation

Formation of H¯+ via electron-assisted three-body attachment of e+ to H¯Jacob1, Müller2, Voitkiv3 2021Phys. Rev. A1010View full textAdd to dashboardCite

Contact Info

Product

Resources

About

Formation of H¯+ via electron-assisted three-body attachment of e+ to H¯
Jacob
¹
,
Müller
²
,
Voitkiv
³

2021
Phys. Rev. A
1
0
1
0
View full text Add to dashboard Cite