Published September 2004 | Version v1
Journal article Metadata-only

Antiproton slowing down, capture, and decay in low-pressure helium gas

Creators

  • 1. Dipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, Universita di Brescia, Brescia and INFN, Gruppo di Brescia, Brescia (Italy)
  • 2. Dipartimento di Fisica, Universita di Bologna and INFN, Sezione di Bologna, Bologna (Italy)

Description

Data on p slowing down and capture in helium at 1 and 0.2 mb at room temperature are presented and compared to the corresponding previously publicated data in molecular hydrogen and deuterium. A Monte Carlo simulation containing a low-energy extrapolation of measured p electronic stopping power in helium gas, screened Rutherford collisions, and simple cascade mechanisms is able to reproduce the gross features of the data, but cannot explain some nontrivial details of the measured distributions

Additional details

Identifiers

DOI
10.1103/PhysRevA.70.032501;

Publishing Information

Journal Title
Physical Review. A
Journal Volume
70
Journal Issue
3
Journal Page Range
p. 032501-032501.9
ISSN
1050-2947
CODEN
PLRAAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36087032
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ANTIPROTONS; CAPTURE; COLLISIONS; COMPUTERIZED SIMULATION; DECAY; DEUTERIUM; DISTRIBUTION; ENERGY LOSSES; EXTRAPOLATION; HADRONIC ATOMS; HELIUM; HYDROGEN; MOLECULES; MONTE CARLO METHOD; SLOWING-DOWN; STOPPING POWER
Descriptors DEC
ANTIBARYONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; ATOMS; BARYONS; CALCULATION METHODS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FLUIDS; GASES; HADRONS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; LOSSES; MATHEMATICAL SOLUTIONS; MATTER; NONMETALS; NUCLEI; NUCLEONS; NUMERICAL SOLUTION; ODD-ODD NUCLEI; PROTONS; RARE GASES; SIMULATION; STABLE ISOTOPES

Optional Information

Notes
(c) 2004 The American Physical Society