Cargando…

Isotope Effects on Delayed Annihilation Time Spectra of Antiprotonic Helium Atoms in Low-Temperature Gas

The delayed annihilation time spectra (DATS) of antiprotonic helium atoms have been studied in isotopically pure low temperature ^3He and ^4He gas at various densities. The DATS taken at 5.8~K and 400~mbar are very similar in shape except for i) a small difference in the time scale and ii) the prese...

Descripción completa

Detalles Bibliográficos
Autores principales:	Ketzer, B, Hartmann, F J, Daniel, H, Von Egidy, T, Niestroj, A, Schmid, S, Schmid, W, Yamazaki, T, Sugai, I, Nakayoshi, K, Hayano, R S, Maas, F E, Torii, H A, Ishikawa, T, Tamura, H, Morita, N, Horváth, D, Eades, John, Widmann, E
Lenguaje:	eng
Publicado:	1995
Materias:	Other Fields of Physics
Acceso en línea:	https://dx.doi.org/10.1103/PhysRevA.53.2108 http://cds.cern.ch/record/292195

Ejemplares similares

Laser induced annihilation in antiprotonic helium atoms
por: Maas, F E, et al.
Publicado: (1995)

First observation of laser-induced resonant annihilation in metastable antiprotonic helium atoms
por: Morita, N, et al.
Publicado: (1993)

Phase and density dependence of the delayed annihilation of metastable antiprotonic helium atoms in gas, liquid and solid helium
por: Widmann, E, et al.
Publicado: (1994)

Laser studies of the decay chain of metastable antiprotonic helium atoms
por: Hayano, R S, et al.
Publicado: (1994)

Instrumentation For Laser-induced Annihilation Spectroscopy Of Metastable Anti-protonic Helium Atoms
por: Torii, H A, et al.
Publicado: (1997)

Delayed annihilation of antiprotons in helium gas
por: Nakamura, S N, et al.
Publicado: (1993)

Laser spectroscopy of antiprotonic helium and stringent constraint on the antiproton charge and mass
por: Hayano, R S, et al.
Publicado: (2000)

Trapping of antiprotons in metastable antiprotonic helium atoms: progress and prospects
por: Daniel, H, et al.
Publicado: (1994)

Laser spectroscopic studies of state-dependent collisional quenching of the lifetimes of metastable antiprotonic helium atoms
por: Hori, M, et al.
Publicado: (1998)

Laser Measurements of the Density Shifts of Resonance Lines in Antiprotonic Helium Atoms and Stringent Constraint on the Antiproton Charge and Mass
por: Torii, H A, et al.
Publicado: (1998)

Quenching of metastable states of antiprotonic helium atoms by collisions with H$_2$ molecules
por: Ketzer, B, et al.
Publicado: (1998)

Observation of double resonant laser induced transitions in the $v = n - l - 1 = 2$ metastable cascade of antiprotonic helium-4 atoms
por: Hayano, R S, et al.
Publicado: (1996)

Long-lived antiprotonic atom in liquid and solid helium
por: Nishida, N, et al.
Publicado: (1993)

Influence of oxygen admixtures on the lifetime of metastable antiprotonic helium atoms
por: Pohl, R, et al.
Publicado: (1998)

Effects of impurity atoms and molecules on the lifetime of antiprotonic helium atoms
por: Widmann, E, et al.
Publicado: (1996)

Hydrogen-assisted laser-induced resonant transitions between metastable states of antiprotonic helium atoms
por: Ketzer, B, et al.
Publicado: (1996)

Antiproton trapping in various helium media: report of the HELIUMTRAP experiment at LEAR
por: Widmann, E, et al.
Publicado: (1992)

Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms
por: Maas, F E, et al.
Publicado: (1995)

High-Precision Structural Studies of the Antiproton Helium Atom $\overline{p}^{4}He^+$ by Observing Laser Resonances with $\Delta v = \Delta (n-l-1) = 2$
por: Yamazaki, T, et al.
Publicado: (1996)

Survival of antiprotons in helium media: an unusual antiprotonic atom/molecule
por: Yamazaki, T, et al.
Publicado: (1992)

Exotic trapping of antiprotons in gaseous helium
por: Yamazaki, T, et al.
Publicado: (1992)

Effects of impurity molecules on the lifetime of antiprotonic helium atoms
por: Juhász, B, et al.
Publicado: (2004)

Laser spectroscopy of metastable states in the $\upsilon = 2$ cascade of antiprotonic $^{3}He$
por: Hartmann, F, et al.
Publicado: (1998)

Precise laser spectroscopy of the antiprotonic helium atom and CPT test on antiproton mass and charge
por: Yamaguchi, H, et al.
Publicado: (2003)

Anomalies in the decay rates of antiprotonic helium-atom states
por: Yamaguchi, H, et al.
Publicado: (2002)

Systematic study of the decay rates of antiprotonic helium states
por: Yamaguchi, H., et al.
Publicado: (2004)

Observation of cold, long-lived antiprotonic helium ions
por: Hori, M, et al.
Publicado: (2005)

Quenching Of Metastable States Of Anitprotonic Helium Atoms By Collisions With H(2) Molecules
por: Ketzer, B, et al.
Publicado: (1997)

Quenching of metastable antiprotonic helium atoms in collisions with deuterium molecules
por: Juhász, B, et al.
Publicado: (2002)

First investigation of metastable states in antiprotonic helium atoms by laser spectroscopy
por: Maas, F E, et al.
Publicado: (1994)

Hyperfine structure measurements of antiprotonic helium and antihydrogen
por: Widmann, Eberhard, et al.
Publicado: (2001)

Laser-induced resonant transitions in the v=n-l-1=2 and 3 metastable cascades of antiprotonic $^{3}He atoms
por: Torii, H A, et al.
Publicado: (1995)

Quantum tunnelling effects revealed in collisions of antiprotonic helium with hydrogenic molecules at low temperatures
por: Juhász, Bertalan, et al.
Publicado: (2003)

Delayed antiproton annihilation in gaseous, liquid and solid helium: Interim report on PS205 run 1992
por: Widmann, E, et al.
Publicado: (1994)

Formation of long-lived gas-phase antiprotonic helium atoms and quenching by H2
por: Yamazaki, T, et al.
Publicado: (1993)

Hyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method
por: Widmann, E., et al.
Publicado: (2002)

Cryogenic Tunable Microwave Cavity at 13 GHz for Hyperfine Spectroscopy of Antiprotonic Helium
por: Barna, D, et al.
Publicado: (2004)

Sub-ppm Laser Spectroscopy of Antiprotonic Helium and a CPT-Violation Limit on the Antiprotonic Charge and Mass
por: Hori, Masaki, et al.
Publicado: (2001)

Antiprotonic helium
por: Eades, John
Publicado: (2005)

Populations and lifetimes in the $v=n-l-1=2$ and 3 metastable cascades of $\overline{p} He^{+}$ measured by pulsed and continuous antiproton beams
por: Hori, Masaki, et al.
Publicado: (2004)

Cannot write session to /tmp/vufind_sessions/sess_gja9qvfsg7sl2bhfafkt14s148