scholarly journals Buffer-Gas Cooling of a Single Ion in a Multipole Radio Frequency Trap Beyond the Critical Mass Ratio

2016 ◽  
Vol 116 (23) ◽  
Author(s):  
Bastian Höltkemeier ◽  
Pascal Weckesser ◽  
Henry López-Carrera ◽  
Matthias Weidemüller
Keyword(s):  
Radio Frequency ◽  
Critical Mass ◽  
Buffer Gas ◽  
Mass Ratio ◽  
Buffer Gas Cooling ◽  
Gas Cooling

Buffer-gas cooling of antiprotonic helium to 1.5 to 1.7 K, and antiproton-to-electron mass ratio

Science ◽  
2016 ◽  
Vol 354 (6312) ◽  
pp. 610-614 ◽  
Author(s):  
M. Hori ◽  
H. Aghai-Khozani ◽  
A. Soter ◽  
D. Barna ◽  
A. Dax ◽  
...  
Keyword(s):  
Antiprotonic Helium ◽  
Electron Mass ◽  
Buffer Gas ◽  
Mass Ratio ◽  
Buffer Gas Cooling ◽  
Gas Cooling

scholarly journals Precision laser spectroscopy experiments on antiprotonic helium

2018 ◽  
Vol 181 ◽  
pp. 01001
Author(s):  
Masaki Hori
Keyword(s):  
Laser Spectroscopy ◽  
Quantum Electrodynamics ◽  
Single Photon ◽  
Antiprotonic Helium ◽  
Doppler Width ◽  
Electron Mass ◽  
Buffer Gas ◽  
Mass Ratio ◽  
Buffer Gas Cooling ◽  
Three Body

At CERN‘s Antiproton Decelerator (AD) facility, the Atomic Spectroscopyand Collisions Using Slow Antiprotons (ASACUSA) collaboration is carrying out precise laser spectroscopy experiments on antiprotonic helium (p̅He+ ≡ p̅+He2++e−) atoms. By employing buffer-gas cooling techniquesin a cryogenic gas target, samples of atoms were cooled to temperatureT = 1.5–1.7 K, thereby reducing the Doppler width in the single-photon resonance lines. By comparing the results with three-body quantum electrodynamics calculations, the antiproton-to-electron mass ratio was determined as Mp̅/me = 1836.1526734(15). This agreed with the known proton-to-electron mass ratio with a precision of 8 . 1010. Further improvements in the experimental precision are currently being attempted. The high-quality antiproton beam provided by the future Extra Low Energy Antiproton Ring (ELENA) facility should further increase the experimental precision.

scholarly journals Realization of coherent optically dense media via buffer-gas cooling

2009 ◽  
Vol 79 (1) ◽  
Author(s):  
Tao Hong ◽  
Alexey V. Gorshkov ◽  
David Patterson ◽  
Alexander S. Zibrov ◽  
John M. Doyle ◽  
...  
Keyword(s):  
Buffer Gas ◽  
Buffer Gas Cooling ◽  
Dense Media ◽  
Gas Cooling

A slow, continuous beam of cold benzonitrile

2015 ◽  
Vol 17 (7) ◽  
pp. 5372-5375 ◽  
Author(s):  
David Patterson ◽  
John M. Doyle
Keyword(s):  
Buffer Gas ◽  
High Flux ◽  
Continuous Beam ◽  
Buffer Gas Cooling ◽  
Gas Cooling

A cold, continuous, high flux beam of benzonitrile has been created via buffer gas cooling.

scholarly journals Buffer-gas cooling, high-resolution spectroscopy, and optical cycling of barium monofluoride molecules

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Ralf Albrecht ◽  
Michael Scharwaechter ◽  
Tobias Sixt ◽  
Lucas Hofer ◽  
Tim Langen
Keyword(s):  
High Resolution ◽  
High Resolution Spectroscopy ◽  
Buffer Gas ◽  
Buffer Gas Cooling ◽  
Gas Cooling

External-ion accumulation in a Penning trap with quadrupole excitation assisted buffer gas cooling

1994 ◽  
Vol 132 (3) ◽  
pp. 181-191 ◽  
Author(s):  
H.-U. Hasse ◽  
St. Becker ◽  
G. Dietrich ◽  
N. Klisch ◽  
H.-J. Kluge ◽  
...  
Keyword(s):  
Penning Trap ◽  
Ion Accumulation ◽  
Buffer Gas ◽  
Buffer Gas Cooling ◽  
Quadrupole Excitation ◽  
Gas Cooling
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