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・ Infrared gas analyzer
・ Infrared heater
・ Infrared homing
・ Infrared interferometer spectrometer and radiometer
・ Infrared lamp
・ Infrared multiphoton dissociation
・ Infrared non-destructive testing of materials
・ Infrared open-path detector
・ Infrared Optical Telescope Array
・ Infrared photography
・ Infrared Physics and Technology
・ Infrared point sensor
・ Infrared Processing and Analysis Center
・ Infrared Riding Hood
・ Infrared Roses
Infrared safety (particle physics)
・ Infrared sauna
・ Infrared Science Archive
・ Infrared sensing in snakes
・ Infrared sensing in vampire bats
・ Infrared Sightings
・ Infrared signature
・ Infrared Space Observatory
・ Infrared Space Systems Directorate
・ Infrared Spatial Interferometer
・ Infrared spectroscopy
・ Infrared spectroscopy correlation table
・ Infrared telescope
・ Infrared thermometer
・ Infrared vision


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Infrared safety (particle physics) : ウィキペディア英語版
Infrared safety (particle physics)
In particle physics, and especially asymptotically free quantum field theories, an observable is infrared safe if it does not depend on the low energy/long distance physics of the theory. Such observables can therefore be calculated reliably using perturbative methods and then compared to experiment.〔
〕〔

An example of an observable which is infrared safe is the total scattering cross-section for the collision of an electron and a positron to produce hadrons.〔

==See also==

* Asymptotic freedom
* Infrared divergence
* Kinoshita-Lee-Nauenberg theorem

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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