An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : coupling constant
coupling constant
  پایای ِ جفسری   
pâyâ-ye jafsari

Fr.: constante de couplage   

In nuclear physics, a constant that indicates a measure of how strongly two particles interact.

coupling; → constant.

electromagnetic coupling constant
  پایای ِ جفسری ِ برقامغناتی   
pâyâ-ye jafsari-ye barqâmeqnâti

Fr.: constante de couplage electromagnétique   

Same as → fine-structure constant.

electromagnetic; → coupling; → constant.

gravitational coupling constant
  پایای ِ جفسری ِ گرانشی   
pâyâ-ye jafsari-ye gerâneši

Fr.: constante de couplage gravitationnel   

The dimensionless gravitational constant defined as the gravitational attraction between pair of electrons and normally given by: αG = (Gme2) / (ħc) = (me / mP)2 ~ 1.7518 × 10-45, where ħ is → Planck's reduced constant, c the → speed of light, me is the → electron mass, and mP is the → Planck mass.

gravitational; → coupling; → constant.