An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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transverse mass
  جرم ِ تراگذر  
jerm-e tarâgozar
Fr.: masse transverse  

In special relativity theory, the mass when the acceleration of a body is perpendicular to its velocity:

mt = m0 / [1 - (v/c)2]1/2,
where m0 is the → rest mass, v is the velocity, and c the → velocity of light. The transverse mass is identical to the → relativistic mass. See also → longitudinal mass.

See also: → transverse; → mass.