Is the electron radiation length constant at high energies?
نویسندگان
چکیده
Experimental results for the radiative energy loss of 149, 207, and 287 GeV electrons in a thin Ir target are presented. From the data we conclude that at high energies the radiation length increases in accordance with the Landau-Pomeranchuk-Migdal (LPM) theory and thus electrons become more penetrating the higher the energy. The increase of the radiation length as a result of the LPM effect has a significant impact on the behavior of high-energy electromagnetic showers.
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عنوان ژورنال:
- Physical review letters
دوره 91 1 شماره
صفحات -
تاریخ انتشار 2003