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In physics, an anomalon is a hypothetical type of nuclear matter that shows an anomalously large reactive cross section. They were first noticed in experimental runs in the early 1980s as short tracks in film emulsions or plastic leaf detectors connected to medium-energy particle accelerators. The direction of the tracks demonstrated that they were the results of reactions taking place within the accelerator targets, but they stopped so quickly in the detectors that no obvious explanation for their behavior could be offered. A flurry of theoretical explanations followed, but over time a series of follow-up experiments failed to find strong evidence for the anomalons, and active study of the topic largely ended by the late 1980s.

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  • Anomalon (en)
  • Аномалон (ru)
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  • In physics, an anomalon is a hypothetical type of nuclear matter that shows an anomalously large reactive cross section. They were first noticed in experimental runs in the early 1980s as short tracks in film emulsions or plastic leaf detectors connected to medium-energy particle accelerators. The direction of the tracks demonstrated that they were the results of reactions taking place within the accelerator targets, but they stopped so quickly in the detectors that no obvious explanation for their behavior could be offered. A flurry of theoretical explanations followed, but over time a series of follow-up experiments failed to find strong evidence for the anomalons, and active study of the topic largely ended by the late 1980s. (en)
  • Аномалон — гипотетическая субатомная частица. Аномалон — вторичная частица, возникающая в результате бомбардировки ядра-мишени другим ядром. Его также называют фрагментом налетающего ядра. Необычность аномалона обусловлена тем, что, являясь ядерным фрагментом, по своему объёму он превышает целое ядро. Другая необъяснимая странность заключается в том, что время реакции, в результате которой появляется аномалон, существенно превышает время взаимодействия ядер. (ru)
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  • In physics, an anomalon is a hypothetical type of nuclear matter that shows an anomalously large reactive cross section. They were first noticed in experimental runs in the early 1980s as short tracks in film emulsions or plastic leaf detectors connected to medium-energy particle accelerators. The direction of the tracks demonstrated that they were the results of reactions taking place within the accelerator targets, but they stopped so quickly in the detectors that no obvious explanation for their behavior could be offered. A flurry of theoretical explanations followed, but over time a series of follow-up experiments failed to find strong evidence for the anomalons, and active study of the topic largely ended by the late 1980s. (en)
  • Аномалон — гипотетическая субатомная частица. Аномалон — вторичная частица, возникающая в результате бомбардировки ядра-мишени другим ядром. Его также называют фрагментом налетающего ядра. Необычность аномалона обусловлена тем, что, являясь ядерным фрагментом, по своему объёму он превышает целое ядро. Другая необъяснимая странность заключается в том, что время реакции, в результате которой появляется аномалон, существенно превышает время взаимодействия ядер. Сергей Богданов, профессор кафедры экспериментальной ядерной физики Санкт-Петербургского государственного технического университета, считает, что своим названием аномалон обязан опечатке: «При подготовке статьи о необычных (anomalous) сечениях вторичных ядерных фрагментов автор вместо „u“ напечатал „n“, что и послужило поводом для появления в научной литературе нового термина». (ru)
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