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Title of Journal: Nuovo Cimento A 19651970

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Abbravation: Il Nuovo Cimento A (1965-1970)

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Springer Berlin Heidelberg

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DOI

10.1002/ange.200301697

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1826-9869

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Lifetime of the ∑Superscript−/Superscripthype

Authors: H Whiteside J Gollub
Publish Date: 2016/01/13
Volume: 54, Issue: 3, Pages: 537-548
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Abstract

A new measurement of the ∑− mean lifetime has been obtained from a sample of 506 ∑− decays and reactions which are produced in a hydrogen bubble chamber and satisfy certain geometrical criteria By using a maximumlikelihood calculation and making an appropriate correction for ∑− interactions in flight the value obtained for the ∑− lifetime is 138±007·10−10 sБыло проведено новое измерение сремени жизни ∑− из образца содержащего 506 ∑− распадов и реакции которые производились в водородной пузырьковой камере и удовлетворяют определенным геометрическим критериям Посредством использования вычисления максимаьной вероятности и учитывая соответствующую поправку для ∑− взаимодействий в полете величина полученная для времени жизни ∑− равна 138±007·10−10 секSi è ottenuta una nuova misura del tempo di vita medio del ∑− utilizzando 506 reazioni e decadimenti di ∑− prodotti in una camera a bolle ad idrogeno e soddisfacenti alcuni criteri geometrici Usando un calcolo di massima probabilità e introducendo adeguate correzioni per interazioni in volo ∑− si ha che la vita media di ∑− è di 138±007·10−10 s

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