| Abstract
| - Abstract. Fifty two high energy cosmic ray interactions in graphite have been analysed. The analysis strongly suggests that some of the characteristics of high energy interactions are dependent on the total transverse momentum,Σpt, of allγ-rays in an interaction. Out of the 52 events analysed, 29 haveΣpt⩽2.5 GeV/c and the rest haveΣpt>2.5 GeV/c; the former are called smallpt events while the latter are designated as largept events. For these two types of events, the characteristics investigated are: (a) fractional energy distribution ofγ-rays, (b) the invariant mass ofγ-rays and (c) the energy distribution ofγ-rays in the emission system.
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