Konten dihapus Konten ditambahkan
|url=http://adsabs.harvard.edu/abs/2002astro.ph..4527H
|accessdate=2008-08-28
|doi=10.1088/0034-4885/65/7/201
|doi=10.1088/0034-4885/65/7/201 begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting begin_of_the_skype_highlighting 0034-4885/65/7/201 end_of_the_skype_highlighting
|last2=Hooper
|first2=Dan}}</ref> Ketika partikel-partikel ini bertumbukan dengan nukleon di atmosfer [[Bumi]], hujanan partikel-partikel dihasilkan, termasuk pula [[pion]].<ref>{{cite journal|first=James F|last=Ziegler
