Pions are also produced in the upper atmosphere. [In fact, the sequence is proton (from outer space) hits proton (in atmosphere) —> p+p+pions. The pions then decay into muons: À→µ¯¯+vµ; π* →µ* +vµ.] But the lifetime of the pion is much shorter, a hundredth that of the muon. Should the pions reach ground level? (Assume that the pions also have a speed of 0.998 c.)
Pions are also produced in the upper atmosphere. [In fact, the sequence is proton (from outer space) hits proton (in atmosphere) —> p+p+pions. The pions then decay into muons: À→µ¯¯+vµ; π* →µ* +vµ.] But the lifetime of the pion is much shorter, a hundredth that of the muon. Should the pions reach ground level? (Assume that the pions also have a speed of 0.998 c.)
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![(c) Pions are also produced in the upper atmosphere. [In fact, the sequence is proton
(from outer space) hits proton (in atmosphere) -> p +p+pions.
+
The pions then decay into muons: ñ→µ¯¯ +vµ; π†→µ* +vµ.] But the lifetime of the
pion is much shorter, a hundredth that of the muon. Should the pions reach ground
level? (Assume that the pions also have a speed of 0.998 c.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe44e7fdc-f850-4dc9-8247-4240983c667e%2Fc6926763-fadc-4e64-9886-ebcfda535883%2Fhy0ykhr_processed.png&w=3840&q=75)
Transcribed Image Text:(c) Pions are also produced in the upper atmosphere. [In fact, the sequence is proton
(from outer space) hits proton (in atmosphere) -> p +p+pions.
+
The pions then decay into muons: ñ→µ¯¯ +vµ; π†→µ* +vµ.] But the lifetime of the
pion is much shorter, a hundredth that of the muon. Should the pions reach ground
level? (Assume that the pions also have a speed of 0.998 c.)
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