The ºlifetime has been determined by studying the decy' om rest of the K+ meson in the mode K+ →° +¹. The average distance travelled by the Tºin a block of photographic emulsion before it decays in the easily observable mode лº →→ е++ e +y is measured, and from the calculated velocity of flight et of the its lifetime is obtained. Given that its lifetime is 0.8x10-¹6 sec, predict the average distance travelled by a ºbefore it decays. (Hint: you may assume that the pions have an average mass of 137 MeV,
The ºlifetime has been determined by studying the decy' om rest of the K+ meson in the mode K+ →° +¹. The average distance travelled by the Tºin a block of photographic emulsion before it decays in the easily observable mode лº →→ е++ e +y is measured, and from the calculated velocity of flight et of the its lifetime is obtained. Given that its lifetime is 0.8x10-¹6 sec, predict the average distance travelled by a ºbefore it decays. (Hint: you may assume that the pions have an average mass of 137 MeV,
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3. The ºlifetime has been determined by studying the decy.om rest of the K+
meson in the mode K+ →° ++. The average distance travelled by the
Tºin a block of photographic emulsion before it decays in the easily observable
mode nº→ е+ + e +y is measured, and from the calculated velocity of flight
of the its lifetime is obtained. Given that its lifetime is 0.8x10-¹6 sec, predict
the average distance travelled by a zºbefore it decays. (Hint: you may assume
that the pions have an average mass of 137 MeV;
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