Relativistic Particle Decay: Simultaneous Decay of 2 Particles

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The discussion centers on the relativistic decay of two unstable particles moving at a velocity of 0.992c in reference frame M, with a distance of 110 meters between them. Participants highlight that while the decays are simultaneous in frame M, the concept of which particle decays later is frame-dependent, as different observers may perceive the decay order differently due to relativistic effects. The conversation emphasizes the importance of understanding simultaneity in special relativity and the implications for particle decay observations.

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Well, I don't want the solution but a few ideas to start solving this..

Two unstable particles move in the reference frame M with a velocity v=0.992c. The distance between them in this reference frame is l=110 m. At a certain moment both particles decay simultaneously in this frame. What time interval between the moments of decay of the 2 particles will be observed in the frame ? Which particle decays later in this frame?

Please tell me a bit on the concept of particle decay in a relativistic case like this..
 
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I don't know if I'm misreading this. You say the decays are simultaneous when seen from M. So the question "Which particle decays later in this frame?" ( M ?) is a bit pointless. There are frames where either particle will be seen to decay before the other.
 
Looks to me like the OP 'cut and pasted' this problem from somewhere and in the process several key words were dropped.
 

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