1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: The lifetime of particles

  1. Jul 2, 2010 #1
    1. The problem statement, all variables and given/known data

    The Y Meson has a rest mass of 9.6 GeV/c2 and a measured width of (Delta)E= 51keV. What is its approximate lifetime (delta)t?



    2. Relevant equations
    E=MC2

    And.. who knows?

    3. The attempt at a solution

    We came to the conclusion that 9.6 GeV/c2 was related to E=MC2.. and we pretty much had no idea with the measured width of (Delta)E= 51keV ( we thought it might be related to electric fields though).
     
  2. jcsd
  3. Jul 3, 2010 #2
    (Note: Planck's Reduced constant = 1.055x10^-34 and 1 ev = 1.6x10^-19 J)

    The question gives you that information
     
  4. Jul 3, 2010 #3

    vela

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Education Advisor

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook