Register to reply 
Error of narrow width approximation 
Share this thread: 
#1
Nov2513, 08:04 AM

P: 57

Hi all,
Let me ask about what is meant that Narrow width approximation has an error ~ ## \Gamma/m ##, is it mean the calculations of the cross section with NWA differ by that with no approximation by ## \Gamma/m ##. For ex. If ##\Gamma = 100 ## , m = 1000 and sigma = 10^6, then sigma (NWA)= 10^5, or this error appears only as a shift for the resonance peak of the inv. mass plot of the propagator products (like pp > Z > f fbar). Regards, S. 


Register to reply 
Related Discussions  
Narrowwidth approximation  High Energy, Nuclear, Particle Physics  2  
SVD approximation error  Linear & Abstract Algebra  0  
Narrow Width Approximation for a spin 1 resonance  High Energy, Nuclear, Particle Physics  6  
Trapezoidal Approximation Error  Calculus & Beyond Homework  1  
Soft error pulse width in CPU  Engineering, Comp Sci, & Technology Homework  2 