Undergrad Decay time of different types of bosons, hadrons and fermions

Click For Summary
Information on the decay times of various bosons, hadrons, and fermions can be found through resources like the Particle Data Group, which compiles relevant publications. For hadron resonances, if lifetime data is unavailable, one can calculate it using the particle's width with the formula t_X = ħ/Γ_X. An example provided is the Δ(1232) resonance, where its width allows for the determination of its lifetime as approximately 1.7 fm/c. The discussion emphasizes the importance of reliable sources and calculations for understanding particle decay. Comprehensive data is essential for researchers in particle physics.
Incurably Curious
Messages
1
Reaction score
1
I'm interested in knowing where can i find the information on decay time of (possibly every?) different type of bosons, hadrons and fermions, which is available to the public (tiletles of books, articles, ...). Any suggestions or ideas?
 
Physics news on Phys.org
And for some hadron resonances X, in case you can't find their lifetime, t_X, you can use their width, \Gamma_X:
t_X = \frac{\hbar}{\Gamma_X}
-------------
e.g. such is the case of \Delta(1232) from what I saw...
pdgLive (lbl.gov)
with \Gamma_\Delta \approx 117 \text{ MeV} (from pdg)
and \hbar c \approx 197.327 \text{ MeV fm} (just a conversion constant)
you get:
t_\Delta = \frac{\hbar}{\Gamma_X}= \frac{\hbar c}{\Gamma_X ~c}=\frac{197.327}{117} \text{ fm/c} \approx 1.7 \text{ fm/c}
which is the lifetime of the \Delta(1232) at its pole mass (Fig.2 1507.03279.pdf (arxiv.org) ).
 
Last edited:

Similar threads

  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 35 ·
2
Replies
35
Views
9K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
7
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
4
Views
2K