Decay time of different types of bosons, hadrons and fermions

In summary, the Particle Data Group is a reliable source for publications on the decay time of various types of bosons, hadrons, and fermions. In cases where the lifetime cannot be found, the width can be used to calculate it using the formula t_X = \hbar / \Gamma_X. For example, the lifetime of \Delta(1232) can be calculated using the width of \Gamma_\Delta \approx 117 \text{ MeV} and the conversion constant \hbar c \approx 197.327 \text{ MeV fm}, resulting in a lifetime of approximately 1.7 \text{ fm/c}.
  • #1
Incurably Curious
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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?
 
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  • #3
And for some hadron resonances [itex]X[/itex], in case you can't find their lifetime, [itex]t_X[/itex], you can use their width, [itex]\Gamma_X[/itex]:
[itex]t_X = \frac{\hbar}{\Gamma_X}[/itex]
-------------
e.g. such is the case of [itex]\Delta(1232)[/itex] from what I saw...
pdgLive (lbl.gov)
with [itex]\Gamma_\Delta \approx 117 \text{ MeV}[/itex] (from pdg)
and [itex] \hbar c \approx 197.327 \text{ MeV fm}[/itex] (just a conversion constant)
you get:
[itex]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}[/itex]
which is the lifetime of the [itex]\Delta(1232)[/itex] at its pole mass (Fig.2 1507.03279.pdf (arxiv.org) ).
 
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What is the decay time of different types of bosons?

The decay time of bosons can vary greatly depending on the specific type of boson. For example, the Higgs boson has a decay time of about 1.56 x 10^-22 seconds, while the W and Z bosons have a decay time of about 3 x 10^-25 seconds.

How does the decay time of hadrons compare to that of bosons?

Hadrons, which are composite particles made up of quarks, have a much longer decay time compared to bosons. For example, the proton, which is a type of hadron, has a decay time of about 10^32 years. This is due to the strong force that holds the quarks together, making it much more stable than bosons.

Do fermions have a decay time?

Fermions, which are particles with half-integer spin, do not have a decay time in the same sense as bosons and hadrons. However, some fermions, such as the neutron, can undergo beta decay, which changes the type of fermion it is. This process has a half-life of about 10 minutes.

Can the decay time of particles be predicted?

The decay time of particles cannot be predicted with certainty, as it is a probabilistic process. However, scientists can use mathematical models and experimental data to estimate the average decay time of different types of particles.

How does the mass of a particle affect its decay time?

Generally, the more massive a particle is, the longer its decay time will be. This is because more massive particles have more energy and therefore require more time to decay. However, there are exceptions to this, such as the top quark, which is the most massive elementary particle but has a very short decay time of about 5 x 10^-25 seconds.

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