Is the Lowest Possible Spin of Particle p 2 in Decay Scenarios?

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In summary, the argument is correct that the lowest possible spin of particle p is 2, as it is necessary for the spin to be even and large enough to accommodate the spin-1 product when p decays into a spin-1 and a spin-0 particle. This is assuming that conservation of total angular momentum holds. Additionally, since both the particles in the decay have negative intrinsic parity, it can be inferred that the intrinsic parity of p is also negative.
  • #1
MarkovMarakov
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Does the following argument correct?

Suppose there is a particle $p$ that can either decay into $ \{$a spin-1 and a spin-0 particle$\}$ or two spin-0 particles, then the lowest possible spin of $p$ is 2. This is because we need the spin to be even and large enough to accommodate the spin-1 product.
(Assuming that the total ang momentum is conserved in the decay.)


Thank you in advance!
 
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  • #2
ADDED:

[itex]p[/itex] is such that [itex]p\to \pi^-+\rho^+[/itex] and [itex]p\to \xi+\xi[/itex] where [itex]\xi[/itex] is a particle of spin 0. I want to know the lowest possible spin for [itex]p[/itex].
I am assuming that conservation of total angular momentum and parity holds.

By the way, would the intrinsic parity of [itex]p[/itex] be negative, since I think each of [itex]\rho^+[/itex] and [itex]\pi^-[/itex] have negative intrinsic parity?
 

Related to Is the Lowest Possible Spin of Particle p 2 in Decay Scenarios?

1. What is spin in particle physics?

Spin is a fundamental property of particles that describes their intrinsic angular momentum. It is quantized and can have values of 0, 1/2, 1, 3/2, etc. Spin is an important factor in determining the behavior and interactions of particles.

2. How is spin related to particle decays?

Particle decays can be affected by the spin of the decaying particle, as well as the spins of the resulting decay products. For example, in certain decays, the spin of the initial particle must be conserved, leading to specific spin configurations for the decay products.

3. Can particles with different spins decay into each other?

Yes, particles with different spins can decay into each other. However, certain conservation laws, such as angular momentum conservation, must be satisfied in the decay process. This means that the spins of the initial and final particles must add up to the same value.

4. How is spin measured in particle physics experiments?

Spin can be measured using various techniques in particle physics experiments. These include analyzing the angular distributions of decay products, measuring the polarization of particles, and using particle detectors that are sensitive to the spin of particles.

5. What is a spin-0 particle?

A spin-0 particle is a particle with no intrinsic angular momentum. This means that it does not spin or rotate on its own axis. Examples of spin-0 particles include the Higgs boson and the pion.

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