If A $\Sigma ^ { - }$ Particle at Rest Decays into a Neutron and A

question 6

Short Answer

If a $\Sigma ^ { - }$ particle at rest decays into a neutron and a $\pi ^ { - }$ , what is the total kinetic energy of the decay products? The masses of $\Sigma ^ { - }$ , neutron, and $\pi ^ { - }$ are $1197 \mathrm { MeV } / c ^ { 2 } , 940 \mathrm { MeV } / c ^ { 2 }$ , and $140 \mathrm { MeV } / c ^ { 2 }$ , respectively.

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Definitions:

Psychoanalysis

A method of psychology and therapy founded by Sigmund Freud that aims to treat mental disorders by investigating the interaction of conscious and unconscious elements in the mind.

Electroconvulsive Therapy

A psychiatric treatment in which seizures are electrically induced in patients to provide relief from mental disorders.

Depression

A psychiatric condition marked by ongoing feelings of sadness or a lack of enjoyment in activities, significantly hindering everyday functioning.

Cognitive-Behavioral Therapies

A group of psychotherapeutic approaches that treat problems by modifying dysfunctional emotions, behaviors, and thoughts.