In Addition to Charge and Baryon Number, Another Conserved Quantity

question 22

Multiple Choice

In addition to charge and baryon number, another conserved quantity in particle interactions is lepton number. The six leptons have lepton number +1, and their antiparticles have lepton number −1. The lepton numbers for each generation (electron, muon, tau) are separately conserved. For example, an electron has electron-lepton number +1, while the electron antineutrino has electron-lepton number −1. What is the missing particle X in the following reaction? v_μ + → + X

• A) e⁻
• B) τ⁻
• C) μ⁻
• D) π⁻

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Definitions:

Semantic Memories

Memories of meanings, understandings, and other concept-based knowledge unrelated to specific experiences.

Episodic Memories

A type of long-term memory that involves the recollection of specific events, situations, and experiences, including the contexts and emotions associated with them.

Temporal Lobes

Regions of the cerebral cortex located beneath the temples, involved in processing auditory information and encoding memory.

Hippocampus

A major component of the brain located in the temporal lobe, critical for the storage of new memories and is associated with learning and emotions.