One Way to Estimate the Range of an Interaction Is

question 5

Multiple Choice

One way to estimate the range of an interaction is by using the Heisenberg uncertainty principle. Assume that the uncertainty in the energy of an exchange particle is given by its rest energy and that the particle travels at nearly the speed of light. Under those assumptions, what is the approximate range of the weak interaction mediated by the Z⁰ particle, which has a mass of 91.2 GeV/c²?

• A) 10⁻¹⁵ m
• B) 10⁻¹⁸ m
• C) 10⁻²¹ m
• D) 10⁻²⁴ m
• E) 10⁻²⁷ m

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Definitions:

WACC

The Weighted Average Cost of Capital is a method of determining a corporation's cost of capital, with each capital category being weighted in accordance with its relative proportion.

IRR

Internal Rate of Return; a financial metric used to evaluate the profitability of potential investments, representing the discount rate that makes the net present value of all cash flows equal to zero.

Cash Flow

A measure of the amount of cash and cash-equivalents being transferred into and out of a business.

Project

An individual or collaborative enterprise planned and designed to achieve a specific goal.