MY-ASSIGNMENTEXPERT™可以为您提供mines.edu PHGN422 Nuclear Physics核物理课程的代写代考和辅导服务！
PHGN422课程简介
The course will contain four (4) assignments which are designed to cover each of the major topics in the course. The assignments represent a significant portion of the final grade, and are intended to prepare the students for the midterm examination and final presentation. Late assignments will not be accepted, and will result in a mark of zero. If special consideration is required, please discuss it with the Professor well in advance of the specific assignment deadline.
Introduction to subatomic (particle and nuclear) phenomena. Characterization and systematics of particle and nuclear states; symmetries; introduction and systematics of the electromagnetic, weak, and strong interactions; systematics of radioactivity; liquid drop and shell models; nuclear technology. Prerequisite: PHGN300/310. 3 hours lecture; 3 semester hours.
Credits
3
Recent Professors
Kyle Leach
Prerequisites
Course Delivery: The course will primarily be presented in a traditional lecture-style format with a combination of projected slides, a chalkboard, and active in-class discussions directed by the students. Supplemental material will be made available on the course website after each class.
Course Objectives: To provide a detailed introduction of nuclear physics to advanced undergraduate students. The ultimate goal of the student is to understand the framework and analytical skills necessary to evaluate fundamental properties of the atomic nucleus (both experimental and theoretical). The course material is tied in to active ongoing research in nuclear and particle physics.
PHGN422 Nuclear Physics HELP（EXAM HELP， ONLINE TUTOR）
Express the following constants in $[\mathrm{MeV} \cdot \mathrm{fm}]$ starting from SI units (the way the constants are typically defined). Make sure to show all steps in your calculation.
$h c$
$\hbar c$
$\frac{e^2}{4 \pi \varepsilon_0}$
Hint: 1 Joule $=6.24 \times 10^{18} \mathrm{eV}$
- $h=6.626 \times 10^{-34} \mathrm{~J} \cdot \mathrm{s} \quad$ – $1 \mathrm{MeV}=1 \times 10^6 \mathrm{eV}$
- $c=2.998 \times 10^8 \mathrm{~m} \cdot \mathrm{s}^{-1}$
- $\frac{1}{4 \pi \varepsilon_0}=8.988 \times 10^9 \mathrm{~N} \cdot \mathrm{m}^2 / \mathrm{c}^2$
- $1 \mathrm{eV}=1.6 \times 10^{-19} \mathrm{~J}$
- $e=1.6 \times 10^{-19} \mathrm{C}$
- $1 \mathrm{fm}=1 \times 10^{-15} \mathrm{~m}$
- $1 \mathrm{~J}=1 \mathrm{~N} \cdot \mathrm{m}$
1.
$$
\begin{aligned}
h c & =\frac{6.626 \times 10^{-34} \cdot 2.998 \times 10^8}{1.6 \times 10^{-19} \cdot 10^6 \cdot 10^{-15}} \
& =1240 \mathrm{MeV} \cdot \mathrm{fm}
\end{aligned}
$$
2.
$$
\begin{aligned}
\hbar c & =\frac{h c}{2 \pi} \
& =197.6 \mathrm{MeV} \cdot \mathrm{fm}
\end{aligned}
$$
3.
$$
\begin{aligned}
\frac{e^2}{4 \pi \epsilon_0} & =\frac{\left(1.6 \times 10^{-19}\right)^2}{8.988 \times 10^9} \mathrm{~N} \cdot \mathrm{m}^2 \
& =\frac{2.301 \times 10^{-28}}{1.6 \times 10^{-19} \cdot 10^6 \cdot 10^{-15}} \mathrm{MeV} \cdot \mathrm{fm} \
& =1.44 \mathrm{MeV} \cdot \mathrm{fm}
\end{aligned}
$$
- Taking your values from above in $\mathrm{MeV} \cdot \mathrm{fm}$, calculate the fine structure constant $\alpha=\frac{e^2}{\hbar c \cdot 4 \pi \epsilon_0}$. Make sure to show all steps in your calculation.
- Which of the four fundamental interaction has its strength determined by $\alpha$ ?
1.
$$
\begin{aligned}
\alpha & =\frac{e^2}{\hbar c \cdot 4 \pi \epsilon_0} \
& =\frac{1.44}{197.6} \
& =7.3 \times 10^{-3} \approx \frac{1}{137}
\end{aligned}
$$
- The electromagnetic interaction
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