Question 1

The meson having which of the following quark contents has electric charge -e?

Accepted Answer

A)  $b \bar { c }$ 
B)  $\mathrm { c }\bar { c }$ 
C)  $\mathcal { u  }\bar {a }$ 
D)  $a \overline { s }$ 
E)  $\mathrm { u }\bar { c}$ 
A)  $b \bar { c }$ 
B)  $\mathrm { c }\bar { c }$ 
C)  $\mathcal { u  }\bar {a }$ 
D)  $a \overline { s }$ 
E)  $\mathrm { u }\bar { c}$

Question 2

Immediately after the Big Bang,how many types of interaction were there?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 3

The baryon having which of the following quark contents has electric charge -e?

Accepted Answer

A)  csd 
B)  dds 
C)  uud 
D)  bbc 
A)  csd 
B)  dds 
C)  uud 
D)  bbc

Question 4

Complete the following decay. $\mu$- $\rarr$ e- + ? + v$\mu$

Accepted Answer

A)  n 
B)  $\pi$0 
C)  $\mathrm { v } _ { e }$ 
D)  $\bar { v } _ { e }$ 
E) $\gamma$ 
A)  n 
B)  $\pi$0 
C)  $\mathrm { v } _ { e }$ 
D)  $\bar { v } _ { e }$ 
E) $\gamma$

Question 5

Which of the following is not a color associated with the strong charge?

Accepted Answer

A)  red 
B)  blue 
C)  yellow 
D)  green 
E)  All of these are colors for the strong charge. 
A)  red 
B)  blue 
C)  yellow 
D)  green 
E)  All of these are colors for the strong charge.

Question 6

Photons play the role of exchange particles for the electromagnetic field in a manner similar to _______,which play this role for the strong interaction.

Accepted Answer

A)  positrons 
B)  quarks 
C)  leptons 
D)  gluons 
E)  muons 
A)  positrons 
B)  quarks 
C)  leptons 
D)  gluons 
E)  muons

Question 7

What is the Q of the reaction p + p $\rarr$ p + p + $\pi$0? The rest mass of the proton is 938 MeV/c2 and of the neutral point is 135 MeV/c2.

Accepted Answer

A)  187 MeV 
B)  135 MeV 
C)  938 MeV 
D)  -187 MeV 
E)  -135 MeV 
A)  187 MeV 
B)  135 MeV 
C)  938 MeV 
D)  -187 MeV 
E)  -135 MeV

Question 8

The most recent unification of the fundamental forces was for the forces

Accepted Answer

A)  electromagnetism and gravity. 
B)  electromagnetism and strong. 
C)  strong and weak. 
D)  gravity and weak. 
E)  weak and electromagnetism. 
A)  electromagnetism and gravity. 
B)  electromagnetism and strong. 
C)  strong and weak. 
D)  gravity and weak. 
E)  weak and electromagnetism.

Question 9

If a reaction involving hadrons were written at the quark level as $\overline u { \text { d } } + \text { uud } \rightarrow \mathrm { d } \overline { \mathrm { s } } + \text { ? }$ ,what is the quark composition of the unknown last particle?

Accepted Answer

A)  udd 
B)  $\text{ ud}\overline { d}$ 
C)  uds 
D)  $\text { ud}\overline { s}$ 
E)  More information is needed. 
A)  udd 
B)  $\text{ ud}\overline { d}$ 
C)  uds 
D)  $\text { ud}\overline { s}$ 
E)  More information is needed.

Question 10

Which of the following is not an abbreviation for a quark flavor?

Accepted Answer

A)  u 
B)  s 
C)  b 
D)  t 
E)  r 
A)  u 
B)  s 
C)  b 
D)  t 
E)  r

Question 11

The Z0 boson is a mediator of weak interactions.It mass is 93 GeV/c2.About what is the range of this weak interaction?

Accepted Answer

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

Question 12

The electron antineutrino is which of the following types of particle?

Accepted Answer

A)  meson 
B)  baryon 
C)  hadron 
D)  lepton 
E)  quark 
A)  meson 
B)  baryon 
C)  hadron 
D)  lepton 
E)  quark

Question 13

A meson is

Accepted Answer

A)  a bound triplet of quarks. 
B)  a bound triplet of antiquarks. 
C)  a bound quark-antiquark pair. 
D)  a bound system of four quarks and one antiquark. 
A)  a bound triplet of quarks. 
B)  a bound triplet of antiquarks. 
C)  a bound quark-antiquark pair. 
D)  a bound system of four quarks and one antiquark.

Question 14

An accelerator that slams particles moving in opposite directions into one another is called a ___________.

Accepted Answer

A)  collider 
B)  synchrotron 
C)  linear accelerator 
D)  storage ring 
E)  de Broglie modulator 
A)  collider 
B)  synchrotron 
C)  linear accelerator 
D)  storage ring 
E)  de Broglie modulator

Question 15

In brane-world theory,there are more _______ than we are accustomed to.

Accepted Answer

A)  strings 
B)  gluons 
C)  monopoles 
D)  dimensions 
E)  leptons 
A)  strings 
B)  gluons 
C)  monopoles 
D)  dimensions 
E)  leptons

Question 16

Baryons are composed of

Accepted Answer

A)  any odd number of quarks. 
B)  three quarks of matching color. 
C)  three quarks of three different colors. 
D)  a colorless quark-antiquark pair. 
A)  any odd number of quarks. 
B)  three quarks of matching color. 
C)  three quarks of three different colors. 
D)  a colorless quark-antiquark pair.

Question 17

Complete the following decay. $\pi$+ $\rarr$ ? + v$\mu$

Accepted Answer

A)  $\mu$- 
B)  $\mu$0 
C)  $\pi$- 
D)  $\pi$0 
E)  $\mu$+ 
A)  $\mu$- 
B)  $\mu$0 
C)  $\pi$- 
D)  $\pi$0 
E)  $\mu$+

Question 18

The LEP/LEC is located in

Accepted Answer

A)  Germany and Poland. 
B)  Switzerland and France. 
C)  France and Belgium. 
D)  the United States and Canada. 
E)  Texas. 
A)  Germany and Poland. 
B)  Switzerland and France. 
C)  France and Belgium. 
D)  the United States and Canada. 
E)  Texas.

Exam 30: Particle Physics

The meson having which of the following quark contents has electric charge -e?

Immediately after the Big Bang,how many types of interaction were there?

The baryon having which of the following quark contents has electric charge -e?

Complete the following decay. μ\muμ - →\rarr→ e- + ? + v μ\muμ

Which of the following is not a color associated with the strong charge?

Photons play the role of exchange particles for the electromagnetic field in a manner similar to _______,which play this role for the strong interaction.

What is the Q of the reaction p + p →\rarr→ p + p + π\piπ 0? The rest mass of the proton is 938 MeV/c2 and of the neutral point is 135 MeV/c2.

The most recent unification of the fundamental forces was for the forces

If a reaction involving hadrons were written at the quark level as u‾ d + uud →ds‾+ ? \overline u { \text { d } } + \text { uud } \rightarrow \mathrm { d } \overline { \mathrm { s } } + \text { ? }u d + uud →ds+ ? ,what is the quark composition of the unknown last particle?

Which of the following is not an abbreviation for a quark flavor?

The Z0 boson is a mediator of weak interactions.It mass is 93 GeV/c2.About what is the range of this weak interaction?

The electron antineutrino is which of the following types of particle?

A meson is

An accelerator that slams particles moving in opposite directions into one another is called a ___________.

In brane-world theory,there are more _______ than we are accustomed to.

Baryons are composed of

Complete the following decay. π\piπ + →\rarr→ ? + v μ\muμ

The LEP/LEC is located in

Introduction

Force

Acceleration and Newtons Second Law of Motion

Motion With Constant Acceleration

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

Waves

Sound

Temperature and the Ideal Gas

Heat

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Current and Circuits

Magnetic Forces and Fields

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Reflection and Refraction of Light

Optical Instruments

Interference and Diffraction

Relativity

Early Quantum Physics and the Photon

Quantum Physics

Nuclear Physics

Filters

Complete the following decay. $\mu$ ^- $\rarr$ e^- + ? + v $\mu$

What is the Q of the reaction p + p $\rarr$ p + p + $\pi$ ⁰? The rest mass of the proton is 938 MeV/c² and of the neutral point is 135 MeV/c².

If a reaction involving hadrons were written at the quark level as $\overline u { \text { d } } + \text { uud } \rightarrow \mathrm { d } \overline { \mathrm { s } } + \text { ? }$ ,what is the quark composition of the unknown last particle?

The Z⁰ boson is a mediator of weak interactions.It mass is 93 GeV/c².About what is the range of this weak interaction?

Complete the following decay. $\pi$ ⁺ $\rarr$ ? + v_$\mu$