High Energy, Nuclear, Particle Physics Forum

Post thread
Join expert discussion on High Energy, Nuclear, Particle Physics. Properties, relationships, and interactions of subatomic particles. Experimental and theoretical physics of nuclei and elementary particles.
Graduate Standard radionuclides used in energy detector calibration
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Solutions for problems in David Griffiths introduction?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Understanding that QCD is not CP invariant
  • · Replies 38 ·
2
Replies
38
Views
5K
Undergrad Down Quark: Composed of Up Quark and Electron?
  • · Replies 12 ·
Replies
12
Views
2K
Undergrad Need some help with trace calculation in an index theorem
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Diminishing returns from particle accelerators
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Nuclear knockout reactions - why does a proton knockout a neutron?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Orbital magnetic dipole moment of a proton
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Can 41Ca Decay to 40K through Proton Removal in Certain Situations?
  • · Replies 14 ·
Replies
14
Views
2K
Graduate Creating a new compound (involving K,Ca,H,N). Is it possible?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Radioactive decay question for K --> Ca
  • · Replies 11 ·
Replies
11
Views
1K
Undergrad Sgr A* better DM halo/core of 56KeV Fermions than BH
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad What does a quark content that is divided by a square root-mean?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad C-parity π+ π- π0: Is (-1)^L (+1) Correct?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Photon self-energy in the finite temperature field theory (real -time)
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Unbihexium could have a half-life of millions of years?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Are the daughter particles Ionized when the parent particle beta decays?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Particle behavior in Penning trap
  • · Replies 13 ·
Replies
13
Views
2K
Graduate Can Proton-K Potassium Fusion Create Calcium Isotopes?
  • · Replies 12 ·
Replies
12
Views
2K
High School Scientists may have discovered a new force of nature?
  • · Replies 42 ·
2
Replies
42
Views
5K
Graduate Operator Product Expansion as shown in Schwartz
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Two stage amplifier for a plastic scintillator
  • · Replies 6 ·
Replies
6
Views
2K
Graduate The vertex factors in QCD penguin operators
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Experience based on Millikan's experiment
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Algorithmic model for primary decay chains
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad B -> s µµ decays: Current status
  • · Replies 49 ·
2
Replies
49
Views
12K
High School Is Z0 Particle Real Without Flavor-Changing Interactions?
  • · Replies 5 ·
Replies
5
Views
1K
Graduate Nuclear Fusion Device Idea Utilizing Carbon Nano-Tubes: A Feasibility Analysis
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Fission vs Cluster Decay: What is the Difference?
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Calculation in Perturbative QCD by Muller
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Some Specific Questions Regarding Nuclides
  • · Replies 5 ·
Replies
5
Views
1K
Graduate Taylor series expansion of functional
  • · Replies 4 ·
Replies
4
Views
3K
Graduate What determines particle size in an atomizing spray nozzle?
  • · Replies 3 ·
Replies
3
Views
3K
High School A Slow Day In Physics Land. Is There A Holiday?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Pion Decay Rate: Verifying Decay Rate Formula
  • · Replies 13 ·
Replies
13
Views
5K
Undergrad What are these directional energetic particles?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Why Can't a Top Quark Decay Into a Charm or Up Quark?
  • · Replies 2 ·
Replies
2
Views
2K
High School Article: "Monster" antimatter particle "slams" into Antarctica
  • · Replies 10 ·
Replies
10
Views
2K
High School Nuclear fusion question -- Calculations for Hydrogen fusing into Helium
  • · Replies 20 ·
Replies
20
Views
4K
Undergrad How to determine matching coefficient in Effective Field Theory?
  • · Replies 1 ·
Replies
1
Views
2K
High School Radiation detector types/physics
  • · Replies 24 ·
Replies
24
Views
3K
Undergrad Books about Particle Physics and some clarifications
  • · Replies 7 ·
Replies
7
Views
2K
Graduate How do heavier nuclei maintain stability despite requiring energy for fusion?
  • · Replies 2 ·
Replies
2
Views
2K
High School Why Photon & Gluon are Exceptions from Higgs Field
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Statistic uncertainties in cross section plots - how to calculate?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Video lectures in Nuclear and Particle physics? (Undergraduate)
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad The LHC: A Giant Bent Klystron Tube?
  • · Replies 23 ·
Replies
23
Views
2K
Graduate Second derivative of Heaviside step function
  • · Replies 3 ·
Replies
3
Views
2K
High School The influence of Gravity on particles
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Dark Matter Numbers: Baryon & Lepton Conservation
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Quantum Tunneling in the Sun and Conservation of Energy
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What is the problem with the particle masses in the Standard Model?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Decay time of different types of bosons, hadrons and fermions
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Calculating Boosted Relativistic Normalization in Quantum Field Theory
  • · Replies 4 ·
Replies
4
Views
3K
Graduate How to find the gamma function for a fermion vacuum energy calculation?
  • · Replies 1 ·
Replies
1
Views
2K
High School What is meant by decay constant?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Strange quarks, Strange stars and Strangelets?
  • · Replies 6 ·
Replies
6
Views
2K
High School Understanding Mass Excess and Atomic Mass in Nuclear Physics
  • · Replies 7 ·
Replies
7
Views
3K
High School Why is air more dense closer to the Earth's surface? - particle's view
  • · Replies 41 ·
2
Replies
41
Views
5K
Undergrad What is the main challenge of high energy physics?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Causality for internel vertex in Feynaman diagrams
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Uncertainties of the hadronic corrections for electron and muon
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Question about Color Singlet State invariance under Unitary Matrix
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad The 1/v law for U-235 cross section
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Why is Uranium-236 less stable than Uranium-235 and Uranium-238?
  • · Replies 10 ·
Replies
10
Views
5K
Undergrad Valentine Monopole & Detector Constructions
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why do electrons never stop moving?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate How Do Free and Interaction Terms in Quantum Field Theory Affect Particle Mass?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Neutron vs electron degeneracy pressure
  • · Replies 9 ·
Replies
9
Views
4K
Undergrad Static potential accelerator question
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What Is the Self-Energy of an Electron?
  • · Replies 1 ·
Replies
1
Views
2K
High School Fundamental fields and vacuum energy
  • · Replies 6 ·
Replies
6
Views
2K
High School Differences between peak dose and peak dose rate
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad Understanding Plasma: Definition, Properties, and Temperature Considerations
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad How Conductive is Ionized Air? Investigating the Physics of Plasma Cutters
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What are some example Feynman diagrams in Yang-Mills theory?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why don’t two protons bind together?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Heaviest particle detected so far
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Distribution of protons inside a large nucleus
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad How Does CP Violation Relate to Matter-Antimatter Asymmetry in the Universe?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How many magnets are in the CMS experiment
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Why is the mass of the singlet meson higher than the octet mesons in QCD?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Tau mass -- How was it measured for the first time?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Shape of exclusion plots of WIMP
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Higgs particle and non-zero expected value in vacuum
  • · Replies 3 ·
Replies
3
Views
2K
High School Distance covered when 22 MeV gamma rays travel through air
  • · Replies 22 ·
Replies
22
Views
4K
Undergrad Positron decay direction from muon
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad What happens to the non-interacting part of protons in LHC collisions?
  • · Replies 1 ·
Replies
1
Views
1K
High School What can be interpreted if mass of product < mass of reactant?
  • · Replies 2 ·
Replies
2
Views
1K
High School How can we measure the wavelength of gamma-rays?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad What is the electric charge of a neutrino?
  • · Replies 6 ·
Replies
6
Views
2K
High School Why does a U-238 tamper increase nuclear yield of nuclear bomb?
  • · Replies 26 ·
Replies
26
Views
6K
Undergrad Understanding radioactivity levels of different isotopes
  • · Replies 14 ·
Replies
14
Views
3K
Undergrad Why Are B Mesons Long-Lived and How Does B-Tagging Work?
  • · Replies 8 ·
Replies
8
Views
3K
High School How does the Gamow window change for different reactions?
  • · Replies 4 ·
Replies
4
Views
2K
High School Which one is more efficient in generating high energy Gamma rays?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Understand selection rules in ##\beta##-decay/EC
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad How do you get polarized charged particles?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Tau Decay: More Pions, Less Ratio?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad How is the weak force related to a change in velocity?
  • · Replies 4 ·
Replies
4
Views
2K