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.
Undergrad Relation between tensor decomposition and helicity amplitude
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Cluster Decomposition.Vanishing of the connected part of the S matrix.
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Charge of the Vacuum in QED: Meaning & Implications
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the point of regularization?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Boltzmann particle distinguishability
  • · Replies 23 ·
Replies
23
Views
3K
Undergrad Interpreting SM Lagrangian "differential particle" terms
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Verifying the Relation in Yang-Mills Theory with a Scalar Field
  • · Replies 30 ·
2
Replies
30
Views
5K
Graduate Is There an Open Source Code for (a,n) Reaction Simulation?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Does a photon experience time while interacting with the weak force?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Hadronization in electron-positron collisions
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Understanding Integration by Parts in Quantum Field Theory
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Why do some mesons have = sign while others have ≈ in their composition?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Electroweak force and electrons
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Can a White Dwarf Collapse into a Neutron Star Without a Supernova?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Equation of motion Chern-Simons
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Isobar states decay probabilities
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Critical radius for nuclear reactions
  • · Replies 2 ·
Replies
2
Views
2K
Graduate How does Peskin derive equations 2.51 and 2.52 from equation 2.50 on page 27?
  • · Replies 2 ·
Replies
2
Views
3K
High School How does one change the isotope of an element?
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Decomposition of tensors into irreps (Georgi's book)
  • · Replies 15 ·
Replies
15
Views
7K
High School Could you travel using nuclear bombs?
  • · Replies 14 ·
Replies
14
Views
9K
High School Differential cross sections in Pythia
  • · Replies 5 ·
Replies
5
Views
3K
High School Color Confinement in Dense Regions?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate How Does the Majorana Neutrino Behave in Matter?
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad What is a realistic image of quarks?
  • · Replies 54 ·
2
Replies
54
Views
27K
High School Why Do Measured Nuclear Radii Differ from Predicted Values?
  • · Replies 6 ·
Replies
6
Views
3K
High School Electron - Up Quark Interactions
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Questions from Peskin & Schroeder 5.5 about Compton Scattering
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Temperature of beta decay radioisotope (Sr-90)
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad What happens to the rest of the mass in Beta+ decay involving a W+ boson?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Energy released upon ionization of different gases
  • · Replies 1 ·
Replies
1
Views
13K
Undergrad Differential cross-sectional area - Rutherford's experiment
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Vlasov-Fokker-Plank(VFP) equation from Boltzmann equation
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Does Charge Conjugation change the electromagnetic field?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Dissociative ionization Monte Carlo simulations
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What is the significance of the radioactive decay constant?
  • · Replies 1 ·
Replies
1
Views
10K
Undergrad Nuclear physics exercises translation from Dutch to English
  • · Replies 2 ·
Replies
2
Views
2K
High School Do electron antineutrinos interact with anything?
  • · Replies 16 ·
Replies
16
Views
5K
Undergrad Advancements in Cyclotron Particle Accelerator Design: A Scientist's Perspective
  • · Replies 2 ·
Replies
2
Views
2K
High School But WHY do antimatter and matter annihilate on contact?
  • · Replies 1 ·
Replies
1
Views
13K
Graduate Radioisotope-induced radioactivity in a protein molecule
  • · Replies 10 ·
Replies
10
Views
2K
High School Can Centrifuging Nuclear Waste Recover Rare Earth Elements?
  • · Replies 5 ·
Replies
5
Views
2K
High School Are Δ- and Δ+ Antiparticles of Each Other?
  • · Replies 2 ·
Replies
2
Views
12K
Undergrad Making World's Smallest MEMS Accelerometer
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Particle Physics vs Quantum Field Theory vs Standard Model
  • · Replies 3 ·
Replies
3
Views
19K
Graduate Why is unitarity important for validating effective field theories (EFT)?
  • · Replies 1 ·
Replies
1
Views
3K
High School Deriving Exponential Decay Equation
  • · Replies 3 ·
Replies
3
Views
2K
High School Do Helium Atoms Decay in Complete Isolation?
  • · Replies 1 ·
Replies
1
Views
15K
Graduate Notes on Cosmic rays - wave interactions in plasmas
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Interpretation of a cross section vs energy graph
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Are no chemical elements truly stable?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Intuitive Meaning of the Coleman-Mandula Theorem
  • · Replies 8 ·
Replies
8
Views
5K
Undergrad Yang-Mills Lagrangian: Is ##F^{\mu \nu}F_{\mu \nu}## a Number?
  • · Replies 6 ·
Replies
6
Views
3K
High School Matter & Antimatter: Attraction & Annihilation Evidence?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Redundancy in QCD: Is su(4)=su(2)xsu(2) Possible?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why is there this extra term for this correlation function?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Reference for the A field of the Weak Force
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Deadtime in Triggers: Explained
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Relativistic particle in non-uniform magnetic field (math)
  • · Replies 10 ·
Replies
10
Views
3K
High School A New Way to Make Fusion Reactors More Efficient
  • · Replies 4 ·
Replies
4
Views
16K
Graduate What Are the Sigma Barred Variables in Weinberg's Spin Statistics Equation?
  • · Replies 2 ·
Replies
2
Views
2K
High School When does an isotope begin to decay?
  • · Replies 5 ·
Replies
5
Views
16K
Undergrad Does Lattice QCD use virtual gluons?
  • · Replies 22 ·
Replies
22
Views
4K
Graduate Why Is the Mixed SU(2) Term Invariant in Scalar Multiplet Models?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Neutron Decay: Questions & Answers
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Pair Production in Empty Space
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Feynman Diagrams: ψφ → ψφ | Tips & Advice
  • · Replies 2 ·
Replies
2
Views
2K
High School Can Protons Decay at High Speeds without Colliding?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Photons per unit of Energy in Cherenkov radiation?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Gluons: Particles or Not? Evidence for their Particle Nature
  • · Replies 12 ·
Replies
12
Views
3K
High School Collider in Space? LHC Possibilities Beyond Earth
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Top Quark Production in p-p Collisions
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Standard Model (Forces interacting with Matter)
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Particle track resolution of the positive lambda particle
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Relation between chirality and spin
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Quark flavor and color independent?
  • · Replies 11 ·
Replies
11
Views
2K
High School Could a Particle Accelerator Create a Black Hole That Destroys Earth?
  • · Replies 108 ·
4
Replies
108
Views
21K
Graduate Plotting a Bragg Curve in SRIM
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Isotope clock reset debunks earth's age?
  • · Replies 16 ·
Replies
16
Views
7K
Undergrad Mass counter term is a derivative at tree level?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Vector Plasma vs. Variable Radioactive Decay
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Physical interpretation of a plasma (Te, Tv, Tr)
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Re-exciting organic scintillator
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Computing QED amplitudes in a collider
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Why is Proton Radiation this Rare in Nuclear Fission Decay?
  • · Replies 9 ·
Replies
9
Views
4K
Undergrad New: The CLIC 2018 Summary Report
  • · Replies 0 ·
Replies
0
Views
7K
Undergrad Why there is a general lack of neutrons in the Earth?
  • · Replies 2 ·
Replies
2
Views
2K
High School What is the Most Efficient Fuel for Fusion Reactors: T-D, D-D, or D+He-3?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Influence on Neutron spectrum due to energy loss of beam
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Where do I get raw data for plotting Bragg curve?
  • · Replies 2 ·
Replies
2
Views
6K
Undergrad What Does the Shape of the Higgs Potential Tell Us?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad LHC finishes proton-proton collisions in 2018
  • · Replies 57 ·
2
Replies
57
Views
15K
Graduate Fields transforming in the adjoint representation?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Why does the cross section for Dark Matter decrease with increasing mass?
  • · Replies 7 ·
Replies
7
Views
3K
High School Moving Center of Mass Collisions
  • · Replies 17 ·
Replies
17
Views
2K
Graduate Need help with the reaction of neutrons and electrons
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Why does LHC have 8 interaction points?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Long-range beam-beam interactions
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Why do we write that there are no right-handed neutrinos?
  • · Replies 8 ·
Replies
8
Views
4K
High School Electron scattering off of a nucleus
  • · Replies 13 ·
Replies
13
Views
3K