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 Identifying gluon in Feynman diagram
  • · Replies 63 ·
3
Replies
63
Views
8K
Undergrad How do physicists know when they’ve found a Higgs boson?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Virtual Particles and Energy Scales
  • · Replies 3 ·
Replies
3
Views
2K
High School Is our cloud chamber showing correct tracks from U-238 decay chain?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is the KleinGordon Eq the Wave Eq for Spin0 Scalar particles
  • · Replies 1 ·
Replies
1
Views
1K
High School Calculating heat from decay of a radioactive isotope
  • · Replies 20 ·
Replies
20
Views
6K
Undergrad Can a Z Boson Decay to a Photon Affect Its Weak Charge?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What Are the Spin States of W Bosons and How Do They Affect Annihilation?
  • · Replies 1 ·
Replies
1
Views
2K
High School Is there anything smaller than quarks?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate LSZ formula and Field Strength renormalization factor
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Nuclear reactors and nuclear bombs
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad Possible ways to increase particle detector resolution?
  • · Replies 19 ·
Replies
19
Views
3K
Undergrad What Are the Key Differences Between Dirac and Majorana Masses?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Computation of anomalous dimension in MS scheme
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why Monte Carlo Simulations? What do they tell us?
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Anti-particle is particle that moves back in time ?
  • · Replies 12 ·
Replies
12
Views
2K
Undergrad What Are Pileups? Explanation & Analysis
  • · Replies 4 ·
Replies
4
Views
4K
Undergrad Matrix Elements via Feynman Diagrams
  • · Replies 1 ·
Replies
1
Views
4K
High School What particles make up an atom?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Question about Chirality and the Weak Interaction
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the Matter Field and How Does it Work in Quantum Field Theory?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate HIggs coupling to electroweak gauge bosons
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Weinberg angle in terms of Higgs mass
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Q: Binding energy per nucleon & energy released in reaction
  • · Replies 2 ·
Replies
2
Views
10K
High School How can you justify that the degree of instability inside a
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Why Plot Spin vs Mass^2 in Particle Physics?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad How does the photon propagator in Feynman diagrams relate to massless particles?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Photon Polarization: What are indices i and j?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Why use the mass of 2 electrons in calculation of Q for beta
  • · Replies 10 ·
Replies
10
Views
5K
Undergrad Question about plasma modeling
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Matching interaction terms and decay processes in standard model
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Why is the Integral of Dimensional Regularization Equal to 0?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Some fun (yet nice) questions on QFT
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Derivation of splitting function from cross section
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Casimir's Trick: Summing vs. Averaging Spin Configurations
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Electric charge as ##Q = T_{3} + Y##
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Schwartz QFT book, Problem 14.3
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Questions regarding DM and particle physics
  • · Replies 20 ·
Replies
20
Views
2K
High School Does Deep Inelastic Scattering Reveal the True Nature of Baryons?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad What does this symbol represent?
  • · Replies 5 ·
Replies
5
Views
2K
High School What is the meaning of decay mode IT in nuclear physics ?
  • · Replies 3 ·
Replies
3
Views
12K
Undergrad Double Blind Method Explained: Particle Physics & LHC
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Generation number conservation
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Why is antimatter difficult to create?
  • · Replies 19 ·
Replies
19
Views
4K
Undergrad Can We Neglect Electron Binding Energies in Beta Decay Calculations?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Invariant combination of SU(3) states
  • · Replies 1 ·
Replies
1
Views
2K
High School What is the Fastest Particle Speed at 0°C?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Understanding the S, U, and T Channels
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Understanding the Impact of Triggers on Integrated Luminosity in Detectors
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Dominant Feynman diagram for ##b \to s ~l^+ l^−##
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Can One Interaction Term Represent Multiple Vertices in Feynman Diagrams?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad ## \mu~\to e~ \gamma ## decay width and neutrino propagator
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Diameter of nanoparticles formed by dewetting of thin film
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why are delta resonances close in width
  • · Replies 2 ·
Replies
2
Views
2K
High School Can Water and Hydrocarbon Materials Effectively Shield Muons at Sea-Level?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Can a (uuu) baryon exist? If so, why wouldn't protons decay
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad A few questions about colour in QCD....
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Fission of 238U with high energy neutrons & other questions
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Unbroken electromagnetic symmetry
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Particle/planetary simulation with spacecraft
  • · Replies 6 ·
Replies
6
Views
2K
High School Do particles actually have a volume?
  • · Replies 2 ·
Replies
2
Views
2K
High School Standard model particle properties
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad Fission caused by positrons - in a fission fragment rocket?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad SU(3) Gauge Group: QCD & SM Invariance Explained
  • · Replies 27 ·
Replies
27
Views
6K
High School Alpha decay produces electron surplus?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Neutrino oscillation with very low energy neutrinos
  • · Replies 8 ·
Replies
8
Views
2K
High School Beta particle penetration in our cloud chamber?
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Does Repeated Particle Interactions Lead to Underestimating Energy Loss?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Commutation relation of hypercharge and SU(2) generators
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad What's currently going on with the KATRIN experiment
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Spinor indices on Yukawa coupling terms in electroweak sector
  • · Replies 1 ·
Replies
1
Views
2K
High School Can Classical Forces Explain Nuclear Fission and Fusion Reactions?
  • · Replies 1 ·
Replies
1
Views
2K
High School What is the least likely event that has been observed?
  • · Replies 17 ·
Replies
17
Views
4K
High School False Vacuum: Understanding its Impact on the Stability of the Universe
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad The propagator of the gauge field
  • · Replies 2 ·
Replies
2
Views
2K
Graduate QFT phi3 Feynman diagrams and correlation function
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Magnetic monopole discovery, but not the creation
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad What is the weak isospin of hadrons?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Kln theorem and initial-state singularities
  • · Replies 1 ·
Replies
1
Views
3K
High School Uniformity of Particles Formed After Big Bang
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Can Nuclear Decay Be Controlled?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad In a nuclear decay, where the dM energy goes?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Gibbs paradox for a small numbers of particles
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Are There Engineering Applications Of High Energy Physics?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Are There Other Massless Objects Besides Gluons and Photons?
  • · Replies 11 ·
Replies
11
Views
2K
Graduate Gauge and Lorentz invariance for Lagrangians
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Does an H proton weigh more than an He proton?
  • · Replies 15 ·
Replies
15
Views
3K
High School Mini Neutron Stars: What is the Smallest Possible?
  • · Replies 18 ·
Replies
18
Views
3K
Graduate Understanding Mu Pileup Profile in Analysis Papers
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Is a Muon/Anti-Muon Multiplier Possible?
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Covariant derivative of field strength tensor
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Euclidean action and Hamiltonian
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Why does uranium not have any stable isotopes?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate ##SU(2)## doublets, Majorana Fermions and Higgs
  • · Replies 11 ·
Replies
11
Views
2K
Graduate Resonance in Feynman lectures v1 ch23
  • · Replies 2 ·
Replies
2
Views
1K
High School Particle of M=0, Q=1, S=1/2, Confined?
  • · Replies 3 ·
Replies
3
Views
1K
Graduate Do Higgs bosons exist outside Switzerland?
  • · Replies 15 ·
Replies
15
Views
5K
Graduate Field operator eigenstates & Fock states(Hatfield's Sch rep)
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Analyses in HEP and bugs in codes
  • · Replies 5 ·
Replies
5
Views
1K
Graduate QFT at Finite Density: Refs & Resources for Zero T
  • · Replies 7 ·
Replies
7
Views
3K