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Undergrad LHC finishes proton-proton collisions in 2018
- mfb
- · Replies 57 ·
Graduate Fields transforming in the adjoint representation?
- Juanchotutata
- · Replies 7 ·
Graduate Why does the cross section for Dark Matter decrease with increasing mass?
- kelly0303
- · Replies 7 ·
High School Moving Center of Mass Collisions
- metastable
- · Replies 17 ·
Graduate Is the reaction n+e⁻→Δ⁻+νe kinematically allowed?
- Ruslan_Sharipov
- · Replies 6 ·
Undergrad Why does LHC have 8 interaction points?
- kelly0303
- · Replies 2 ·
Undergrad Long-range beam-beam interactions
- kelly0303
- · Replies 5 ·
Graduate Why do we write that there are no right-handed neutrinos?
- Jason Wright
- · Replies 8 ·
High School Electron scattering off of a nucleus
- metastable
- · Replies 13 ·
Undergrad Why do stars only produce up to iron and nickel
- niko_.97
- · Replies 3 ·
Undergrad Reconciling alpha particle mass
- ezfzx
- · Replies 11 ·
High School Is the Strong Force Really Stronger Than the Electromagnetic Force?
- PhDnotForMe
- · Replies 3 ·
Graduate Steps in an electron's magnetic moment derivation
- kelly0303
- · Replies 1 ·
Graduate When to use small or large argument expansions of the plasma dispersion function?
- sreerajt
- · Replies 2 ·
Undergrad How accurate are radon detectors?
- SteveUSA
- · Replies 5 ·
High School Electron-positron bremsstrahlung
- metastable
- · Replies 31 ·
Undergrad Head-on collision of an electron and a proton
- Philip Land
- · Replies 3 ·
Graduate Increasing ion flux above 20mA in a small accelerator
- Javier Lopez
- · Replies 10 ·
Undergrad How Much Better Will Top and Higgs Mass Measurements Get?
- ohwilleke
- · Replies 2 ·
Undergrad Ion sensor for 1e20 ions/m3 density
- Javier Lopez
- · Replies 7 ·
Undergrad Nitrogen production in stellar nucleosynthesis?
- bbbl67
- · Replies 4 ·
Undergrad Effect of errors due to branching and acceptances
- CAF123
- · Replies 21 ·
Undergrad Has anyone worked on higher dimensional strings?
- vibe3
- · Replies 1 ·
Graduate Physical significance of growth rate in plasma
- sreerajt
- · Replies 2 ·
High School Why is the Higgs not considered 'a 5th force'?
- Gerinski
- · Replies 2 ·
Undergrad What Does Gauge Invariance Tell Us About Reality?
- Ghost Repeater
- · Replies 2 ·
Graduate New Covariant QED representation of the E.M. field
- Hans de Vries
- · Replies 3 ·
Undergrad Gluon creation and annihilation operators
- Paul Colby
- · Replies 4 ·
Graduate Fierz rearrangement with transverse W propagator in neutrino-electron scattering
- Radwan Parvez
- · Replies 1 ·
Graduate Neutrino Electron Scattering In The Standard Model Approach
- Radwan Parvez
- · Replies 3 ·
Undergrad Can a liquid or solid plasma exist?
- Eagle9
- · Replies 26 ·
High School Does background radiation have a diurnal variation?
- CWatters
- · Replies 6 ·
High School Is 3-point of H20 used for Kelvin a certain set of isotope
- swampwiz
- · Replies 3 ·
Graduate Citable reference for hadron mass and spin computation problems in QCD
- Urs Schreiber
- · Replies 2 ·
Undergrad Derivative changes under CPT transformations
- kelly0303
- · Replies 3 ·
Graduate Is the Mystery Particle Discovery Just Media Hype?
- Arman777
- · Replies 10 ·
Undergrad Are There Any Theories for the Mystery Particle at 28 GeV?
- Copernicuson
- · Replies 1 ·
Undergrad Can Cosmic Rays Be Economically Used in Particle Accelerators?
- john taylor
- · Replies 5 ·
Undergrad Measurement of Earth's mass - with neutrinos
- mfb
- · Replies 4 ·
High School Does a force act on a particle if it doesn't do work?
- iScience
- · Replies 3 ·
Graduate What does the Higgs boson tell us about electron mass?
- Nusc
- · Replies 3 ·
Undergrad What are the magnetic states of nucleons?
- Javier Lopez
- · Replies 10 ·
Graduate Lorentz invariance from Dirac spinor
- d8586
- · Replies 2 ·
Graduate Grassmann numbers and Fermions
- kelly0303
- · Replies 2 ·
Graduate Spin direction of quarks in a baryon
- bsaucer
- · Replies 1 ·
Graduate Yang-Mills 3 boson Lagrangian term in Peskin and Schroeder
- Liany
- · Replies 7 ·
High School Using muon-catalyzation toward Island of Stability?
- bbbl67
- · Replies 9 ·
High School How Does Proton Spin Influence Its Magnetic Field?
- Javier Lopez
- · Replies 3 ·
Undergrad Show How Theta Term in QCD Lagrangian is a Total Derivative
- Kara386
- · Replies 3 ·
High School Particle behavior and the Doppler effect
- itoero
- · Replies 26 ·
Graduate What does Schwarz's QFT theorem say about poles in Green's functions?
- Malamala
- · Replies 8 ·
Undergrad What is a Proton Made Of and What Does It Look Like Under a Microscope?
- Carpe Physicum
- · Replies 8 ·
High School Radioactive decay characteristics as measured by a dosimeter
- artis
- · Replies 6 ·
Undergrad How can I use the NIST XCOM online tool to calculate X and Gamma shielding?
- Javier Lopez
- · Replies 7 ·
Graduate Should fusion cross sections use momentum instead of energy?
- Javier Lopez
- · Replies 3 ·
Graduate How do Fusion/Fission Gamma Rays Compare?
- KangOfCanada
- · Replies 1 ·
Undergrad Calculate Muon Energy Loss with Bethe-Bloch Calculator
- Getterdog
- · Replies 4 ·
High School How Did Polonium-210 Contaminate London in the Litvinenko Case?
- Jimmy87
- · Replies 9 ·
High School Is Radioactive Decay Truly Random?
- SarahB
- · Replies 6 ·
Graduate What is the significance of large logarithms in RG calculations?
- Malamala
- · Replies 1 ·
High School Why is there still disagreement over the b quark's name?
- ohwilleke
- · Replies 14 ·
Undergrad Is a Photon the Quanta of Both Electromagnetic Field and Wave?
- gianeshwar
- · Replies 3 ·
Undergrad Particle interactions with matter
- Mahavir
- · Replies 4 ·
Graduate Understanding Decay Schemes to Interpreting Energy Levels and Symbols
- Mahavir
- · Replies 3 ·
Undergrad Charged particle acceleration across a potential
- Todd Masssure
- · Replies 7 ·
Graduate Renormalized Mass: What is Physically Going On?
- Malamala
- · Replies 2 ·
Graduate Why is only one 1PI diagram contributing to the 4-point function?
- Malamala
- · Replies 1 ·
Graduate Could the 3D percolation model explain Regge-Trajectories?
- Anashim
- · Replies 4 ·
Undergrad Is the standard model concept map accurate?
- crastinus
- · Replies 3 ·
Undergrad Where are the Beta Particles in a Muon Detector?
- Getterdog
- · Replies 3 ·
Undergrad Infinite range of E-M field vs finite age of particles
- nomadreid
- · Replies 7 ·
High School Does natural spontaneous fission create unstable isotopes like reactor fission?
- Jorge cunha
- · Replies 1 ·
Undergrad Path integral endpoints with vacuum state in QFT
- Silviu
- · Replies 12 ·
Graduate Are valence quarks real physical entities?
- HEPlover
- · Replies 4 ·
High School LHC -- Why no success except for the Higgs?
- Scott Tyler
- · Replies 27 ·
Undergrad Photoelectric absorption and low energy electron absorption
- Taylor_1989
- · Replies 4 ·
Undergrad LHCb Discovers Two New Particles
- Amrator
- · Replies 9 ·
High School Is the Force Between Two Protons Weaker Than Between Two Neutrons in Nucleons?
- Krushnaraj Pandya
- · Replies 11 ·
Undergrad Spin and helicity conservation in QED
- Silviu
- · Replies 3 ·
Undergrad Why does a Weyl spinor have two spin states if its helicity is definite?
- kelly0303
- · Replies 4 ·
Undergrad Uncertainty of MonteCarlo Simulations: Weight and Error Bars
- Aleolomorfo
- · Replies 2 ·
High School What are 'events' in LHC collisions and why does an excess indicate new particles?
- Zman
- · Replies 14 ·
Undergrad What is the definition of the transverse mode in QFT?
- Silviu
- · Replies 2 ·
Graduate Computing amplitude for divergent loop diagrams?
- Ramtin123
- · Replies 3 ·
Undergrad Feynman Rules for Scalar QED: LRZ Reading
- Silviu
- · Replies 5 ·
Graduate How are positrons used for fusion propulsion?
- Ozne
- · Replies 3 ·
Undergrad Creation of matter in the big bang
- oksuz_
- · Replies 2 ·
Undergrad Tachyon and antiparticle difference
- phoenix95
- · Replies 6 ·
Graduate What is the "real" Feynman propagator?
- quickAndLucky
- · Replies 7 ·
Undergrad S matrix elements with interacting vacuum states
- Silviu
- · Replies 4 ·
Graduate Is field theory needed in Regge-theory?
- Anashim
- · Replies 7 ·
Undergrad Can a particle transform into its counter anti-particle?
- MathematicalPhysicist
- · Replies 11 ·
Graduate Nuclear and Atomic energy levels
- QuarkDecay
- · Replies 3 ·
Graduate Three dimensional representation of ##U(1)\times SU(2)##
- Ramtin123
- · Replies 6 ·
Undergrad Why do we assume particles are free at infinity in the S matrix theory?
- Silviu
- · Replies 5 ·
Undergrad Constant field in the Lagrangian
- kelly0303
- · Replies 15 ·
High School Is the Coulomb Force Limited by the Pauli Exclusion Principle in Hydrogen Atoms?
- Abeer Arora
- · Replies 7 ·
Undergrad A Fermion interacts with the Higgs field
- Spinnor
- · Replies 2 ·
Undergrad What Determines Whether Radiation Passes Through Materials?
- Stephen22
- · Replies 5 ·
Graduate Deriving the Unitary Gauge of the Higgs Mechanism
- ohs
- · Replies 5 ·