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.
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Graduate What Is the Origin of Lead Isotope Pb-204?
- sderamus
- · Replies 3 ·
Graduate QCD Calculation for e+e- Annihilation: Quarks, Gluons, & Hadrons
- RedX
- · Replies 24 ·
Graduate What if one stand in the middle of a composite boson?
- luxiaolei
- · Replies 1 ·
Graduate Can Antiparticles Reverse the Arrow of Time?
- luxiaolei
- · Replies 12 ·
Undergrad What is decay length in particle physics?
- luxiaolei
- · Replies 2 ·
Graduate Is the Graviton Really Massless?
- FeDeX_LaTeX
- · Replies 6 ·
High School Physics Basics: Nucleus, Nuclide, Neutron, Electron & Proton
- nobodyuknow
- · Replies 6 ·
Graduate Explanation of minimum ionizing radiation
- bcrowell
- · Replies 4 ·
Graduate Nuclear force as residual color force
- wildemar
- · Replies 3 ·
Graduate Bethe-Bloch Formula: Charge and Energy Deposited by Particles
- PBurke1985
- · Replies 1 ·
Graduate Does the sum of perturbation expansions in QED and QCD converge?
- fermi
- · Replies 22 ·
LHC First Physics: Press Release & Info
- jal
- · Replies 10 ·
Graduate Cosmic rays - minimum ionizing particles ?
- RichardOsmond
- · Replies 4 ·
Graduate How many mesons and baryons are there?
- CarlB
- · Replies 12 ·
Graduate Can Loop Quantum Gravity Be Tested in Collider Experiments?
- yorik
- · Replies 1 ·
Graduate Calculating the Density of a Neutron
- FeDeX_LaTeX
- · Replies 6 ·
Undergrad Considering writing essay about laser fusion?
- jeebs
- · Replies 1 ·
Graduate Could Halo Nucleons Affect Electron Capture in Nuclear Decay?
- Riemannliness
- · Replies 1 ·
Graduate What is the basic idea behind lattice theory?
- RedX
- · Replies 6 ·
Graduate Exists Neutronium On Earth? Why Not Create?
- FeDeX_LaTeX
- · Replies 1 ·
Undergrad Inclusice & Exclusive processes?
- ansgar
- · Replies 1 ·
Graduate Is gravity repulsive at particle scales?
- Tipped
- · Replies 3 ·
Graduate Gamma ray spectroscopy: Germanium detector efficiency calibration.
- quantumlolz
- · Replies 2 ·
Graduate How is it also a graviton particle as in string theory
- clm321
- · Replies 4 ·
Graduate Solve Quadratic w/ Grassmann Variables & NxN Matrix
- SeaBeams
- · Replies 2 ·
High School When does the LHC find out if higgs boson exist?
- clm321
- · Replies 18 ·
Graduate What is the role of the Higgs boson in giving mass to particles?
- clm321
- · Replies 8 ·
Undergrad Pair Production Energy: Formula & Wavelength
- HarryDaniels
- · Replies 2 ·
Graduate Dirac-delta term in a non-relativistic interaction
- Montejo
- · Replies 2 ·
Graduate Can the Standard Model Work Without the Higgs Boson?
- JustinLevy
- · Replies 9 ·
Graduate LHC First Results: Summary and Analysis
- Demystifier
- · Replies 3 ·
Graduate Local vs. global charge conservation
- kexue
- · Replies 3 ·
Graduate Time dependent annihilation op
- LAHLH
- · Replies 3 ·
Graduate Gamma spectrum Na-22: Peak origins
- LucidWaker
- · Replies 2 ·
Graduate What are the implications of the possible P and CP breaking at RHIC?
- bcrowell
- · Replies 8 ·
Graduate Can You Build a Cyclotron at Home?
- higgsnerd137
- · Replies 6 ·
Graduate Is the electron and proton's mass affected when they form an atom?
- Dadface
- · Replies 12 ·
Graduate Coulomb barrier in alpha decay
- seerongo
- · Replies 6 ·
Graduate Purpose of tracking detectors with stereo design
- tgessler
- · Replies 1 ·
High School Are cyclotrons really use for some purpose
- Rajini
- · Replies 6 ·
Graduate What are space-like and time-like virtual photons?
- jeebs
- · Replies 80 ·
Graduate What is this H+ particle, is it related to the Higgs Bosons and is it proven?
- HarryDaniels
- · Replies 10 ·
Graduate Pion Annihilation: Can Neutral Pions Really Convert to Photons?
- TriTertButoxy
- · Replies 1 ·
Graduate What changes under charge conjugation
- FredMadison
- · Replies 4 ·
Graduate Why Do Matter-Antimatter Pairs Annihilate Instead of Sticking Together?
- quantumkiko
- · Replies 3 ·
Graduate Binding energy per nucleon for atoms of low mass number
- kihr
- · Replies 5 ·
Undergrad Explanation of radioactive decay
- TuAst
- · Replies 7 ·
Graduate Can positive energy nucleons be bound together in nuclear forces?
- JK423
- · Replies 11 ·
Graduate What is the relationship between the strong force and E=mc2?
- briansacks
- · Replies 3 ·
Graduate Scattering of a scalar particle on a spin-1/2 particle
- maverick280857
- · Replies 5 ·
Graduate Is the Top Quark Larger than a Proton?
- cbd1
- · Replies 3 ·
Graduate How Does the Higgs Field Affect Particle Speeds in Feynman Diagrams?
- Dmitry67
- · Replies 13 ·
Graduate Slow Neutron Fission in Uranium 235: Exploring the Why
- Leronira
- · Replies 3 ·
Graduate Is Three Particle Pion Decay Possible?
- Derivator
- · Replies 12 ·
Undergrad Where does the energy from Nuclear Fission comes from?
- Leronira
- · Replies 2 ·
Graduate Does Charmonium Decay into Two Photons Violate Parity Conservation?
- Derivator
- · Replies 2 ·
Graduate Optimizing ROI for Photon Attenuation Experiment
- cxh
- · Replies 8 ·
Graduate How do you interpret quadratic terms in the gauge field in a Lagrangian?
- QuantumSkippy
- · Replies 2 ·
Undergrad Link between momentum transfer and distance
- Derivator
- · Replies 1 ·
Graduate Advice on a derivation from Guage Fixing Lagrangian to Equation or motion?
- neorich
- · Replies 8 ·
Graduate Reactor Neutrons: Seeing Surface Area not Projected Cross Section?
- nuclear420
- · Replies 7 ·
Undergrad *Particles to biological cells?*
- p.p
- · Replies 9 ·
Graduate Density matrix to represent polarization, what is this? References anyone?
- maverick280857
- · Replies 12 ·
Graduate What is the physical interpretation of f(0) in the optical theorem?
- erwinscat
- · Replies 2 ·
Undergrad Weird question about Nuclear Weapons
- Mr. Goosemahn
- · Replies 9 ·
Graduate Why is there a mass defect in the nucleous?
- JK423
- · Replies 23 ·
Graduate What Causes a Nuclear Fizzle in Chain Reactions?
- Kronsteen
- · Replies 1 ·
Graduate How Are B-Bbar Pairs Produced at the LHCb?
- tgessler
- · Replies 1 ·
Graduate How is the threshold for Cerenkov counters calculated?
- erwinscat
- · Replies 1 ·
Graduate Radon: Explaining Cumulative Exposure Risk
- chalk72
- · Replies 3 ·
Graduate Spin of the Pion: Neutral Decay Proves Integral Spin
- maverick280857
- · Replies 2 ·
Graduate Does Charge Conjugation Flip Spin?
- maverick280857
- · Replies 6 ·
Graduate Can Laser Beam Increase Alpha-Decay of Uranium?
- mig29
- · Replies 2 ·
Graduate Is the spherical shape of atomic nuclei experimentally validated?
- talanum1
- · Replies 12 ·
Graduate Two questions about angular momentum in the nuclear shell model?
- jeebs
- · Replies 2 ·
Graduate Symmetry breaking domain walls
- JustinLevy
- · Replies 2 ·
Graduate Resources for pi-N scattering?
- maverick280857
- · Replies 13 ·
Undergrad How a centrifuge separates particles by density
- GRB 080319B
- · Replies 4 ·
Undergrad Floating Paper on an Electron Matrix
- MiguelQ
- · Replies 4 ·
Graduate Measuring Temperature of Particles in Motion
- Edi
- · Replies 2 ·
Graduate Is the Higgs Vacuum Energy-Momentum Affected by Spontaneous Symmetry Breaking?
- JustinLevy
- · Replies 8 ·
Graduate What is the significance of transverse mass in experimental physics?
- mborn
- · Replies 2 ·
Graduate What are the decay reactions of uranium-235 with neutron collisions?
- Froskoy
- · Replies 2 ·
Graduate What Are the Coefficients and Stable Ratios in the Nuclear Liquid Drop Model?
- aubfow
- · Replies 1 ·
I created a Black Hole in my Living Room
- Xog
- · Replies 2 ·
Undergrad Normalization, reweighting, and the scale factor:
- mborn
- · Replies 4 ·
High School Solving Radioactive Decay: Half-Life and Decay Problems
- Tedwerd
- · Replies 2 ·
Graduate How did Gibbs come up with the idea that particles are indistinguishable?
- kof9595995
- · Replies 4 ·
Graduate Particles Overview: Learn About Subatomic Particles
- Starproj
- · Replies 3 ·
Graduate What are the Feynman diagrams for tree-level 5-gluon scattering?
- earth2
- · Replies 5 ·
Undergrad Can Neutrons Emit Photons? Understanding the Science Behind It
- cragar
- · Replies 14 ·
Graduate Randomness of quantom particles.
- Jaxodius
- · Replies 7 ·
Graduate Questions about the baryon octet and decuplet?
- jeebs
- · Replies 4 ·
Graduate Virtual particles and Einstein energy relation
- superphillain
- · Replies 4 ·
Undergrad Internal forces on a system of particles
- johncena
- · Replies 7 ·
Graduate What Are the Four Degrees of Freedom in the Higgs Field?
- ryanwilk
- · Replies 13 ·
Graduate What is track momentum in nuclear emulsion experiments?
- mario25
- · Replies 4 ·
Graduate US Institutions Participating in LHC Experiments and Accelerator
- rhody
- · Replies 1 ·
Graduate What are the Benefits of Using Quark Diagrams in Particle Physics?
- FlagellumDei
- · Replies 6 ·
Graduate Penrose's "The Road to Reality" - Objection to Broken Electroweak Symmetry?
- torquil
- · Replies 4 ·