High Energy, Nuclear, Particle Physics Forum

Graduate Why is a particle's mass less than the sum of its parts?

Undergrad Calculating the energy of an electron

Graduate Higgsinos: An Old Theory Revisited - Possibility of Higgsinium Creation?

Graduate Energy released in fission reaction

Graduate Top quark and matter-antimatter

Graduate How Many Types of Quarks Are There?

Undergrad How do protons get detected in particle physics?

Graduate Calculating the Lifetime of J/ψ Meson Using the Uncertainty Principle

Graduate What do they expect from the Large Hadron Collider ?

Graduate How do Silicon PIN photodiodes convert alpha particles into electrical signals?

Graduate Can pair production happen in vacuum?

Undergrad How to identify and measure tracks in a bubble chamber experiment

Graduate Why spinning protons have precession under magnetic field?

Graduate What is the spin rate of a nuclear particle?

Graduate Electron vs. positron? / spin?

Graduate What type of particle has a size of 10^-21 m?

Undergrad Uranium-232 alpha decay with 5.32 MeV kinetic energy

Graduate Does the Pauli Exclusion Principle Apply to All Types of Particles and Atoms?

Undergrad Definition of nuclide re metastable states

Graduate Light outside of the event horizon

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Graduate How Does the Expansion of the Universe Affect Stars, Planets, and Atoms?

Graduate How can pentaquarks and tetraquarks be colour neutral?

Undergrad What is the difference between gamma decay and photons?

Graduate Single photon - how do they do this?

Undergrad Do photons and other point particles have mass?

Graduate Generalized parton distributions

Graduate What Are the Properties and Uses of Anti-Neutrinos?

Graduate Can chaining beta and positron decay create free energy?

Graduate Why protons and neutrons have spins?

Graduate Understanding Electron Orbits: Curved Space or Other Explanation?

Undergrad Energy produced in hydrogen-fluorine reaction forming HF

Undergrad The recoil of an electron receding from a photon

Undergrad Calculate Energy Req'd for 2 kmol HF from 2.0kg H and 38 kg F

Graduate Neutral pion decay into two photons at 120° angle

Undergrad Energy released from complete fusion of one mole of deuterium

Graduate What is the 'Power' equation for a single 'Planck Energy Photon'?

Graduate There are said to be eight gluons

Graduate Meaning of older nuclear reaction notation like p(p,n)Δ++

Graduate Van der Waerden's Derivation of the Dirac Equation

Graduate How do we determine the magnitude of the nuclear force?

Graduate Detection of 10^-21 m Particles - Ray Veldkamp

Undergrad Why do particles radiate outward?

Undergrad Can subatomic particles undergo phase changes?

Graduate Solving Problem 10.3 from Peskin's QFT Book

Graduate Does π⁰ → γ + γ violate parity conservation?

Graduate How does energy conservation work in particle reactions?

Graduate Where to find this wigner's classical paper

Graduate When electrons and positrons collide they produce 2 photons

Graduate Testing gravity theories with Anti atoms

Graduate Why is QCD non-perturbative at low energies?

Graduate Image of subatomic particles from particle collision

Graduate Does the Lamb Shift Suggest Variability in Electron Mass Within Atoms?

Undergrad Neutron Activation: Isotope Identification by Half Life, Beta Particles

Graduate Ultra-high-energy cosmic ray protons detected in Utah

Graduate Particle that goes along with the force of gravity?

Graduate Multi-Channel Analyser: Scintillation Counter Usage

Graduate Can Particle Exchange Forces Lower Energy in Yukawa's Model?

Graduate Can an electron and proton annihilate each other?

Graduate Binding energy between nucleons vs BE inside nucleons

Undergrad To verify the estimated mass of a neutron

Undergrad Are there any antimatter calculations?

Undergrad Why don't neutral particles leave tracks in the bubble chamber?

Undergrad Why doesn't the electron crash into the proton in a hydrogen atom?

Undergrad Does beta decay leave an atom ionized?

Graduate What is the complete non-mathematical explanation for spin in particle physics?

Undergrad Searching for Answers: The Higgs Boson Particle

Graduate How do you observe a carrier particle?

Graduate Can a population inversion truly result in negative temperature?

Graduate Why do quark pairs have unequal masses and why do neutrinos oscillate?

Graduate Why does precession occur in Muon Spectroscopy?

Graduate Do Particles Possess Identical Characteristics?

Graduate Understanding Neutron Decay in Elementary Particle Physics

Graduate Can a Planck photon create Planck mass particle-antiparticle pairs?

Graduate How do virtual particle pairs annihilate in the vacuum?

Graduate Is the Electron Truly Indivisible?

Graduate Has bubble fusion been convincingly demonstrated?

Graduate How do particles behave when approaching a black hole?

Graduate Whether or not the particle performs complete oscillations?

Undergrad Finding an accessible paper on neutrino mass for undergraduates

Graduate Research on the pentaquark Θ 1540

Graduate Why Is Momentum of One Particle Used in the Breit-Wigner Cross Section Formula?

Graduate Nature of e=mc^2 and other miscelaneous questions

Undergrad What can we do with nuclear waste?

Graduate Does a massive object interact with its own gravitational field?

Undergrad What causes atoms to break up spontaneously?

Graduate What is a Preon? - Introduction to Preons

Graduate What controls/defines S=1 for Photons?

Graduate Why don't neutrinos decay like protons might?

Graduate Compton Effect and Transmutation

Graduate Protons Decaying: The Possibility and Impact of Proton Decay in the Universe

Graduate What forces the 3rd electron to form a 2s state?

Graduate Positron-Electron Annihilation - two questions

Graduate Answer: All Particles Carry Elementary Charge +-e?

Graduate Head-On Collisions of True Point Charges

Graduate Questions about EMP Effects in Spacecraft

Graduate Electron in an l=+1,0,-1 state hopping

Graduate What is a Multiring Trap? A Similarity to Penning Trap?