collision momentum
121Finnish Civil War — Tampere s civilian buildings destroyed in the civil war. Date …
122Tachyon — A tachyon (from the Greek polytonic|ταχυόνιον, takhyónion , from polytonic|ταχύς, takhýs , i.e. swift, fast) is any hypothetical particle that travels at faster than light speed. The first description of tachyons is attributed to German physicist …
123Impact event — Artist s impression of a major impact event. The collision between Earth and an asteroid a few kilometers in diameter may release as much energy as several million nuclear weapons detonating simultaneously. An impact event is the collision of a… …
124Jet (particle physics) — A jet is a narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon in a particle physics or heavy ion experiment. Because of QCD confinement, particles carrying a color charge, such as quarks, cannot exist in… …
125Matter creation — is the process inverse to particle annihilation. It is the conversion of massless particles into one or more massive particles. This process is the time reversal of annihilation. Since all known massless particles are bosons and the most familiar …
126Impact attenuator — An impact attenuator, also known as a crash cushion or crash attenuator or cowboy cushions, is a device intended to reduce the damage done to structures, vehicles, and motorists resulting from a motor vehicle collision. Impact attenuators are… …
127Intrabeam Scattering — (IBS) is an effect in accelerator physics where collisions between particles couple the beam emittance in all three dimensions. This generally causes the beam size to grow. In proton accelerators, intrabeam scattering causes the beam to grow… …
128Jet quenching — In ultra relativistic heavy ion collisions at center of mass energy of 5.5 TeV at the Large Hadron Collider (LHC), interactions between the high momentum Parton and the hot, dense medium produced in the collisions, are expected to lead to jet… …
