Lecture

Relativistic Kinematics: Experiments and Doppler Shift

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Description

This lecture covers experiments related to relativistic kinematics, including the detection of mu-mesons at the Polytechnic University and the Doppler shift phenomenon. It discusses the detection of muons on Earth's surface, the longitudinal Doppler effect for acoustic waves, and the Moessbauer effect principle. The temperature effect on the Moessbauer effect is explored, along with the absorption detected during solid heating and the magnetization's role in determining lines and distances.

In MOOC

Mechanics: Change of Reference Frame and Relativity

This module begins by explaining how to apply Newton's mechanics when the frame of reference is accelerated. Translations and rotations are considered in Lesson 15, in which context the famous "Coriolis force" comes to the fore. The Earth is a natural reference frame for us earthbound observers. However, there are experiments such as the Foucault pendulum, in which the Earth's rotation has a clear effect on the dynamics observed locally on the Earth's surface. Other less sensitive experiments, measured with

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Related concepts (27)

Pion

In particle physics, a pion (or a pi meson, denoted with the Greek letter pi: _Pion) is any of three subatomic particles: _Pion0, _Pion+, and _Pion-. Each pion consists of a quark and an antiquark and is therefore a meson. Pions are the lightest mesons and, more generally, the lightest hadrons. They are unstable, with the charged pions _Pion+ and _Pion- decaying after a mean lifetime of 26.033 nanoseconds (2.6033e-8 seconds), and the neutral pion _Pion0 decaying after a much shorter lifetime of 85 attoseconds (8.

Nuclear emulsion

A nuclear emulsion plate is a type of particle detector first used in nuclear and particle physics experiments in the early decades of the 20th century. It is a modified form of photographic plate that can be used to record and investigate fast charged particles like alpha-particles, nucleons, leptons or mesons. After exposing and developing the emulsion, single particle tracks can be observed and measured using a microscope.

Mössbauer effect

The Mössbauer effect, or recoilless nuclear resonance fluorescence, is a physical phenomenon discovered by Rudolf Mössbauer in 1958. It involves the resonant and recoil-free emission and absorption of gamma radiation by atomic nuclei bound in a solid. Its main application is in Mössbauer spectroscopy. In the Mössbauer effect, a narrow resonance for nuclear gamma emission and absorption results from the momentum of recoil being delivered to a surrounding crystal lattice rather than to the emitting or absorbing nucleus alone.

Lepton

In particle physics, a lepton is an elementary particle of half-integer spin (spin ) that does not undergo strong interactions. Two main classes of leptons exist: charged leptons (also known as the electron-like leptons or muons), and neutral leptons (better known as neutrinos). Charged leptons can combine with other particles to form various composite particles such as atoms and positronium, while neutrinos rarely interact with anything, and are consequently rarely observed. The best known of all leptons is the electron.

Mu2e

Mu2e, or the Muon-to-Electron Conversion Experiment, is a particle physics experiment at Fermilab in the US. The goal of the experiment is to identify physics beyond the Standard Model, namely, the conversion of muons to electrons without the emission of neutrinos, which occurs in a number of theoretical models. Project co-spokesperson Jim Miller likens this process to neutrino oscillation, but for charged leptons. Observing this process will help to narrow the range of plausible theories.

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