Lecture

Hadronic Contributions to Muon g-2

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture provides a comprehensive overview of the theory behind hadronic contributions to the muon g-2, covering topics such as the Hadronic Vacuum Polarization and Hadronic Light-by-Light contributions. The instructor discusses the historical measurements, present status, and the impact of these contributions on the experimental vs. Standard Model results. Various methods, including data-driven and lattice approaches, are explored to calculate these contributions, highlighting the challenges and uncertainties associated with hadronic physics.

Official source

Ontological neighbourhood

Physics

Particle physics: Standard Model

Related concepts (32)

Muon g-2

Muon g − 2 (pronounced "gee minus two") is a particle physics experiment at Fermilab to measure the anomalous magnetic dipole moment of a muon to a precision of 0.14 ppm, which is a sensitive test of the Standard Model. It might also provide evidence of the existence of new particles. The muon, like its lighter sibling the electron, acts like a tiny magnet. The parameter known as the "g factor" indicates how strong the magnet is and the rate of its gyration in an externally applied magnetic field.

Standard Model

The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetic, weak and strong interactions – excluding gravity) in the universe and classifying all known elementary particles. It was developed in stages throughout the latter half of the 20th century, through the work of many scientists worldwide, with the current formulation being finalized in the mid-1970s upon experimental confirmation of the existence of quarks.

Muon

A muon (ˈmjuːɒn ; from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 e and a spin of , but with a much greater mass. It is classified as a lepton. As with other leptons, the muon is not thought to be composed of any simpler particles; that is, it is a fundamental particle. The muon is an unstable subatomic particle with a mean lifetime of 2.2μs, much longer than many other subatomic particles.

Physics beyond the Standard Model

Physics beyond the Standard Model (BSM) refers to the theoretical developments needed to explain the deficiencies of the Standard Model, such as the inability to explain the fundamental parameters of the standard model, the strong CP problem, neutrino oscillations, matter–antimatter asymmetry, and the nature of dark matter and dark energy. Another problem lies within the mathematical framework of the Standard Model itself: the Standard Model is inconsistent with that of general relativity, and one or both theories break down under certain conditions, such as spacetime singularities like the Big Bang and black hole event horizons.

Data analysis

Data analysis is the process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, and is used in different business, science, and social science domains. In today's business world, data analysis plays a role in making decisions more scientific and helping businesses operate more effectively.

Related lectures (45)

Gauge Theories And Modern Particle Physics

Covers gauge theories, modern particle physics, the standard model, and field content.

The weak interactions of leptons

Delves into neutrino flavors, muon decay, LFU violation, and neutrino-quark scattering, exploring weak interactions of leptons.

Tests of QED at low energy: Anomalous magnetic moment

Explores tests of QED at low energy, focusing on the muon's anomalous magnetic moment and the electron's electric dipole moment.

Quantum Field Theory I: Introduction to Relativistic Quantum Field Theory

Offers a basic introduction to Relativistic Quantum Field Theory with a focus on fundamental physics principles and the Standard Model.

Overview of Particle Physics and Rutherford Scattering