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Particle Data Group

Index Particle Data Group

The Particle Data Group (or PDG) is an international collaboration of particle physicists that compiles and reanalyzes published results related to the properties of particles and fundamental interactions. [1]

84 relations: Arthur H. Rosenfeld, Baryon, Bottom quark, Cabibbo–Kobayashi–Maskawa matrix, Charm quark, Charmed baryons, Chinese Physics C, Committee on Data for Science and Technology, Delta baryon, Double beta decay, Down quark, Electron electric dipole moment, Elementary particle, Enriched Xenon Observatory, Eta meson, Event generator, Exotic meson, Gauss's law for magnetism, Gell-Mann–Okubo mass formula, Generation (particle physics), Glen Cowan, Glossary of string theory, Gluon, Hadron, Hassan Jawahery, Index of physics articles (P), INSPIRE-HEP, Iron group, Isospin, Isotopes of germanium, J/psi meson, K. S. Babu, Kaon, Lambda baryon, Lepton, List of Aalto University people, List of baryons, List of mesons, Magnetic monopole, Mathematical formulation of the Standard Model, Matter, Measurements of neutrino speed, Meson, Muon, NA62 experiment, ND experiment, Neutral particle, Neutral particle oscillation, Neutrino, Neutrino oscillation, ..., Nucleon, Omega baryon, Orders of magnitude (mass), Particle decay, Particle physics, Paul Söding, PDG, Pentaquark, Photon, Physics beyond the Standard Model, Pion, Quark, Quark model, Radiation length, Roper resonance, RPP, Sigma baryon, SND Experiment, SPring-8, Stanford Physics Information Retrieval System, Strange quark, T meson, Table of Clebsch–Gordan coefficients, Tau (particle), Top quark, Tribimaximal mixing, Up quark, Upsilon meson, W′ and Z′ bosons, Weak interaction, Weinberg angle, Wilkinson Microwave Anisotropy Probe, Xi baryon, Y(4140). Expand index (34 more) »

Arthur H. Rosenfeld

Arthur Hinton "Art" Rosenfeld (June 22, 1926 – January 27, 2017) was a UC Berkeley physicist and California energy commissioner, dubbed the "godfather of energy efficiency", for developing new standards which helped improve energy efficiency in California and subsequently worldwide.

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Baryon

A baryon is a composite subatomic particle made up of three quarks (a triquark, as distinct from mesons, which are composed of one quark and one antiquark).

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Bottom quark

The bottom quark or b quark, also known as the beauty quark, is a third-generation quark with a charge of − ''e''.

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Cabibbo–Kobayashi–Maskawa matrix

In the Standard Model of particle physics, the Cabibbo–Kobayashi–Maskawa matrix, CKM matrix, quark mixing matrix, or KM matrix is a unitary matrix which contains information on the strength of flavour-changing weak decays.

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Charm quark

The charm quark, charmed quark or c quark (from its symbol, c) is the third most massive of all quarks, a type of elementary particle.

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Charmed baryons

Charmed baryons are a category of composite particles comprising all baryons made of at least one charm quark.

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Chinese Physics C

Chinese Physics C (CPC) is a monthly peer-reviewed scientific journal published by the Chinese Physical Society along with the Institute of High Energy Physics, Chinese Academy of Sciences.

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Committee on Data for Science and Technology

The Committee on Data for Science and Technology (CODATA) was established in 1966 as an interdisciplinary committee of the International Council for Science.

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Delta baryon

The Delta baryons (or Δ baryons, also called Delta resonances) are a family of subatomic particle made of three up or down quarks (u or d quarks).

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Double beta decay

In nuclear physics, double beta decay is a type of radioactive decay in which two protons are simultaneously transformed into two neutrons, or vice versa, inside an atomic nucleus.

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Down quark

The down quark or d quark (symbol: d) is the second-lightest of all quarks, a type of elementary particle, and a major constituent of matter.

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Electron electric dipole moment

The electron electric dipole moment (EDM) de is an intrinsic property of an electron such that the potential energy is linearly related to the strength of the electric field: The electron's EDM must be collinear with the direction of the electron's magnetic moment (spin).

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Elementary particle

In particle physics, an elementary particle or fundamental particle is a particle with no substructure, thus not composed of other particles.

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Enriched Xenon Observatory

The Enriched Xenon Observatory (EXO) is a particle physics experiment searching for neutrinoless double beta decay of xenon-136 at WIPP near Carlsbad, New Mexico, U.S. Neutrinoless double beta decay (0νββ) detection would prove the Majorana nature of neutrinos and impact the neutrino mass values and ordering.

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Eta meson

The eta and eta prime meson are isosinglet mesons made of a mixture of up, down and strange quarks and their antiquarks.

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Event generator

Event generators are software libraries that generate simulated high-energy particle physics events.

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Exotic meson

Non-quark model mesons include.

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Gauss's law for magnetism

In physics, Gauss's law for magnetism is one of the four Maxwell's equations that underlie classical electrodynamics.

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Gell-Mann–Okubo mass formula

In physics, the Gell-Mann–Okubo mass formula provides a sum rule for the masses of hadrons within a specific multiplet, determined by their isospin (I) and strangeness (or alternatively, hypercharge) where a0, a1, and a2 are free parameters.

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Generation (particle physics)

In particle physics, a generation or family is a division of the elementary particles.

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Glen Cowan

Glen Cowan is a professor of Particle Physics at Royal Holloway, University of London.

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Glossary of string theory

This page is a glossary of terms in string theory, including related areas such as supergravity, supersymmetry, and high energy physics.

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Gluon

A gluon is an elementary particle that acts as the exchange particle (or gauge boson) for the strong force between quarks.

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Hadron

In particle physics, a hadron (ἁδρός, hadrós, "stout, thick") is a composite particle made of quarks held together by the strong force in a similar way as molecules are held together by the electromagnetic force.

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Hassan Jawahery

Hassan Jawahery is an Iranian-American physicist and former spokesperson for the BaBar Collaboration.

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Index of physics articles (P)

The index of physics articles is split into multiple pages due to its size.

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INSPIRE-HEP

INSPIRE-HEP is an open access digital library for the field of high energy physics (HEP).

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Iron group

In chemistry and physics, the iron group refers to elements that are in some way related to iron.

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Isospin

In nuclear physics and particle physics, isospin is a quantum number related to the strong interaction.

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Isotopes of germanium

Germanium (32Ge) has five naturally occurring isotopes, 70Ge, 72Ge, 73Ge, 74Ge, and 76Ge.

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J/psi meson

The (J/psi) meson or psion is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark.

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K. S. Babu

K.

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Kaon

In particle physics, a kaon, also called a K meson and denoted,The positively charged kaon used to be called τ+ and θ+, as it was supposed to be two different particles until the 1960s.

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Lambda baryon

The Lambda baryons are a family of subatomic hadron particles containing one up quark, one down quark, and a third quark from a higher flavour generation, in a combination where the wavefunction changes sign upon the flavour of any two quarks being swapped (thus differing from a Sigma baryon).

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Lepton

In particle physics, a lepton is an elementary particle of half-integer spin (spin) that does not undergo strong interactions.

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List of Aalto University people

The Aalto University is a Finnish university established on January 1, 2010, by the merger of the Helsinki University of Technology, the Helsinki School of Economics, and the University of Art and Design Helsinki.

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List of baryons

Baryons are composite particles made of three quarks, as opposed to mesons, which are composite particles made of one quark and one antiquark.

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List of mesons

Mesons are unstable subatomic particles composed of one quark and one antiquark.

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Magnetic monopole

A magnetic monopole is a hypothetical elementary particle in particle physics that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice versa).

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Mathematical formulation of the Standard Model

This article describes the mathematics of the Standard Model of particle physics, a gauge quantum field theory containing the internal symmetries of the unitary product group.

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Matter

In the classical physics observed in everyday life, matter is any substance that has mass and takes up space by having volume.

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Measurements of neutrino speed

Measurements of neutrino speed have been conducted as tests of special relativity and for the determination of the mass of neutrinos.

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Meson

In particle physics, mesons are hadronic subatomic particles composed of one quark and one antiquark, bound together by strong interactions.

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Muon

The muon (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 1/2, but with a much greater mass.

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NA62 experiment

The NA62 experiment (known as P-326 at the stage of proposal) is a particle physics experiment in the North Area of the SPS accelerator at CERN.

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ND experiment

Neutral Detector (ND) is a detector for particle physics experiments created by the team of physicists in the Budker Institute of Nuclear Physics, Novosibirsk, Russia.

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Neutral particle

In physics, a neutral particle is a particle with no electric charge.

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Neutral particle oscillation

In particle physics, neutral particle oscillation is the transmutation of a particle with zero electric charge into another neutral particle due to a change of a non-zero internal quantum number via an interaction that does not conserve that quantum number.

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Neutrino

A neutrino (denoted by the Greek letter ν) is a fermion (an elementary particle with half-integer spin) that interacts only via the weak subatomic force and gravity.

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Neutrino oscillation

Neutrino oscillation is a quantum mechanical phenomenon whereby a neutrino created with a specific lepton flavor (electron, muon, or tau) can later be measured to have a different flavor.

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Nucleon

In chemistry and physics, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus.

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Omega baryon

The omega baryons are a family of subatomic hadron (a baryon) particles that are represented by the symbol and are either neutral or have a +2, +1 or −1 elementary charge.

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Orders of magnitude (mass)

To help compare different orders of magnitude, the following lists describe various mass levels between 10−40 kg and 1053 kg.

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Particle decay

Particle decay is the spontaneous process of one unstable subatomic particle transforming into multiple other particles.

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Particle physics

Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation.

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Paul Söding

Paul Söding (born 20 February 1933 in Dresden, Germany) is a German physicist.

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PDG

PDG may refer to.

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Pentaquark

A pentaquark is a subatomic particle consisting of four quarks and one antiquark bound together.

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Photon

The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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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 origin of mass, the strong CP problem, neutrino oscillations, matter–antimatter asymmetry, and the nature of dark matter and dark energy.

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Pion

In particle physics, a pion (or a pi meson, denoted with the Greek letter pi) is any of three subatomic particles:,, and.

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Quark

A quark is a type of elementary particle and a fundamental constituent of matter.

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Quark model

In particle physics, the quark model is a classification scheme for hadrons in terms of their valence quarks—the quarks and antiquarks which give rise to the quantum numbers of the hadrons.

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Radiation length

In physics, the radiation length is a characteristic of a material, related to the energy loss of high energy, electromagnetic-interacting particles with it.

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Roper resonance

The Roper resonance, also known as P11(1440) or N(1440)1/2+, is an unstable baryon state/particle with a mass of about 1,440 MeV/c2 and with a relatively wide full Breit-Wigner width Γ ≈ 300 MeV/c2.

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RPP

RPP may refer to.

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Sigma baryon

The Sigma baryons are a family of subatomic hadron particles which have two quarks from the first flavour generation (up and/or down quarks), and a third quark from higher flavour generations, in a combination where the wavefunction does not swap sign when any two quark flavours are swapped.

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SND Experiment

Spherical Neutral Detector is a detector for particle physics experiments, successor of the Neutral Detector (ND), created by the team of physicists in the Budker Institute of Nuclear Physics, Novosibirsk, Russia.

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SPring-8

SPring-8 (an acronym of Super Photon Ring – 8 GeV) is a synchrotron radiation facility located in Hyōgo Prefecture, Japan, which was developed jointly by RIKEN and the Japan Atomic Energy Research Institute.

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Stanford Physics Information Retrieval System

The Stanford Physics Information Retrieval System (SPIRES) is a database management system developed by Stanford University.

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Strange quark

The strange quark or s quark (from its symbol, s) is the third lightest of all quarks, a type of elementary particle.

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T meson

T mesons are hypothetical mesons composed of a top quark and either an up, down, strange or charm antiquark.

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Table of Clebsch–Gordan coefficients

This is a table of Clebsch–Gordan coefficients used for adding angular momentum values in quantum mechanics.

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Tau (particle)

The tau (τ), also called the tau lepton, tau particle, or tauon, is an elementary particle similar to the electron, with negative electric charge and a 2.

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Top quark

The top quark, also known as the t quark (symbol: t) or truth quark, is the most massive of all observed elementary particles.

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Tribimaximal mixing

Tribimaximal mixing is a specific postulated form for the Pontecorvo–Maki–Nakagawa–Sakata (PMNS) lepton mixing matrix U. Tribimaximal mixing is defined by a particular choice of the matrix of moduli-squared of the elements of the PMNS matrix as follows: |U_|^2 & |U_|^2 & |U_|^2 \\ |U_|^2 & |U_|^2 & |U_|^2 \\ |U_|^2 & |U_|^2 & |U_|^2 \end.

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Up quark

The up quark or u quark (symbol: u) is the lightest of all quarks, a type of elementary particle, and a major constituent of matter.

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Upsilon meson

The Upsilon meson is a quarkonium state (i.e. flavourless meson) formed from a bottom quark and its antiparticle.

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W′ and Z′ bosons

In particle physics, W′ and Z′ bosons (or W-prime and Z-prime bosons) refer to hypothetical gauge bosons that arise from extensions of the electroweak symmetry of the Standard Model.

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Weak interaction

In particle physics, the weak interaction (the weak force or weak nuclear force) is the mechanism of interaction between sub-atomic particles that causes radioactive decay and thus plays an essential role in nuclear fission.

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Weinberg angle

The Weinberg angle or weak mixing angle is a parameter in the Weinberg–Salam theory of the electroweak interaction, part of the Standard Model of particle physics, and is usually denoted as.

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Wilkinson Microwave Anisotropy Probe

The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP), was a spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the cosmic microwave background (CMB) – the radiant heat remaining from the Big Bang.

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Xi baryon

The Xi baryons or cascade particles are a family of subatomic hadron particles which have the symbol Ξ and may have an electric charge (Q) of +2 e, +1 e, 0, or −1 e, where e is the elementary charge.

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Y(4140)

The Y(4140) particle is an electrically neutral exotic hadron candidate that is about 4.4 times heavier than the proton.

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Particle data group, Review of Particle Physics, The Particle Data Group.

References

[1] https://en.wikipedia.org/wiki/Particle_Data_Group

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