23 relations: Antiparticle, B − L, Baryon number, Conservation law, Electromagnetism, Grand Unified Theory, Gravity, Helicity (particle physics), Higgs boson, Lepton number, Mathematical formulation of the Standard Model, Noether's theorem, Particle, Particle physics, Proton, Proton decay, Quantum number, Quark, Radioactive decay, SO(10) (physics), Standard Model, Weak hypercharge, X and Y bosons.
In particle physics, every type of particle has an associated antiparticle with the same mass but with opposite physical charges (such as electric charge).
In high energy physics, B − L (pronounced "bee minus ell") is the difference between the baryon number (B) and the lepton number (L).
In particle physics, the baryon number is a strictly conserved additive quantum number of a system.
Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.
The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.
Christmas traditions vary from country to country.
In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves over time.
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.
A Grand Unified Theory (GUT) is a model in particle physics in which, at high energy, the three gauge interactions of the Standard Model which define the electromagnetic, weak, and strong interactions, or forces, are merged into one single force.
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
In particle physics, helicity is the projection of the spin onto the direction of momentum.
The Higgs boson is an elementary particle in the Standard Model of particle physics.
In particle physics, lepton number (historically also called lepton charge) is a conserved quantum number representing the difference between the number of leptons and the number of antileptons in an elementary particle reaction.
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.
New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.
New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
Noether's (first) theorem states that every differentiable symmetry of the action of a physical system has a corresponding conservation law.
In the physical sciences, a particle (or corpuscule in older texts) is a small localized object to which can be ascribed several physical or chemical properties such as volume, density or mass.
Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation.
In particle physics, proton decay is a hypothetical form of radioactive decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron.
Quantum numbers describe values of conserved quantities in the dynamics of a quantum system.
A quark is a type of elementary particle and a fundamental constituent of matter.
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
In particle physics, SO(10) refers to a grand unified theory (GUT) based on the spin group Spin(10).
The Standard Model of particle physics is the theory describing three of the four known fundamental forces (the electromagnetic, weak, and strong interactions, and not including the gravitational force) in the universe, as well as classifying all known elementary particles.
In the Standard Model of electroweak interactions of particle physics, the weak hypercharge is a quantum number relating the electric charge and the third component of weak isospin.
In particle physics, the X and Y bosons (sometimes collectively called "X bosons") are hypothetical elementary particles analogous to the W and Z bosons, but corresponding to a new type of force predicted by the Georgi–Glashow model, a grand unified theory.
2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.
2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.