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The lambda baryon Λ 0 was first discovered in October 1950, by V. D. Hopper and S. Biswas of the University of Melbourne, as a neutral V particle with a proton as a decay product, thus correctly distinguishing it as a baryon, rather than a meson, [2] i.e. different in kind from the K meson discovered in 1947 by Rochester and Butler; [3] they were produced by cosmic rays and detected in ...
The term baryon is derived from the Greek "βαρύς" (barys), meaning "heavy", because, at the time of their naming, it was believed that baryons were characterized by having greater masses than other particles that were classed as matter. Pentaquarks are exotic baryons composed of four quarks and one antiquark.
In particle physics, a baryon is a type of composite subatomic particle that contains an odd number of valence quarks, conventionally three. [1] Protons and neutrons are examples of baryons; because baryons are composed of quarks, they belong to the hadron family of particles. Baryons are also classified as fermions because they have half ...
The Lambda-CDM, Lambda cold dark matter, or ΛCDM model is a mathematical model of the Big Bang theory with three ... The missing baryon problem is claimed to be ...
the lambda baryon; a diagonal matrix of eigenvalues in linear algebra; a lattice; molar conductivity in electrochemistry; Iwasawa algebra; represents: one wavelength of electromagnetic radiation; the decay constant in radioactivity [45] function expressions in the lambda calculus; a general eigenvalue in linear algebra
Feynman diagram representing the decay of a lambda baryon Λ 0 b into a kaon K − and a pentaquark P + c. In July 2015, the LHCb collaboration at CERN identified pentaquarks in the Λ 0 b →J/ψK − p channel, which represents the decay of the bottom lambda baryon (Λ 0 b) into a J/ψ meson (J/ψ), a kaon (K −) and a proton (p).
and become a charm quark. Then, the proton would be transformed into a charmed baryon before it decayed into several particles, including a lambda baryon. In late May 1974, Robert Palmer and Nicholas P. Samios found an event generating a lambda baryon from their bubble chamber at Brookhaven National Laboratory. [27]
has a baryon number of +1 and hypercharge of −2, giving it strangeness of −3. It takes multiple flavor-changing weak decays for it to decay into a proton or neutron. Murray Gell-Mann 's and Yuval Ne'eman 's SU(3) model (sometimes called the Eightfold Way ) predicted this hyperon's existence, mass and that it will only undergo weak decay ...