Definitions for sfermion

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Wiktionary

  1. sfermion(Noun)

    A sparticle of the class of spin-0 superpartners of ordinary fermions appearing in supersymmetric extensions to the Standard Model.

Freebase

  1. Sfermion

    In particle physics, a sfermion is the spin-0 superpartner particle of its associated fermion. In supersymmetric extensions to the Standard Model each particle has a superpartner with spin that differs by ¹⁄2. Fermions in the SM have spin-¹⁄2 and therefore sfermions have spin 0. In general the name sfermions is formed by prefixing an 's' to the name of its superpartner, denoting that it is a scalar particle with spin 0. For instance, the electron's superpartner is the selectron and the top quark's superpartner is the stop squark. One corollary from supersymmetry is that sparticles have the same gauge numbers as their SM partners. This means that sparticle–particle pairs have the same color charge, weak isospin charge, and hypercharge. Unbroken supersymmetry also implies that sparticle–particle pairs have the same mass. This is evidently not the case, since these sparticles would have already been detected. Thus, sparticles must have different masses from the particle partners and supersymmetry is said to be broken.

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"sfermion." Definitions.net. STANDS4 LLC, 2014. Web. 29 Jul 2014. <http://www.definitions.net/definition/sfermion>.

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