How To Use Supersymmetry In A Sentence
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To break supersymmetry using the F-term, one can add chiral multiplets that transform as singlets under the gauge symmetries in the theory.
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So supersymmetry relates the particles that transmit forces to the particles that make up matter.
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If supersymmetry is discovered, it will also imply strong support for string theories that may even unify gravitation with the other three interactions.
The Nobel Prize in Physics 2004 - Information for the Public
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If global supersymmetry doesn't work, then what about local supersymmetry, i.e. supergravity?
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Before string theory won the full attention of the theoretical physics community, the most popular unified theory was an eleven dimensional theory of supergravity, which is supersymmetry combined with gravity.
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Being that the supersymmetry variation of the gravitino is the covariant derivative of the local spinor parameterizing the supersymmetry transformation, this would seem to always imply that the condition for supersymmetry is that there must exist a covariantly constant spinor field.
Matter v Antimatter II: Electroweak Baryogenesis
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Now there's a theory called supersymmetry, which doubles the number of particles in the standard model.
Brian Cox on CERN's supercollider
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He talked about the various unresolved problems of the Standard Model, and the hypothetical theory called supersymmetry, which connects particles of matter, called fermions, with particles that carry forces, called bosons.
NYT > Home Page
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When supersymmetry is broken, the fermions and bosons don't exactly match any more, the cancellation doesn't occur any more.
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But now put the hierarchy in, specifically low-scale supersymmetry and a TeV-scale gravitino mass.
String Theory is Losing the Public Debate
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If you break supersymmetry, if you do it the wrong way, you're going to get a cosmological constant that's much too big, and then you may well get associated problems, such as instabilities, runaways and so on.
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according to supersymmetry each force emerged separately during the big bang
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One framework to explain physics beyond the Standard Model is known as supersymmetry.
BBC News - Home
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Top among all of these theories was always supersymmetry, the idea that every known elementary particle has one or more heavier partners, known as sparticles.
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The other main reason I find string theory unattractive is that it introduces a great deal of baggage, e.g., in the form of extra dimensions and extra particles (I have a related objection to all the new parameters introduced by supersymmetry, which is pretty much required by string theory in my understanding).
The String Theory Backlash
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String theory fails to provide any mechanism to generate the very small nonzero masses that are observed in nature, or to remove the exact spacetime supersymmetry, which is not observed in nature.
Two cheers for string theory
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In 1971, Pierre Ramond of the University of Florida derived a string theory for fermions by discovering an early form of a new symmetry called supersymmetry, which connects bosons and fermions.
Euclid’s Window
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By the end of the year, it will reach 1,000 gigaelectronvolts--potentially ruling out some of the most favored variations of supersymmetry theory.
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This holds in both the ways used to study TeV-scale supersymmetry in this framework, namely the mirage mediation models where W is fine-tuned small and the large-volume models I have worked on.
String Theory is Losing the Public Debate
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There are branes to wrap, hierarchies to set, geometry to resolve, supersymmetry to break - a laundry list of processes and transitions that have to be described within in a string theory cosmology.
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Another part to my question: The existence of unbroken supersymmetry in a maximally symmetric supergravity solution, from what I understand, requires that the gravitino and all tensor fields vanish, and that the supersymmetry variation of the gravitino must also vanish.
Matter v Antimatter II: Electroweak Baryogenesis
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But if supersymmetry were unbroken, fermions and bosons would be exactly matched in the Universe, and that's not the way things are.
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Uniting these two different symmetries is highly nontrivial and leads us directly to supersymmetry and superstrings.
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This symmetry between forces and matter is called supersymmetry.
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With supergavity, we have the interesting possibility of breaking supersymmetry through gravitational couplings.
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It's helped physicists rule out certain supersymmetry models that predict otherwise.
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Another theory, supersymmetry, unites the building blocks - the quarks and the leptons - with the force carriers.
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His groundbreaking work in the areas of superstring theory, supersymmetry and supergravity has made him a leading expert on the topic.
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Being that the supersymmetry variation of the gravitino is the covariant derivative of the local spinor parameterizing the supersymmetry transformation, this would seem to always imply that the condition for supersymmetry is that there must exist a covariantly constant spinor field.
Matter v Antimatter II: Electroweak Baryogenesis
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Such a symmetry is called supersymmetry and, as you know, constitutes a large part of current research into particle physics.
Valuing Negativity
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String theory and/or supersymmetry, for example, involve higher dimensions of space that introduce new degrees of freedom and possible violations of space-time symmetries such as Lorentz symmetry.
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Being that the supersymmetry variation of the gravitino is the covariant derivative of the local spinor parameterizing the supersymmetry transformation, this would seem to always imply that the condition for supersymmetry is that there must exist a covariantly constant spinor field.
Matter v Antimatter II: Electroweak Baryogenesis
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And even if evidence of supersymmetry is found, the full explanation of the Higgs puzzle may well involve anthropic considerations that we talk about in our paper.
Anthropically Explaining Higgs
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But if supersymmetry were unbroken, fermions and bosons would be exactly matched in the Universe, and that's not the way things are.
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For a long time the only known example of a theory in which this cancellation takes place was supersymmetry.
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Uniting these two different symmetries is highly nontrivial and leads us directly to supersymmetry and superstrings.
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This has involved studies of supersymmetry and, most recently, extra dimensions of space.
