Supersymmetry: Difference between revisions

Latest revision as of 23:12, 27 November 2016

Supersymmetry is the postulated existence of one-to-one correspondence between fundamental fermions and fundamental bosons as predicted by string theory. This proposed symmetry has not been observed, but could hold true at higher energies than presently observable. [2] [3] Supersymmetry acts as an expansion of the standard model of particle physics. The discovery of the higgs boson in 2012 completed the standard model, but it still leaves some questions unanswered. Supersymmetry aims to fill gaps left by the standard model and explain the phenomena of particle interactions. [1]

Implications

Supersymmetry would more than double the number of standard model particles because it requires each known particle, as well as a few undiscovered ones, to have a superpartner (shown in the outer ring of the diagram below). Supersymmetry may provide a means for unifying the strong and weak nuclear forces in addition to yielding explanations for the existence and composition of dark matter. [1] [2]

[1]

Applications

The way tiny particles interact have extremely large-scale ramifications, such as our understanding of how certain natural phenomena such as black holes and galaxies exist as they do. For instance, gravity may appear to be a simple concept, but it actually would require supersymmetry or a similar expansion upon the standard model in order to acquire a solid explanation. [5] Proof of supersymmetry would likely not be applicable to daily life in any way, however, it would shape our understanding of both particle and astrophysics, and determine the path of future scientific questions.

History

Hironari Miyazawa was the first person to propose supersymmetry, in a theory relating mesons and baryons. Because of how broken his symmetry was, his work was largely ignored. Two groups of scientists all independently began working on a supersymmetry in quantum field theory around the same time, J. L. Gervais and B. Sakita(1971), Yu. A. Golfand and E. P. Likhtman(1971), and D. V. Volkov and V. P. Akulov(1972). The Gervais-Sakita works arose because of an early version of string theory. The model proposed by Pierre Fayet, known as the Minimal Supersymmetric Standard Model, was the first realistic model in superstring theory proposed.[1] [3] [4]

External Sources and Links

[1] "New Particle, New Questions," NewScientist, ed. July 14, 2012.

[1] Introduction to Supersymmetry by Hitoshi Murayama

[2] String Theory and Supersymmetry for Dummies

[3] Supersymmetry by Christine Sutton

[5] The Quantum Universe (pp. 196-207) by Brian Cox and Jeff Forshaw

References

"New Particle, New Questions," NewScientist, ed. July 14, 2012.

https://en.wikipedia.org/wiki/Supersymmetry

http://hitoshi.berkeley.edu/public_html/susy/susy.html

http://www.britannica.com/science/supersymmetry

http://www.dummies.com/how-to/content/string-theory-the-history-of-supersymmetry.html

The Quantum Universe (pp. 196-207) by Brian Cox and Jeff Foresaw

@@ Line 1: / Line 1: @@
-Short Description of Topic
+Supersymmetry is the postulated existence of one-to-one correspondence between fundamental fermions and fundamental bosons as predicted by string theory. This proposed symmetry has not been observed, but could hold true at higher energies than presently observable. [2] [3] Supersymmetry acts as an expansion of the standard model of particle physics. The discovery of the higgs boson in 2012 completed the standard model, but it still leaves some questions unanswered. Supersymmetry aims to fill gaps left by the standard model and explain the phenomena of particle interactions. [1]
-==The Main Idea==
+==Implications==
+Supersymmetry would more than double the number of standard model particles because it requires each known particle, as well as a few undiscovered ones, to have a superpartner (shown in the outer ring of the diagram below). Supersymmetry may provide a means for unifying the strong and weak nuclear forces in addition to yielding explanations for the existence and composition of dark matter. [1] [2]
-State, in your own words, the main idea for this topic
+[[File:mg21929331.200-1_800.jpg]]
+[1]
+==Applications==
+The way tiny particles interact have extremely large-scale ramifications, such as our understanding of how certain natural phenomena such as black holes and galaxies exist as they do. For instance, gravity may appear to be a simple concept, but it actually would require supersymmetry or a similar expansion upon the standard model in order to acquire a solid explanation. [5] Proof of supersymmetry would likely not be applicable to daily life in any way, however, it would shape our understanding of both particle and astrophysics, and determine the path of future scientific questions.
-===A Mathematical Model===
+==History==
+Hironari Miyazawa was the first person to propose supersymmetry, in a theory relating mesons and baryons. Because of how broken his symmetry was, his work was largely ignored. Two groups of scientists all independently began working on a supersymmetry in quantum field theory around the same time, J. L. Gervais and B. Sakita(1971), Yu. A. Golfand and E. P. Likhtman(1971), and D. V. Volkov and V. P. Akulov(1972). The Gervais-Sakita works arose because of an early version of string theory. The model proposed by Pierre Fayet, known as the Minimal Supersymmetric Standard Model, was the first realistic model in superstring theory proposed.[1] [3] [4]
-What are the mathematical equations that allow us to model this topic.  For example <math>{\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net}</math> where '''p''' is the momentum of the system and '''F''' is the net force from the surroundings.
+== See also ==
+[[Quantum Theory]]
-===A Computational Model===
+[[Einstein's Theory of General Relativity]]
-How do we visualize or predict using this topic. Consider embedding some vpython code here [https://trinket.io/glowscript/31d0f9ad9e Teach hands-on with GlowScript]
+[[String Theory]]
-==Examples==
+[[Higgs field]]
-Be sure to show all steps in your solution and include diagrams whenever possible
+[[Elementary Particles and Particle Physics Theory]]
-===Simple===
-===Middling===
-===Difficult===
-==Connectedness==
+==External Sources and Links==
-#How is this topic connected to something that you are interested in?
+[1] "New Particle, New Questions," NewScientist, ed. July 14, 2012.
-#How is it connected to your major?
-#Is there an interesting industrial application?
-==History==
+[http://hitoshi.berkeley.edu/public_html/susy/susy.html] Introduction to Supersymmetry by Hitoshi Murayama
-Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.
+[http://www.dummies.com/how-to/content/string-theory-the-history-of-supersymmetry.html] String Theory and Supersymmetry for Dummies
-== See also ==
+[http://www.britannica.com/science/supersymmetry] Supersymmetry by Christine Sutton
-Are there related topics or categories in this wiki resource for the curious reader to explore?  How does this topic fit into that context?
+[5] The Quantum Universe (pp. 196-207) by Brian Cox and Jeff Forshaw
-===Further reading===
+==References==
+"New Particle, New Questions," NewScientist, ed. July 14, 2012.
-Books, Articles or other print media on this topic
+https://en.wikipedia.org/wiki/Supersymmetry
-===External links===
+http://hitoshi.berkeley.edu/public_html/susy/susy.html
-[http://www.scientificamerican.com/article/bring-science-home-reaction-time/]
+http://www.britannica.com/science/supersymmetry
-==References==
+http://www.dummies.com/how-to/content/string-theory-the-history-of-supersymmetry.html
-This section contains the the references you used while writing this page
+The Quantum Universe (pp. 196-207) by Brian Cox and Jeff Foresaw
-[[Category:Which Category did you place this in?]]
+[[Category:Theory]]