Minimal Supersymmetric Standard Model and User:BorgQueen: Difference between pages

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A '''Minimal Supersymmetric Standard Model''' is a class of proposed [[Supersymmetry|supersymmetric]] extensions to the [[Standard Model]]. Minimal supersymmetry assumes that the interaction between [[particles]] conserves [[R-parity]] and every particle has one [[superpartner]].

My contributions include:

</br>

[[Fermion|Fermions]] have [[boson]] superpartners, and bosons have fermion superpartners.

;WikiProject - Missing encyclopedic articles

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!Particle type

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!Particle

!Symbol

![[spin (physics)|Spin]]

!Superpartner

!Symbol

!Spin

|-

|

|Fermions

|*[[QuarkCubeb]]

*[[Winter cherry]] or ''[[Withania somnifera]]''

|'''q'''

|}

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

</br>

|[[Squark]]

;Extinct plants

|<math> \tilde{q} </math>

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|0

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

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|

*[[List of extinct plants]]

|[[Neutrino]]

|

|'''&nu;'''

|}

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

|[[Sneutrino]]

</br>

|<math> \tilde{\nu} </math>

;Translation from French Wiki articles

|0

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|-

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|*[[ElectronSkygazing]]

|

|'''e'''

|}

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

</br>

|[[Selectron]]

;Translation from German Wiki articles

|<math> \tilde{e} </math>

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|0

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

|-

|

*[[Merseburg Incantations]]

|[[Muon]]

*[[Whale louse]]

|'''&mu;'''

|

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

|}

|[[Smuon]]

</br>

|<math> \tilde{\mu} </math>

;Inventors

|0

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|-

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|*[[TauMarcel Vogel]]

|

|'''&tau;'''

|}

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

</br>

|[[Stau]]

;Film directors

|<math> \tilde{\tau} </math>

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|0

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

|-

|Bosons

|[[W and Z bosons|W]]

|'''W'''

|1

|[[Wino (particle)|Wino]]

|<math> \tilde{W} </math>

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

|-

|

*[[Giuliano Montaldo]]

|[[W and Z bosons|Z]]

|

|'''Z'''

|1}

</br>

|[[Zino]]

;Chemical compounds

|<math> \tilde{Z} </math>

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|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

|-

|

*[[Mercury cadmium telluride]]

|[[Photon]]

|

|'''&gamma;'''

|1}

</br>

|[[Photino]]

;Origin of Greek letters

|<math> \tilde{\gamma} </math>

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|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

|-

|

|*[[GluonAlpha (letter)]]

*[[Theta]]

|'''g'''

*[[Mu (letter)]]

|1

|*[[GluinoTau]]

|

|<math> \tilde{g} </math>

|}

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

</br>

|-

;Constellations

|Higgs bosons

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|[[Higgs Boson|Higgs]]

{| style="border:2px solid; align:center; width:90%; background:#efefef;"

|'''h''', '''A''', '''<math> H^0 </math>, <math> H^{+/-} </math>'''

|0

|[[Higgsinos]]

|<math> \tilde{h}, \tilde{A}, \tilde{H^0}, \tilde{H^{+/-}} </math>

|<math> \begin{matrix} \frac{1}{2} \end{matrix} </math>

|-

|

*[[Cancer (constellation)]]

*[[Leo (constellation)]]

|

|}

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<table style="float: right; margin-left: 1em; margin-bottom: 0.5em; width: 250px; border: #99B3FF solid 1px">

MSSM is an N=1 [[SUSY]] model in 3+1 [[Minkowski spacetime]] with <math>\frac{SU(3)\times SU(2) \times U(1)}{\mathbb{Z}_6}</math>. See [[SU(3)xSU(2)xU(1)]], [[supersymmetric gauge theory]].

<tr ><td ><center >'''[[Wikipedia:Babel]]'''</center ></td ></tr >

<tr ><td> {{User en-4}}{{user ko}}{{User ja-3}}{{User fr-1}}{{user de-1}}</td ></tr >

MSSM contains [[vector superfield]]s associated with the gauge group. It also contains the following [[chiral superfield]]s:

</table >

Edit count: [http://kohl.wikimedia.org/~kate/cgi-bin/count_edits?user=BorgQueen&dbname=enwiki]

<table border=2>

<tr><th>field</th><th>multiplicity</th><th>representation</th><th>'''Z'''₂-parity</th></tr>

<tr><td>q</td><td>3</td><td><math>(3,2)_{1/6}</math></td><td>-</td></tr>

<tr><td>u^c</td><td>3</td><td><math>(\bar{3},1)_{-2/3}</math></td><td>-</td></tr>

<tr><td>d^c</td><td>3</td><td><math>(\bar{3},1)_{1/3}</math></td><td>-</td></tr>

<tr><td>l</td><td>3</td><td><math>(1,2)_{-1/2}</math></td><td>-</td></tr>

<tr><td>e^c</td><td>3</td><td><math>(1,1)_1</math></td><td>-</td></tr>

<tr><td>H_u</td><td>1</td><td><math>(1,2)_{1/2}</math></td><td>+</td></tr>

<tr><td>H_d</td><td>1</td><td><math>(1,2)_{-1/2}</math></td><td>+</td></tr>

</table>

The [[electroweak]] symmetry is broken using the [[Higgs mechanism]]. There are also [[soft SUSY breaking term]]s in the [[action (physics)|action]]. Note that there is a PAIR of Higgs doublets. This is because MSSM forbids complex conjugation in the Yukawa potential. See [[holomorphy (SUSY)]]

The permissible ([[renormalizable]] and [[invariant]]) terms in the [[superpotential]] are H_uH_d, H_uqu^c, H_dqd^c and H_dle^c. The constant term, of course, is unphysical.

[[Image:quad_cancellation.png|frame|none|This is just one of the many cancelations to the quadratic divergence to the mass squared of the Higgs boson which occurs in [[MSSM]].]]

== External Links ==

* [http://pdg.lbl.gov/2004/listings/s046.pdf Particle Data Group review of MSSM and search for MSSM predicted particles]

[[Category:Supersymmetry]]

[[Category:Particle physics]]