Changes between Version 8 and Version 9 of MUED

Timestamp:

Nov 10, 2010, 10:09:49 AM (14 years ago)

Author:

Priscila de Aquino

Comment:

--

MUED

@@ -9 +9 @@
 === Description of the model & references ===
 
-One popular aproach to solve the Hierarchy Problem of the Standard Model is to extend space-time to higher dimensions. In this framework, the usual four-dimensional space-time is contained in a four-dimensional brane embedded in a large structure with N additional dimensions, the bulk.
+One popular approach to solve the Hierarchy Problem of the Standard Model is to extend space-time to higher dimensions. In this framework, the usual four-dimensional space-time is contained in a four-dimensional brane embedded in a large structure with N additional dimensions, the bulk.
 
-Here, we shall focus on the Universal Extra Dimensional theory, in which the usual Standard Model particles are free to propagate in the bulk. As a consequence, these particles will be seem on the effective theory as a tower of N 4-dimensional particles with the same quantum numbers, but with increasing masses. This is called the Kaluza-Klein tower. Momentum conservation in the 5-dimensional space-time generates a conserved Kaluza-Klein number, which implies that different Kaluza-Klein modes can not mix with eachother.
+Here, we shall focus on the Universal Extra Dimensional theory, in which the usual Standard Model particles are free to propagate in the bulk. As a consequence, these particles will be seem on the effective theory as a tower of N 4-dimensional particles with the same quantum numbers, but with increasing masses. This is called the Kaluza-Klein tower. Momentum conservation in the 5-dimensional space-time generates a conserved Kaluza-Klein number, which implies that different Kaluza-Klein modes can not mix with each other.
 
-In this implementation, a theory with five dimensions is considered, in which the fifth dimension is spatial and compactified on a S1/Z2 orbifold of radius R. We start from the most general five-dimensional Lagrangian. FeynRules derives the four-dimensional lagrangian automatically by imposing dimensional reduction and integratig out the extra-coordinate y.
+In this implementation, a theory with five dimensions is considered, in which the fifth dimension is spatial and compactified on a S1/Z2 orbifold of radius R. We start from the most general five-dimensional Lagrangian. FeynRules derives the four-dimensional lagrangian automatically by imposing dimensional reduction and integrating out the extra-coordinate y.
 
 The minimal Universal extra dimensional model is given in:
@@ -47 +47 @@
 In order to validate our implementation, we have checked 118 processes using a center-of-mass energy of 1400 GeV. It was done the following way:
    * '''Comparison of the built-in Madgraph Standard-Model and FeynRules generated''' '''Madgraph''' '''MUED for Standard Model''' '''processes.''' This comparison was done using squared matrix element at given phase-space points. 
-   * '''Comparison of the existing''' '''CalcHEP''' '''MUED (CH-ST) with the FeynRules generated ones in''' '''CalcHEP''' *,* '''Madgraph''' '''and Sherpa: CH-FR, MG-FR and SH-FR,''' through the calculation of several '''2-to-2''' cross-sections. All the checks performed were conclusive. 
+   * '''Comparison of the existing''' '''CalcHEP''' '''MUED (CH-ST) with the FeynRules generated ones in''' '''CalcHEP''', '''Madgraph''' '''and Sherpa: CH-FR, MG-FR and SH-FR,''' through the calculation of several '''2-to-2''' cross-sections. All the checks performed were conclusive. 
 
-   * Validation Table - SM + Fermions (Cross sections given in pb): ValidationMUED.jpg
+   * Validation Table - SM + Fermions (Cross sections given in pb): [/attachment/wiki/MUED/ValidationMUED.jpg ValidationMUED.jpg]
 
-   * Validation Table - Gauge (Cross sections given in pb): ValidationGauge.jpg
+   * Validation Table - Gauge (Cross sections given in pb): [/attachment/wiki/MUED/ValidationGauge.jpg ValidationGauge.jpg]