Changes between Version 32 and Version 33 of HeavyN


Ignore:
Timestamp:
Nov 14, 2018 7:02:24 AM (5 weeks ago)
Author:
richardphysics
Comment:

Add Dirac Lagrangian details + update contact details

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  • HeavyN

    v32 v33  
    33=== Contact Author ===
    44Richard Ruiz
    5 * University of Durham (IPPP)
    6 * richard.ruiz AT durham.ac.uk
     5* Universite Catholique de Louvain
     6* richard.ruiz AT uclouvain.be
    77
    8 In collaboration with
    9 Daniel Alva and Tao Han [ [#Alva 1] ], and Celine Degrande, Olivier Mattelear, and Jessica Turner [ [#Degrande 2] ].
     8In collaboration with:
     9Daniel Alva and Tao Han [ [#Alva 1] ];
     10Celine Degrande, Olivier Mattelear, and Jessica Turner [ [#Degrande 2] ];
     11and Silvia Pascoli and Cedric Weiland [ [#Pascoli] ].
    1012
    1113
    1214== Model Description ==
    13 This effective model extends the Standard Model (SM) field content by introducing three right-handed (RH) neutrinos, which are singlets under the SM gauge symmetry (no color, weak isospin, or weak hypercharge charges). Each RH neutrino possesses one RH Majorana mass. After electroweak symmetry breaking, the Lagrangian with three heavy Majorana neutrinos ''N''i (for i=1,2,3) is given by [ [#Atre 3] ]
     15=== Majorana ===
     16This effective/simplified model extends the Standard Model (SM) field content by introducing three right-handed (RH) neutrinos, which are singlets under the SM gauge symmetry (no color, weak isospin, or weak hypercharge charges). Each RH neutrino possesses one RH Majorana mass. After electroweak symmetry breaking, the Lagrangian with three heavy Majorana neutrinos ''N''i (for i=1,2,3) is given by [ [#Atre 3] ]
    1417{{{
    1518#!latex
     
    4447The lepton number- and flavor-violating interactions of the Lagrangian allow for modeling of the Type I, Inverse, and Linear seesaw mechanisms at both lepton, hadron, and lepto-hadron colliders.
    4548
     49=== Dirac ===
     50The Dirac variant of the HeavyN model file contains the same interaction Lagrangian as the Majorana case. The heavy Dirac neutrinos' kinetic and mass terms are
     51{{{
     52#!latex
     53\begin{equation}
     54\mathcal{L}_{N} = \overline{N_k} i\!\not\!\partial N_k - m_{N_k} \overline{N_k}N_k, \quad k=1,\dots,3.
     55\end{equation}
     56}}}
     57
    4658== QCD Corrections ==
    4759The above Lagrangian with Goldstone boson couplings and in the Feynman Gauge was implemented into FeynRules  2.3.10. QCD renormalization and R2 rational counter terms were determined using NLOCT 1.02 and FeynArts 3.8. Feynman rules were collected into a single UFO, available below.
     
    5264
    5365== Model Files ==
     66
     67=== Majorana ===
    5468 * [https://feynrules.irmp.ucl.ac.be/attachment/wiki/HeavyN/SM_HeavyN_NLO_UFO.tgz SM_HeavyN_NLO_UFO.tgz]: Standalone UFO folder.
    5569
     
    6175
    6276 * [https://feynrules.irmp.ucl.ac.be/attachment/wiki/HeavyN/SM_HeavyN_FilesWithUFO.tgz SM_HeavyN_FilesWithUFO.tgz]: Combination of SM_HeavyN_NLO_UFO.tgz and SM_HeavyN_Files.tgz.
     77
     78=== Dirac ===
    6379
    6480