Changes between Version 4 and Version 5 of HeavyN
- Timestamp:
- Oct 30, 2015, 8:33:28 PM (9 years ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
HeavyN
v4 v5 1 1 === Author === 2 Richard Ruiz, University of Durham (IPPP) richard.ruiz[at]durham.ac.uk 3 2 Richard Ruiz 3 * University of Durham (IPPP) 4 * https://www.ippp.dur.ac.uk/~rruiz/ 5 * richard.ruiz AT durham.ac.uk 4 6 5 7 === Model Description === 6 8 7 8 9 After electroweak symmetry breaking, the effective Type I Seesaw Lagrangian is given by [#Atre [1]] 9 After electroweak symmetry breaking, the effective Type I Seesaw Lagrangian is given by [#Atre 1] 10 10 {{{ 11 11 #!latex … … 32 32 === Model Files === 33 33 34 * [http://feynrules.irmp.ucl.ac.be/wiki/typeIseesaw/heavyN.fr heavyN.fr]: Main model file. 35 * [http://feynrules.irmp.ucl.ac.be/wiki/typeIseesaw/heavyN.nb heavyN.nb]: Mathematica notebook file that loads FR and model, allows user to run quick sanity checks (optional), and outputs UFO file. 36 * [http://feynrules.irmp.ucl.ac.be/wiki/typeIseesaw/Seesaw_TypeI.tgz Seesaw_TypeI.tgz]: Standalone package containing heavyN.fr, heavyN.nb, massless.rst (default FR file), diagonalCKM.rst (default FR file), and sm.fr (default FR file). To unpack, use the command: 37 ~/home/$ tar -zxvf Seesaw_TypeI.tgz 38 * [http://feynrules.irmp.ucl.ac.be/wiki/typeIseesaw/Seesaw_TypeI_withUFO.tgz Seesaw_TypeI_withUFO.tgz]: Same as Seesaw_TypeI.tgz but with UFO folder generated using restrictions massless.rst (only massive fermions are top quark and Majorana neutrino) and diagonalCKM.rst (CKM matrix set to unity). 39 * [http://feynrules.irmp.ucl.ac.be/wiki/typeIseesaw/Seesaw_TypeI_UFO.tgz Seesaw_TypeI_UFO.tgz]: Standalone UFO folder as packaged in Seesaw_TypeI_withUFO.tgz. 40 41 Notes: 42 * The model contains five free parameters in addition to SM parameters: heavy neutrino mass mN, heavy neutrino with WN, and mixing matrix elements VeN, VmuN, and VtaN that parameterize the mixing between lepton flavor eigenstates (\nu_e, \nu_mu, \nu_tau) and heavy mass eigenstate N. '''Note''': VlN are restricted to be real in the model file. 43 34 44 === Validation === 45 This model file was validated using FeynRules v2.0.6 and MG5_aMC@NLO (MG5) v2.1.0. The results are reported in Ref. [#Alva 2]. 35 46 36 47 === References === 37 48 [=#Atre] [1] A. Atre, T. Han, S. Pascoli and B. Zhang, The Search for Heavy Majorana Neutrinos, JHEP '''0905''', 030 (2009) arXiv:0901.3589 [hep-ph] 38 49 39 [=# point2] [2] D. Alva, T. Han, R. Ruiz, Heavy Majorana neutrinos from {{{#!latex $W\gamma$}}} fusion at hadron colliders, JHEP '''1502''', 072 (2015), arXiv:1411.7305 [hep-ph]50 [=#Alva] [2] D. Alva, T. Han, R. Ruiz, Heavy Majorana neutrinos from {{{#!latex $W\gamma$}}} fusion at hadron colliders, JHEP '''1502''', 072 (2015), arXiv:1411.7305 [hep-ph] 40 51