Changes between Version 14 and Version 15 of HeavyN


Ignore:
Timestamp:
02/22/16 14:29:41 (4 years ago)
Author:
richardphysics
Comment:

Including NLO information 01

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  • HeavyN

    v14 v15  
    1 == SM + Type I Seesaw Mechanism ==
     1= SM + Heavy N at NLO in QCD =
    22
    3 
    4 === Implementation Author ===
     3==== Implementation Author ====
    54Richard Ruiz
    65* University of Durham (IPPP)
    76* richard.ruiz AT durham.ac.uk
    87
    9 In collaboration with Daniel Alva and Tao Han.
     8In collaboration with
     9Daniel Alva and Tao Han and
     10.
    1011
    11 === Model Description ===
    12 The Type I Seesaw 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), with each RH neutrino possessing one RH Majorana mass. After electroweak symmetry breaking, the effective Type I Seesaw Lagrangian with three heavy Majorana neutrinos ''N''i (for i=1,2,3) is given by [ [#Atre 1] ]
     12== Model Description ==
     13This 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), with each RH neutrino possessing 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 1] ]
    1314{{{
    1415#!latex
     
    4142}}}
    4243The mixing matrix elements V''lk'' parametrize the mixing between the (active) lepton flavor eigenstate ''l'' and the heavy mass eigenstate ''N''k that corresponds to mass mNk.
     44The lepton number- and flavor-violating interactions of the model
    4345
    44 === Model Files ===
     46== QCD Corrections ==
     47The 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. The UFO file, five massless quarks are assumed as are zero off-diagonal CKM matrix entries.
     48For additional details, see [ [#Degrande 2] ] and references within.
     49
     50
     51== Model Files ==
    4552 * [https://feynrules.irmp.ucl.ac.be/attachment/wiki/typeIseesaw/heavyN.fr heavyN.fr]:  Main model file. Relies on sm.fr (default FR model file) being declared elsewhere.
    4653
     
    8996
    9097=== List of analyses that have used the model file ===
    91 * Please email me to update this space.
     98* Please email to update this space.
    9299
    93100
     
    95102[=#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]
    96103
    97 [=#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]
     104[=#Degrande] [2] C. Degrande, O. Mattelear, R. Ruiz, J. Turner, arXiv:1602.00000 [hep-ph]
    98105
     106[=#Alva] [3] 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]
     107