Changes between Version 43 and Version 44 of HeavyN
 Timestamp:
 05/15/19 23:31:58 (14 months ago)
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HeavyN
v43 v44 9 9 Daniel Alva and Tao Han [ [#Alva 1] ]; 10 10 Celine Degrande, Olivier Mattelear, and Jessica Turner [ [#Degrande 2] ]; 11 and Silvia Pascoli and Cedric Weiland [ [#Pascoli 3] ].11 and Silvia Pascoli and Cedric Weiland [ [#Pascoli 3], [#Pascoli2 4] ]. 12 12 13 For instructions on using the HeavyN UFO libraries, see C. Degrande, et al, arXiv:1602.06957 [hepph]13 For detailed instructions and examples on using the HeavyN UFO libraries, see C. Degrande, et al, arXiv:1602.06957 and S. Pascoli, et al, arXiv:1812.08750 14 14 15 * For studies of heavy Majorana neutrinos, please consider citing [ [#Atre 5] ] for the Lagrangian and [ [#Alva 1], [#Degrande 2] ] for the Majorana FR/UFO files. 16 * For studies of heavy Dirac neutrinos, please consider citing [ [#Degrande 2], [#Pascoli2 4] ]. 15 17 16 18 17 19 == Model Description == 18 20 === Majorana === 19 This effective/simplified model extends the Standard Model (SM) field content by introducing three righthanded (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 4] ]21 This effective/simplified model extends the Standard Model (SM) field content by introducing three righthanded (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 5] ] 20 22 {{{ 21 23 #!latex … … 51 53 52 54 === Dirac === 53 The 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 55 The 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 [ [#Pascoli2 4] ] 54 56 {{{ 55 57 #!latex … … 67 69 68 70 == Model Files == 71 '''Note:''' The only difference between NLO and LO libraries is the presence of additional (effective) O(a_s) Feynman rules. By definition the NLO libraries can compute treelevel processes at LO precision. 72 69 73 70 74 ==== Majorana ==== … … 115 119 116 120 == Notes == 117 * For instructions on using the HeavyN UFO, see C. Degrande, et al arXiv:1602.06957 [hepph]121 * For instructions on using the HeavyN UFO, see C. Degrande, et al, arXiv:1602.06957 and S. Pascoli, et al, arXiv:1812.08750 118 122 119 123 * This model contains 15 free parameters: … … 152 156 153 157 == References == 154 * Please cite [ 4 ] for the model, [ 12 ] for the Majorana FR/UFO files, and [ 23 ] for the Dirac FR/UFO files. 158 * For studies of Majorana neutrinos, please consider citing [ 5 ] for the Lagrangian and [ 12 ] for the Majorana FR/UFO files. 159 * For studies of Dirac neutrinos, please consider citing [ 2, 4 ]. 155 160 156 161 [=#Alva] [1] D. Alva, T. Han, R. Ruiz, ''Heavy Majorana neutrinos from {{{$W\gamma$}}} ''fusion at hadron colliders,'' JHEP '''1502''', 072 (2015), arXiv:1411.7305 [hepph] … … 161 166 PLB '''786''', 106 (2018), arXiv:1805.09335 [hepph] 162 167 163 [=#Atre] [4] A. Atre, T. Han, S. Pascoli and B. Zhang, ''The Search for Heavy Majorana Neutrinos,'' JHEP '''0905''', 030 (2009), arXiv:0901.3589 [hepph] 168 [=#Pascoli2] [4] S. Pascoli, R. Ruiz and C. Weiland, ''Heavy Neutrinos with Dynamic Jet Vetoes: Multilepton Searches at {{{$\sqrt{s}=$}}}14, 27, and 100 TeV,'' arXiv:1812.08750 [hepph] 169 170 171 [=#Atre] [5] A. Atre, T. Han, S. Pascoli and B. Zhang, ''The Search for Heavy Majorana Neutrinos,'' JHEP '''0905''', 030 (2009), arXiv:0901.3589 [hepph]