Changes between Version 2 and Version 3 of LeptoQuark
 Timestamp:
 02/19/19 16:02:42 (17 months ago)
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LeptoQuark
v2 v3 1 == = Vectorleptoquark model ===1 == Vectorleptoquark model == 2 2 3 3 === Authors === … … 5 5 * UZH, Zurich 6 6 * baker@physik.uzh.ch 7 * Javier FuentesMart in7 * Javier FuentesMartín 8 8 * UZH, Zurich 9 9 * fuentes@physik.uzh.ch 10 * Matthias König 11 * UZH, Zurich 12 * koenigma@physik.uzh.ch 13 * Gino Isidori 14 * UZH, Zurich 15 * isidori@physik.uzh.ch 16 17 === Description of the model === 18 19 This model is an extension of the SM, featuring a vector leptoquark (''U,,1,,~('''3''','''2'''),,2/3,,''), a colored vector (''G'~('''8''','''1'''),,0,,''), and a ''Z' '' (''Z'~('''1''','''1'''),,0,,'') as new heavy mediators. 20 21 The implementation of the model is based on ''"Highp,,T,, Signatures in VectorLeptoquark Models''" (arXiv:1901.10480). If you use our model file please cite this reference. 10 22 11 23 === Model Files === 12 24 25 [/attachment/wiki/LeptoQuark/vector_LQ.fr vector_LQ.fr]: This is the Feynrules model file for the vector leptoquark. [[BR]] 26 [/attachment/wiki/LeptoQuark/coloron.fr coloron.fr]: This is the Feynrules model file for the vector coloroctect.[[BR]] 27 [/attachment/wiki/LeptoQuark/Zprime.fr Zprime.fr]: This is the Feynrules model file for the "Z'". 28 13 29 === Model Restrictions === 30 31 [/attachment/wiki/LeptoQuark/Massless.rst Massless.rst]: This restriction file set all the masses and Yukawas to zero, except for the ones of the top quark. 14 32 15 33 === Instructions === 16 34 17 This implementation corresponds to the vector leptoquark model (''U,,1,,'') described in arXiv:1901.10480 35 The model is loaded by merging the model files {{{SM.fr}}}, {{{vector_LQ.fr}}}, {{{coloron.fr}}} and {{{Zprime.fr}}}. Alternatively, one exclude the model files {{{coloron.fr}}} or {{{Zprime.fr}}}, if the user is not interested in these mediators. 36 37 The implementation allows for the use of the Feynman gauge in the SM.The switch between the two gauge is achieved via {{{FeynmanGauge = True/False}}} (see StandardModel). 38 39 === Examples === 40 41 [/attachment/wiki/LeptoQuark/model_gen.nb model_gen.nb]: This is an example Mathematica® notebook that loads the Feynrules model files and calculates UFO model. 18 42 19 43 === Interfaces === … … 24 48 === Validation === 25 49 26 === UFO models === 50 An alternative Feynrules implementation for the vector leptoquark model (but with interactions to lefthanded SM fermions only) is available in https://lqnlo.hepforge.org. We have crosschecked our leptoquark implementation (with ''β,,33,, = 0'') against this one, finding a perfect agreement between the two. 51 52 === UFO model === 53 54 [/attachment/wiki/LeptoQuark/vector_LQ_UFO.tar.gz vector_LQ_UFO.tar.gz]: UFO model including the ''U,,1,,'', ''G' '' and ''Z' '' .