Anomalous quartic electroweak gauge-boson interactions
Authors:
- O.J.P. Eboli (eboli AT fma.if.usp.br)
- M.C. Gonzalez-Garcia (concha AT max2.physics.sunysb.edu)
Description of the models:
We concentrate on anomalous quartic interaction among the electroweak gauge bosons that do not have a triple vertex associated to it. We describe these interactions using dimension eight effective operators assuming that the recently observed Higgs boson belongs to a SU(2)L doublet; see the file quartic.pdf for further details. This model is an extension of the Standard Model (SM) implemented at http://feynrules.irmp.ucl.ac.be/wiki/StandardModel; for further details see this link.
The model labeled SM_LS0_LS1 contains the standard model interactions supplemented by the dimension eight operators LS,0 and LS,1 defined in the file quartic.pdf. These dimension eight effective operators modify the vertices WWWW, WWZZ, and WWZZ that can be a simple re-scaling of the SM quartic interaction for a suitable choice of couplings.
The model labeled SM_LT012 contains the standard model interactions supplemented by the dimension eight operators LT,0 , LT,1 and LT,2 defined in the file quartic.pdf. These dimension eight effective operators give rise to anomalous WWWW, WWZZ, WWAZ, WWAA, AAAA, AAAZ, AAZZ, AZZZ, and ZZZZ vertices.
The model labeled SM_LM0123 contains the standard model interactions supplemented by the dimension eight operators LM,0 , LM,1 , LM,2 and LM,3 defined in the file quartic.pdf. These dimension eight effective operators give rise to anomalous WWWW, WWZZ, WWAZ, WWAA, AAZZ, AZZZ, and ZZZZ vertices.
The model labeled SM_LT8_LT9 contains the standard model interactions supplemented by the dimension eight operators LT,8 and LT,9 defined in the file quartic.pdf. These dimension eight effective operators give rise to anomalous AAAA, AAAZ, AAZZ, AZZZ, and ZZZZ vertices.
References
- Strongly interacting vector bosons at the CERN LHC: Quartic anomalous couplings , A.S. Belyaev et al, Phys.Rev. D59 (1999) 015022 (hep-ph/9805229)
- p p ---> j j e+- mu+- nu nu and j j e+- mu-+ nu nu at order ... for the study of the quartic electroweak gauge boson vertex at CERN LHC, O.J.P. Eboli, M.C. Gonzalez-Garcia , and J.K. Mizukoshi, Phys.Rev. D74 (2006) 073005 (hep-ph/0606118 the dimension eight operators are from this reference)
- Anomalous quartic gauge boson couplings at hadron colliders, Oscar J.P. Eboli, M.C. Gonzalez-Garcia, S.M. Lietti, and S.F. Novaes., Phys.Rev. D63 (2001) 075008 hep-ph/0009262)
- Bosonic quartic couplings at CERN LHC, O.J.P. Eboli, M.C. Gonzalez-Garcia, and S.M. Lietti, Phys.Rev. D69 (2004) 095005 (hep-ph/0310141)
- "Classifying the bosonic quartic couplings ", O.J.P. Eboli and M.C. Gonzalez-Garcia, Phys.Rev. D93 (2016) 093013 (arXiv:1604.03555)
Instructions
The model files include the quartic and SM vertices in the unitary gauge. To generate models with any of the other dimension eight operators use the notebooks quartic_ls01.nb or quartic_lt89.nb as examples and include the additional interactions that are already defined in the model file quartic.fr. The anomalous couplings are set to 1 GeV-4 by default, thus they should be conveniently chosen before the event generation.
2017 version: the user must specify the number of anomalous vertices in the scattering amplitude generated by MadGraph. For one vertex use NP=1.
June 2019 version: contains the operators LS0,1,2 , LM0,1,7 and LT0,1,2 that can be used simultaneously. Each anomalous interactions has an independent InteractionOrder that is called S0, S1, S2, M0, etc. This version assumes 5 massless quarks.
April 2020 version: same as the previous one but fixing a bug on LM5 (previously a hermitian conjugate was missing)
August 2021 version: includes two new operators (T3 and T4) [see Phys.Rev.D 101 (2020) 11, 113003 • e-Print: 2004.05174]. The UFO files were obtained using on the Cabibbo angle (quartic21.tgz) as well as the full CKM matrix without the CP violating phase (quarticCKM.tgz).
Attachments (29)
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quartic_ls01.nb
(10.1 KB
) - added by 12 years ago.
Notebook used to generate the SM, LS0, and LS1 interactions.
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SM_LS0_LS1_CH.tgz
(4.8 KB
) - added by 12 years ago.
CalcHep format file containing the SM, LS0 and LS1 interactions.
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quartic_lt89.nb
(10.8 KB
) - added by 12 years ago.
Notebook used to generate the SM, LT8, and LT9 interactions.
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SM_LT8_LT9_CH.tgz
(7.4 KB
) - added by 12 years ago.
CalcHep format file containing the SM, LT8 and LT9 interactions.
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Massless.rst
(723 bytes
) - added by 12 years ago.
model restriction: Only the top, bottom and charm quarks, and the tau lepton are massive.
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Cabibbo.rst
(818 bytes
) - added by 12 years ago.
Model restriction: 3rd generation mixing is off.
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quartic_lt89.2.nb
(10.9 KB
) - added by 12 years ago.
Notebook used to generate the SM, LT8, and LT9 interactions.
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quartic.pdf
(53.6 KB
) - added by 12 years ago.
This file contains the definitions of the dimension eight operators
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quartic.fr
(36.1 KB
) - added by 11 years ago.
This is the main file. It contains the definitions for the SM and all quartic interactions.
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SM_LS0_LS1_UFO.tgz
(11.8 KB
) - added by 11 years ago.
UFO format file for the SM, LS0 and LS1 interactions. (e.g. for MadGraph5)
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SM_LS0_LS1_FA.tgz
(5.2 KB
) - added by 11 years ago.
FeynArts? format file containing the SM, LS0 and LS1 interactions.
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SM_LT8_LT9_UFO.tgz
(10.4 KB
) - added by 11 years ago.
UFO format file for the SM, LT8 and LT9 interactions. (e.g. for MadGraph5)
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SM_LT8_LT9_FA.tgz
(4.9 KB
) - added by 11 years ago.
FeynArts? format file containing the SM, LT8 and LT9 interactions.
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SM_LT012_UFO.tgz
(76.3 KB
) - added by 11 years ago.
UFO format file for the SM, LT0, LT1, and LT2 interactions. (e.g. for MadGraph5)
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SM_LM0123_UFO.tgz
(18.4 KB
) - added by 11 years ago.
UFO format file for the SM, LM0, LM1, LM2, and LM3 interactions. (e.g. for MadGraph5)
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SM_LT5_UFO.tgz
(45.7 KB
) - added by 7 years ago.
standard model plus LT5 effective operator
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SM_LT6_UFO.tgz
(51.6 KB
) - added by 7 years ago.
standard model plus LT6 effective operator
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SM_LT7_UFO.tgz
(76.3 KB
) - added by 7 years ago.
standard model plus LT7 effective operator
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SM_LS012_UFO.tgz
(45.9 KB
) - added by 7 years ago.
standard model plus LS0,1,2 effective operators
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SM_LM4.tgz
(50.2 KB
) - added by 7 years ago.
standard model plus LM4 effective operator
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SM_LM5.tgz
(55.3 KB
) - added by 7 years ago.
standard model plus LM5 effective operator
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SM_LM7.tgz
(73.0 KB
) - added by 7 years ago.
standard model plus LM7 effective operator
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all.tgz
(325.0 KB
) - added by 7 years ago.
All effective operators within the 5 flavor scheme
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SM_LS012_LM017_LT012_Ind5_UFO_June19.tar.gz
(101.2 KB
) - added by 5 years ago.
June 2019 version
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April2020.tgz
(117.1 KB
) - added by 5 years ago.
Latest version of the UFO files
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quartic21.tgz
(128.9 KB
) - added by 3 years ago.
August 2021 version: two new quartic operators added (T3 and T4) previously not considered. Only the Cabibbo angle is taken into account.
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quarticCKM21.tgz
(129.2 KB
) - added by 3 years ago.
August 2021: This version includes two new operators (T3 and T4) and uses the full CKM matrix
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quartic21v2.tgz
(128.7 KB
) - added by 3 years ago.
August 2021 version: two new quartic operators added (T3 and T4) previously not considered. Only the Cabibbo angle is taken into account. This version corrects a bug in LM5
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quarticCKM21v2.tgz
(129.1 KB
) - added by 3 years ago.
This version includes two new operators (T3 and T4) and uses the full CKM matrix. This version corrects a bug in LM5.
Download all attachments as: .zip