Les Houches 2011: Physics at TeV Colliders New Physics Working Group Report

Brooijmans, G.; Gripaios, B.; Moortgat, F.; Santiago, J.; Skands, P.; Vásquez, D. Albornoz; Allanach, B. C.; Alloul, A.; Arbey, A.; Azatov, A.; Baer, H.; Balázs, C.; Barr, A.; Basso, L.; Battaglia, M.; Bechtle, P.; Bélanger, G.; Belyaev, A.; Benslama, K.; Bergström, L.; Bharucha, A.; Boehm, C.; Bondarenko, M.; Bondu, O.; Boos, E.; Boudjema, F.; Bringmann, T.; Brown, M.; Bunichev, V.; Calvet, S.; Campanelli, M.; Carmona, A.; Cerdeño, D. G.; Chala, M.; Chivukula, R. S.; Chowdhury, D.; Christensen, N. D.; Cirelli, M.; Cox, S.; Cranmer, K.; Da Silva, J.; Delahaye, T.; De Roeck, A.; Djouadi, A.; Dobson, E.; Dolan, M.; Donato, F.; La Rochelle, G. Drieu; Duda, G.; Duhr, C.; Dumont, B.; Edsjö, J.; Ellis, J.; Evoli, C.; Falkowski, A.; Felcini, M.; Fuks, B.; Gabrielli, E.; Gaggero, D.; Gascon-Shotkin, S.; Ghosh, D. K.; Giammanco, A.; Godbole, R. M.; Gondolo, P.; Goto, T.; Grasso, D.; Gris, P.; Guadagnoli, D.; Gunion, J. F.; Haisch, U.; Hartgring, L.; Heinemeyer, S.; Hirsch, M.; Hewett, J.; Ismail, A.; Jeltema, T.; Kadastik, M.; Kakizaki, M.; Kannike, K.; Khalil, S.; Kneur, J-L.; Krämer, M.; Kraml, S.; Kreiss, S.; Lavalle, J.; Leane, R.; Lykken, J.; Maccione, L.; Mahmoudi, F.; Mangano, M.; Martin, S. P.; Maurin, D.; Moreau, G.; Moretti, S.; Moskalenko, I.; Moultaka, G.; Muhlleitner, M.; Niessen, I.; O'Leary, B.; Orlando, E.; Panci, P.; Polesello, G.; Porod, W.; Porter, T.; Profumo, S.; Prosper, H.; Pukhov, A.; Racioppi, A.; Raidal, M.; de Traubenberg, M. Rausch; Renaud, A.; Reuter, J.; Rizzo, T. G.; Robens, T.; Rodríguez-Marrero, A. Y.; Salati, P.; Savage, C.; Scott, P.; Sekmen, S.; Semenov, A.; Shan, C. -L.; Shepherd-Themistocleous, C.; Simmons, E. H.; Slavich, P.; Speckner, C.; Staub, F.; Strong, A.; Taillet, R.; Thomas, F. S.; Thomas, M. C.; Tomalin, I.; Tytgat, M.; Ughetto, M.; Valéry, L.; Walker, D. G. E.; Weiler, A.; West, S. M.; White, C. D.; Williams, A. J.; Wingerter, A.; Wymant, C.; Yu, J. -H.; Yuan, C. -P.; Zerwas, D.

doi:10.48550/arxiv.1203.1488

Cited by 21 publications

(37 citation statements)

References 427 publications

(732 reference statements)

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“…The coefficients of the eigenstates ν and N in this equation are CKM-type lepton mixings, which will appear again as matrices in the three generation case below. 8 Going back to obtaining a physical basis for the Yukawa terms, it is now possible, using the expressions for M D (Eqs. (3.50) and (3.51)) and for the charged lepton mass matrix (Eqs.…”

Section: Obtaining the Yukawa Terms In The Physical Basismentioning

confidence: 99%

“…(3.60) becomes positive. 8 We ignored, in this single generation example, the charged lepton inner mixings (the V l L,R matrix of Eq. (3.39)), which are part of the general discussion above (and should of course be included in the CKM-type mixings).…”

Section: Obtaining the Yukawa Terms In The Physical Basismentioning

confidence: 99%

“…[5] and [6]) as part of a thorough validation procedure performed according to the guidelines in Refs. [3,8] (see below).…”

mentioning

confidence: 99%

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Implementation of the manifest left–right symmetric model in FeynRules

Roitgrund

Eilam

Bar‐Shalom

2016

Computer Physics Communications

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We present an implementation of the manifest left-right symmetric model in FeynRules. The different aspects of the model are briefly described alongside the corresponding elements of the model file. The model file is validated and can be easily translated to matrix element generators such as MadGraph5_aMC@NLO, CalcHEP, Sherpa, etc. The implementation of the left-right symmetric model is a useful step for studying new physics signals with the data generated at the LHC.Keywords: left-right model; Feynman diagrams; CalcHEP model; MadGraph model; introductonThe main goal of the LHC is to search for signals of new physics beyond the Standard Model (SM), motivated by the shortcomings of the SM. In particular, the SM is incapable of explaining a number of fundamental issues, such as the hierarchy problem (resulting from the large difference between the weak force and the gravitational force), dark matter, the number of families in the quark and lepton sector. It is, therefore, widely believed that new physics beyond the SM will be discovered in the coming years. Among the possible attractive platforms for new physics are left-right symmetric models (LRSM) [1,2], on which we focus in this paper. In particular, we describe here a LRSM with no explicit CP violation in the Higgs potential, the manifest (or quasi-manifest) left-right symmetric model (MLRSM or QMLRSM, respectively), and its implementation in matrix element generators through FeynRules 2.0 [3].The LRSM address two specific difficulties of the SM: (i) Parity violation in the weak interactions, and (ii) non-zero neutrino masses implied by the experimental evidence of neutrino oscillation [4]. In particular, the left-right symmetry which underlies LRSM restores Parity symmetry at energies appreciably higher than the electroweak (EW) scale, resulting in the addition of three new heavy gauge bosons, W Early constructions of the LRSM comprise a Higgs sector with a Higgs bidoublet and two Higgs doublets [1]. In such a setup, the neutrinos are of Dirac type and no natural explanation for their small masses is provided. A later version, the above mentioned MLRSM, incorporates a Higgs bidoublet and two Higgs triplets, which leads to Majorana type neutrinos [2]. In particular, the MLRSM provides a natural setup for the smallness of neutrino masses, relating their mass scale to the large left-right symmetry breaking scale through the see-saw mechanism [5].This work includes the following:• An implementation of the MLRSM carrying an identical structure to the Lagrangian of [6] (i.e. identical parametrization and definitions of the Lagrangian terms). As such, it features the following elements in particular:1. The use of alternative empirical parameters (i.e. fermion mass matrices, CKM-type mixing matrices and Higgs VEVs) to indirectly set values to the Yukawa matrices, 2. Majorana type neutrinos (for a Dirac type see the Left-Right model based on [7]), 3. Directly controlling the QMLRSM diagonal matrices described in Refs. [5] and [6].• As a result, this is the fi...

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Section: Obtaining the Yukawa Terms In The Physical Basismentioning

confidence: 99%

Section: Obtaining the Yukawa Terms In The Physical Basismentioning

confidence: 99%

See 1 more Smart Citation

Implementation of the manifest left–right symmetric model in FeynRules

Roitgrund

Eilam

Bar‐Shalom

2016

Computer Physics Communications

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“…Since the exotic singlet Higgs and right-handed (s) neutrinos [41][42][43][44][45][46] releases additional parameter space from the LHC constraints, the model alleviates the little hierarchy problem of the MSSM [47]. In addition, the invariance under U(1) B−L gauge group imposes the R-parity conservation, which is assumed in the MSSM to avoid proton decay.…”

Section: Introductionmentioning

confidence: 99%

Electric dipole moments of neutron and heavy quarks in the B-LSSM

Yang

Feng

Cui

et al. 2020

J. High Energ. Phys.

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The searching for the electric dipole moments (EDMs) of neutron (d n ), b quark (d b ) and c quark (d c ) gives strict upper bounds on these quantities. And recently, new upper bounds on d b , d c are obtained by the strict limit on d n . The models of new physics (NP) with additional CP-violating (CPV) sources are constrained strictly by these EDMs. In this work, we focus on the CPV effects on these EDMs in the minimal supersymmetric extension (MSSM) of the SM with local B −L gauge symmetry (B-LSSM). The contributions from one-loop and some two-loop diagrams to the quark EDM are given in general form, which can also be used in the calculation of quark EDM in other models of NP. Considering the constrains from updated experimental data, the numerical results show that the two-loop corrections can make important contributions to these EDMs. Compared with the MSSM, the effects of new CPV phases and new parameters in the B-LSSM on these EDMs are also explored. PACS numbers:

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“…Following previous initiatives, notably within the Les Houches "Physics at TeV Colliders" workshop series, which resulted in a first set of recommendations in 2012 [1,2], our community established a dedicated "Forum on the (re-)interpretation of LHC results for BSM studies" in 2016 1 (hereafter referred to as the LHC Re-Interpretation Forum), with the purpose of deepening ongoing dialogue and collaboration between experimentalists and theorists working to facilitate and perform BSM reinterpretation studies. This document serves as a status report on that goal, and puts forth a set of further recommendations for improving the presentation of LHC results for reinterpretation.…”

mentioning

confidence: 99%

Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2

Abdallah,

AbdusSalam,

Ahmadov

et al. 2020

Preprint

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We report on the status of efforts to improve the reinterpretation of searches and measurements at the LHC in terms of models for new physics, in the context of the LHC Reinterpretation Forum. We detail current experimental offerings in direct searches for new particles, measurements, technical implementations and Open Data, and provide a set of recommendations for further improving the presentation of LHC results in order to better enable reinterpretation in the future. We also provide a brief description of existing software reinterpretation frameworks and recent global analyses of new physics that make use of the current data.

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Les Houches 2011: Physics at TeV Colliders New Physics Working Group Report

Cited by 21 publications

References 427 publications

Implementation of the manifest left–right symmetric model in FeynRules

Implementation of the manifest left–right symmetric model in FeynRules

Electric dipole moments of neutron and heavy quarks in the B-LSSM

Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2

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