The one-loop tadpole in the geoSMEFT

Corbett, Tyler

doi:10.21468/scipostphys.11.5.097

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…For the SM process calculation we use the input parameters used in previous studies of dimension-eight effects in the SMEFT [24,29]:…”

Section: The Standard Modelmentioning

confidence: 99%

“…The SMEFT at dimension-six has been a major area of investigation, particularly since the discovery of the Higgs boson. Recently much interest has been generated around how dimension-eight operators impact studies of the SMEFT [13][14][15][16][17][18][19] and how they change our understanding of truncation error in the SMEFT [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Higgs decays to two leptons and a photon beyond leading order in the SMEFT

Corbett¹,

Rasmussen²

2022

SciPost Phys.

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We present the three-body decay of the Higgs boson into two leptons and a photon to dimension-eight in the Standard Model Effective Field Theory (SMEFT). In order to obtain this result we interfere the full one-loop Standard Model result with the tree-level result in the SMEFT. This is the first calculation of the partial width of the Higgs boson into two leptons and a photon in the SMEFT to incorporate the full one-loop dependence for the Standard Model as well as the full tree level dimension-eight dependence in the SMEFT. We find that this channel can aid in distinguishing strongly interacting and weakly interacting UV completions of the SMEFT under standard assumptions. We also find that this channel presents the opportunity to distinguish different operator Classes within the SMEFT, potentially including contact H\bar\ell\ell\gammaHℓ‾ℓγ operators which are first generated only at dimension-eight in the SMEFT.

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“…For the SM process calculation we use the input parameters used in previous studies of dimension-eight effects in the SMEFT [24,29]:…”

Section: The Standard Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Higgs decays to two leptons and a photon beyond leading order in the SMEFT

Corbett¹,

Rasmussen²

2022

SciPost Phys.

Self Cite

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“…W ψL ψ L ) couplings are proportional to the CKM matrix elements above. In the columns labeled 'MFV' further suppression is assumed under the assumption that the only source of U(3) 5 breaking is coming from the SM Yukawa couplings. This could be loosened by considering higher dimensional operators that shift the Yukawas [35], but again this requires a full analysis beyond leading order in the SMEFT of the determination of CKM matrix elements.…”

Section: F Analysis Of Up-strange Contribution To Assess Impact Of Ck...mentioning

confidence: 99%

“…More recently a great deal of interest has been generated in studying the next order in the SMEFT expansion, 1/Λ 4 [4][5][6][7][8][9][10][11][12][13][14][15][16]. Motivations for the study of these NLO terms in the SMEFT expansion include:…”

Section: Introductionmentioning

confidence: 99%

Higgs associated production with a vector decaying to two fermions in the geoSMEFT

Corbett,

Martin

2024

SciPost Phys.

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We present the inclusive calculations of a Higgs boson produced in association with massive vector bosons in the Standard Model Effective Field Theory (SMEFT) to order 1/\Lambda^41/Λ4 for the 13 TeV LHC. The calculations include the decay of the vector boson into massless constituents and are done using the geometric formulation of the SMEFT supplemented by the relevant dimension eight operators not included in the geoSMEFT. We include some discussion of distributions to motivate how detailed collider and experimental searches for SMEFT signals could be improved.

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“…The SMEFT at dimension-six has been a major area of investigation, particularly since the discovery of the Higgs boson. Recently much interest has been generated around how dimension-eight operators impact studies of the SMEFT [11][12][13][14][15][16] and how they change our understanding of truncation error in the SMEFT [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Higgs decays to two leptons and a photon beyond leading order in the SMEFT

Corbett¹,

Rasmussen²

2021

Preprint

View full text Add to dashboard Cite

We present the three-body decay of the Higgs boson into two leptons and a photon to dimension-eight in the Standard Model Effective Field Theory (SMEFT). In order to obtain this result we interfere the full one-loop Standard Model result with the tree-level result in the SMEFT. This is the first calculation of the partial width of the Higgs boson into two leptons and a photon in the SMEFT to incorporate the full one-loop dependence for the Standard Model as well as the full tree level dimension-eight dependence in the SMEFT. We find that this channel can aid in distinguishing strongly interacting and weakly interacting UV completions of the SMEFT under standard assumptions. We also find that this channel presents the opportunity to distinguish different operator Classes within the SMEFT, potentially including contact H ¯ γ operators which are first generated only at dimension-eight in the SMEFT.

show abstract

The one-loop tadpole in the geoSMEFT

Cited by 7 publications

References 15 publications

Higgs decays to two leptons and a photon beyond leading order in the SMEFT

Higgs decays to two leptons and a photon beyond leading order in the SMEFT

Higgs associated production with a vector decaying to two fermions in the geoSMEFT

Higgs decays to two leptons and a photon beyond leading order in the SMEFT

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