Probing Heavy Majorana Neutrinos and the Weinberg Operator through Vector Boson Fusion Processes in Proton-Proton Collisions at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math>

Benecke, Anna; Bruno, Giacomo; Bury, Florian; Caputo, Claudio; David, Pieter; Delaere, Christophe; Donertas, Izzeddin Suat; Giammanco, Andrea; Jaffel, Khawla; Jain, Sandhya; Lemaitre, Vincent; Mondal, Kuntal; Prisciandaro, Jessica; Taliercio, Angela; Tran, Tu Thong; Vischia, Pietro; Wertz, Sébastien; CMS; Bethani, Agni

doi:10.1103/PhysRevLett.131.011803

Probing Heavy Majorana Neutrinos and the Weinberg Operator through Vector Boson Fusion Processes in Proton-Proton Collisions at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math>

Benecke, Anna

;

Bruno, Giacomo

;

Bury, Florian

;

Caputo, Claudio

;

Bethani, Agni

;et.al.

(2023) Physical Review Letters — Vol. 131 (2023)

Files

2206.pdf

Open Access
Adobe PDF
1.11 MB

Download

Details

Authors

Benecke, AnnaUCLouvain
Author
Bruno, GiacomoUCLouvain
Author
Bury, FlorianUCLouvain
Author
Caputo, ClaudioUCLouvain
Author
David, PieterUCLouvain
Author
Delaere, ChristopheUCLouvain
Author
Donertas, Izzeddin SuatUCLouvain
Author
Giammanco, AndreaUCLouvain
Author
Jaffel, KhawlaUCLouvain
Author
Jain, SandhyaUCLouvain
Author
Jain, SandhyaUCLouvain
Author
Lemaitre, VincentUCLouvain
Author
Mondal, KuntalUCLouvain
Author
Prisciandaro, JessicaUCLouvain
Author
Taliercio, AngelaUCLouvain
Author
Tran, Tu ThongUCLouvain
Author
Vischia, PietroUCLouvain
Author
Wertz, SébastienUCLouvain
Author
Bethani, AgniUCLouvain
Author
et. al.

Abstract

The first search exploiting the vector boson fusion process to probe heavy Majorana neutrinos and the Weinberg operator at the LHC is presented. The search is performed in the same-sign dimuon final state using a proton-proton collision dataset marc:recorded at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math>, collected with the CMS detector and corresponding to a total integrated luminosity of <math display="inline"><mrow><mn>138</mn><mtext> </mtext><mtext> </mtext><msup><mrow><mi>fb</mi></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math>. The results are found to agree with the predictions of the standard model. For heavy Majorana neutrinos, constraints on the squared mixing element between the muon and the heavy neutrino are derived in the heavy neutrino mass range 50 GeV–25 TeV; for masses above 650 GeV these are the most stringent constraints from searches at the LHC to date. A first test of the Weinberg operator at colliders provides an observed upper limit at 95% confidence level on the effective <math display="inline"><mi>μ</mi><mi>μ</mi></math> Majorana neutrino mass of 10.8 GeV.

Affiliations

UCLouvainSST/IRMP - Institut de recherche en mathématique et physique

Citations

APA
Chicago
FWB

Benecke, A., Bruno, G., Bury, F., Caputo, C., David, P., Delaere, C., Donertas, I. S., Giammanco, A., Jaffel, K., Jain, S., Jain, S., Lemaitre, V., Mondal, K., Prisciandaro, J., Taliercio, A., Tran, T. T., Vischia, P., Wertz, S., CMS, et al. (2023). Probing Heavy Majorana Neutrinos and the Weinberg Operator through Vector Boson Fusion Processes in Proton-Proton Collisions at <math display=“inline”><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math>. Physical Review Letters, 131. https://doi.org/10.1103/PhysRevLett.131.011803 (Original work published 2023)