Search for Higgs Boson Pair Production in the Four <math display="inline"><mi>b</mi></math> Quark Final State 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;Bethani, Agni;Bruno, Giacomo;Bury, Florian;CMS;et.al.
(2022) Physical Review Letters — Vol. 129 (2022)

Files

jt.pdf
  • Open Access
  • Adobe PDF
  • 469.94 KB
Download

Details

Authors
  • Benecke, AnnaUCLouvain
    Author
  • Bethani, Agniorcid-logoUCLouvain
    Author
  • Bruno, GiacomoUCLouvain
    Author
  • Bury, FlorianUCLouvain
    Author
  • Caputo, ClaudioUCLouvain
    Author
  • David, PieterUCLouvain
    Author
  • Delaere, Christopheorcid-logoUCLouvain
    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
  • Teklishyn, MaksymUCLouvain
    Author
  • Tran, Tu ThongUCLouvain
    Author
  • Vischia, PietroUCLouvain
    Author
  • Wertz, SébastienUCLouvain
    Author
  • CMS
    Author
  • et. al.
Show more
Abstract
A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four <math display="inline"><mi>b</mi></math> quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, and corresponds to an 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>. No deviation from the background-only hypothesis is observed. A 95% confidence level upper limit on the Higgs boson pair production cross section is observed at 3.9 times the standard model prediction for an expected value of 7.8. Constraints are also set on the modifiers of the Higgs field self-coupling, <math display="inline"><mrow><msub><mrow><mi>κ</mi></mrow><mrow><mi>λ</mi></mrow></msub></mrow></math>, and of the coupling of two Higgs bosons to two vector bosons, <math display="inline"><mrow><msub><mrow><mi>κ</mi></mrow><mrow><mn>2</mn><mtext> </mtext><mi mathvariant="normal">V</mi></mrow></msub></mrow></math>. The observed (expected) allowed intervals at the 95% confidence level are <math display="inline"><mrow><mo>-</mo><mn>2.3</mn><mo>&lt;</mo><msub><mrow><mi>κ</mi></mrow><mrow><mi>λ</mi></mrow></msub><mo>&lt;</mo><mn>9.4</mn></mrow></math> (<math display="inline"><mrow><mo>-</mo><mn>5.0</mn><mo>&lt;</mo><msub><mrow><mi>κ</mi></mrow><mrow><mi>λ</mi></mrow></msub><mo>&lt;</mo><mn>12.0</mn></mrow></math>) and <math display="inline"><mrow><mo>-</mo><mn>0.1</mn><mo>&lt;</mo><msub><mrow><mi>κ</mi></mrow><mrow><mn>2</mn><mtext> </mtext><mi mathvariant="normal">V</mi></mrow></msub><mo>&lt;</mo><mn>2.2</mn></mrow></math> (<math display="inline"><mrow><mo>-</mo><mn>0.4</mn><mo>&lt;</mo><msub><mrow><mi>κ</mi></mrow><mrow><mn>2</mn><mtext> </mtext><mi mathvariant="normal">V</mi></mrow></msub><mo>&lt;</mo><mn>2.5</mn></mrow></math>). These are the most stringent observed constraints to date on the <math display="inline"><mi>H</mi><mi>H</mi></math> production cross section and on the <math display="inline"><mrow><msub><mrow><mi>κ</mi></mrow><mrow><mn>2</mn><mtext> </mtext><mi mathvariant="normal">V</mi><mtext> </mtext></mrow></msub></mrow></math> coupling.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Benecke, A., Bethani, 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., Teklishyn, M., Tran, T. T., Vischia, P., et al. (2022). Search for Higgs Boson Pair Production in the Four <math display=“inline”><mi>b</mi></math> Quark Final State 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, 129. https://doi.org/10.1103/PhysRevLett.129.081802 (Original work published 2022)