Published July 6, 2023 | Version Published
Journal Article Open

Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at √s = 13 TeV

Creators

  • 1. ROR icon California Institute of Technology

Abstract

A search is reported for pairs of light Higgs bosons (H₁) produced in supersymmetric cascade decays in final states with small missing transverse momentum. A data set of LHC pp collisions collected with the CMS detector at s = 13TeV and corresponding to an integrated luminosity of 138fb⁻¹ is used. The search targets events where both H₁ bosons decay into bb̅ pairs that are reconstructed as large-radius jets using substructure techniques. No evidence is found for an excess of events beyond the background expectations of the standard model (SM). Results from the search are interpreted in the next-to-minimal supersymmetric extension of the SM, where a "singlino" of small mass leads to squark and gluino cascade decays that can predominantly end in a highly Lorentz-boosted singlet-like H₁ and a singlino-like neutralino of small transverse momentum. Upper limits are set on the product of the squark or gluino pair production cross section and the square of the bb̅ branching fraction of the H₁ in a benchmark model containing almost mass-degenerate gluinos and light-flavour squarks. Under the assumption of an SM-like H₁) → bb̅ branching fraction, H₁ bosons with masses in the range 40–120 GeV arising from the decays of squarks or gluinos with a mass of 1200–2500 GeV are excluded at 95% confidence level.

Data Availability

This manuscript has no associated data or the data will not be deposited. [Authors' comment: Release and preservation of data used by the CMS Collaboration as the basis for publications is guided by the CMS policy as stated in https://cms-docdb.cern.ch/cgi-bin/PublicDocDB/RetrieveFile?docid=6032 &filename=CMSDataPolicyV1.2.pdf &version=2CMSdata preservation, re-use and open access policy.]

Copyright and License

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.

Files

s10052-023-11581-0.pdf

Files (5.8 MB)

Name Size
md5:5327b041301f6014572e4bbe628b6f8b
5.8 MB Preview Download

Additional details

Related works

Describes
Journal Article: 10.1140/epjc/s10052-023-11581-0 (DOI)
Is variant form of
Discussion Paper: 10.48550/arXiv.2204.13532 (DOI)

Dates

Available
2023-07-06
Published
Accepted
2022-07-01
Accepted paper