Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks
Abstract
© 2016, CERN for the benefit of the CMS collaboration. A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at s=8TeV. The data correspond to an integrated luminosity of 19.7fb-1. The search considers H H resonances with masses between 1 and 3TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t t ¯ events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 % confidence level for the product of the production cross section and branching fraction σ(gg→X)B(X→HH→bb¯bb¯) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0TeV, significantly extending previous searches. For a warped extra dimension theory with a mass scale Λ Rmore »
- Authors:
-
- Yerevan Physics Inst. (YerPhI) (Armenia). et al.
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Org.:
- CMS Collaboration
- OSTI Identifier:
- 1244504
- Alternate Identifier(s):
- OSTI ID: 1411636
- Report Number(s):
- FERMILAB-PUB-16-053-CMS; CMS-EXO-12-053; CERN-EP-2016-041; arXiv:1602.08762
Journal ID: ISSN 1434-6044; 1424833
- Grant/Contract Number:
- AC02-07CH11359; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Volume: 76; Journal Issue: 7; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Khachatryan, Vardan. Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks. United States: N. p., 2016.
Web. doi:10.1140/epjc/s10052-016-4206-6.
Khachatryan, Vardan. Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks. United States. https://doi.org/10.1140/epjc/s10052-016-4206-6
Khachatryan, Vardan. Mon .
"Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks". United States. https://doi.org/10.1140/epjc/s10052-016-4206-6. https://www.osti.gov/servlets/purl/1244504.
@article{osti_1244504,
title = {Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks},
author = {Khachatryan, Vardan},
abstractNote = {© 2016, CERN for the benefit of the CMS collaboration. A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at s=8TeV. The data correspond to an integrated luminosity of 19.7fb-1. The search considers H H resonances with masses between 1 and 3TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t t ¯ events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 % confidence level for the product of the production cross section and branching fraction σ(gg→X)B(X→HH→bb¯bb¯) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0TeV, significantly extending previous searches. For a warped extra dimension theory with a mass scale Λ R = 1 TeV, the data exclude radion scalar masses between 1.15 and 1.55TeV.},
doi = {10.1140/epjc/s10052-016-4206-6},
journal = {European Physical Journal. C, Particles and Fields},
number = 7,
volume = 76,
place = {United States},
year = {Mon Jul 04 00:00:00 EDT 2016},
month = {Mon Jul 04 00:00:00 EDT 2016}
}
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Cited by: 32 works
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Figures / Tables:
Fig. 1: Simulated m$^{P}_{j}$ spectrum for spin-0 radion signals,multijet and t$\bar{t}$ events, and the spectrummeasured in data. Each event contributes twice to the distribution, once per jet. The multijet contribution is rescaled to match the event yield in data, while the signal and t$\bar{t}$ spectra are rescaled by the largemore »
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