Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7245
Title: Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair
Authors: CMS Collaboration
Karapınar, Güler
Karapınar, Güler
Keywords: Elementary particles
High energy physics
Bottom quarks
Proton–proton collisions
Issue Date: Feb-2018
Publisher: American Physical Society
Source: Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair. Physical Review Letters, 120(7). doi:10.1103/PhysRevLett.120.071802
Abstract: An inclusive search for the standard model Higgs boson (H) produced with large transverse momentum (pT) and decaying to a bottom quark-antiquark pair (bb) is performed using a data set of pp collisions at s=13 TeV collected with the CMS experiment at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb-1. A highly Lorentz-boosted Higgs boson decaying to bb is reconstructed as a single, large radius jet, and it is identified using jet substructure and dedicated b tagging techniques. The method is validated with Z→bb decays. The Z→bb process is observed for the first time in the single-jet topology with a local significance of 5.1 standard deviations (5.8 expected). For a Higgs boson mass of 125 GeV, an excess of events above the expected background is observed (expected) with a local significance of 1.5 (0.7) standard deviations. The measured cross section times branching fraction for production via gluon fusion of H→bb with reconstructed pT>450 GeV and in the pseudorapidity range -2.5<η<2.5 is 74±48(stat)-10+17(syst) fb, which is consistent within uncertainties with the standard model prediction. © 2018 CERN.
URI: https://doi.org/10.1103/PhysRevLett.120.071802
https://hdl.handle.net/11147/7245
ISSN: 0031-9007
0031-9007
1079-7114
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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