Search for higgs boson pair production in the bbττ final state in proton-proton collisions at (s)=8 TeV
Results are presented from a search for production of Higgs boson pairs (HH) where one boson decays to a pair of b quarks and the other to a τ lepton pair. This work is based on proton-proton collision data collected by the CMS experiment at √ s = 8 TeV, corresponding to an integrated luminosity...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
American Physical Society
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/63076/1/63076_Search%20for%20Higgs%20boson%20pair%20production%20_article.pdf http://irep.iium.edu.my/63076/2/63076_Search%20for%20Higgs%20boson%20pair%20production%20_scopus.pdf http://irep.iium.edu.my/63076/ https://journals.aps.org/prd/pdf/10.1103/PhysRevD.96.072004 |
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| Summary: | Results are presented from a search for production of Higgs boson pairs (HH) where
one boson decays to a pair of b quarks and the other to a τ lepton pair. This work
is based on proton-proton collision data collected by the CMS experiment at √
s =
8 TeV, corresponding to an integrated luminosity of 18.3 fb−1
. Resonant and nonresonant
modes of HH production have been probed and no significant excess relative
to the background-only hypotheses has been found in either mode. Upper limits on
cross sections of the two HH production modes have been set. The results have been
combined with previously published searches at √
s = 8 TeV, in decay modes to two
photons and two b quarks, as well as to four b quarks, which also show no evidence
for a signal. Limits from the combination have been set on resonant HH production
by an unknown particle X in the mass range mX = 300 GeV to mX = 1000 GeV. For
resonant production of spin 0 (spin 2) particles, the observed 95% CL upper limit is
1.13 pb (1.09 pb) at mX = 300 GeV and to 21 fb (18 fb) at mX = 1000 GeV. For nonresonant
HH production, a limit of 43 times the rate predicted by the standard model
has been set. |
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