Search for Higgs boson pair production in the bbττ final state in proton-proton collisions at (s)=8 TeV

Citations Over TimeTop 10% of 2017 papers

Abstract

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 $\ensuremath{\tau}$ lepton pair. This work is based on proton-proton collision data collected by the CMS experiment at $\sqrt{s}=8\text{ }\text{ }\mathrm{TeV}$, corresponding to an integrated luminosity of $18.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. 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 $\sqrt{s}=8\text{ }\text{ }\mathrm{TeV}$, 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 ${m}_{X}=300\text{ }\text{ }\mathrm{GeV}$ to ${m}_{X}=1000\text{ }\text{ }\mathrm{GeV}$. For resonant production of spin 0 (spin 2) particles, the observed 95% CL upper limit is 1.13 pb (1.09 pb) at ${m}_{X}=300\text{ }\text{ }\mathrm{GeV}$ and to 21 fb (18 fb) at ${m}_{X}=1000\text{ }\text{ }\mathrm{GeV}$. For nonresonant $HH$ production, a limit of 43 times the rate predicted by the standard model has been set.

Related Papers

• → Combined results of searches for the standard model Higgs boson in pp collisions at s=7 TeV(2012)667 cited
• → The probable fate of the Standard Model(2009)243 cited
• → Mass bounds in a model with a triplet Higgs(2003)45 cited
• → Probing the Higgs Sector at the SSC: the Standard Model and Beyond(1987)7 cited
• → Searches for h(125) properties beyond the Standard Model at the CMS\n experiment(2018)