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Search for a heavy resonance decaying into a top quark and a W boson in the lepton+jets final state at $$\sqrt{s}$$ = 13 TeV
A bstract A search for a heavy resonance decaying into a top quark and a W boson in proton-proton collisions at $$\sqrt{s}$$ s = 13 TeV is presented. The data analyzed were recorded with the CMS detector at the LHC and correspond to an integrated luminosity of 138 fb − 1 . The top quark is reconstructed as a single jet and the W boson, from its decay into an electron or muon and the corresponding neutrino. A top quark tagging technique based on jet clustering with a variable distance parameter and simultaneous jet grooming is used to identify jets from the collimated top quark decay. The results are interpreted in the context of two benchmark models, where the heavy resonance is either an excited bottom quark b ∗ or a vector-like quark B. A statistical combination with an earlier search by the CMS Collaboration in the all-hadronic final state is performed to place upper cross section limits on these two models. The new analysis extends the lower range of resonance mass probed from 1.4 down to 0.7 TeV. For left-handed, right-handed, and vector-like couplings, b ∗ masses up to 3.0, 3.0, and 3.2 TeV are excluded at more »
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Award ID(s):
Publication Date:
NSF-PAR ID:
10328326
Journal Name:
Journal of High Energy Physics
Volume:
2022
Issue:
4
ISSN:
1029-8479
2. A bstract A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of $$\sqrt{s}$$ s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb − 1 . No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fractionmore »
3. Abstract The rate for Higgs ( $${\mathrm{H}}$$ H ) bosons production in association with either one ( $${\mathrm{t}} {\mathrm{H}}$$ t H ) or two ( $${\mathrm{t}} {{\overline{{{\mathrm{t}}}}}} {\mathrm{H}}$$ t t ¯ H ) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of $$13\,\text {TeV}$$ 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137 $$\,\text {fb}^{-1}$$ fb - 1 . The analysis is aimed at events that contain $${\mathrm{H}} \rightarrowmore » 4. A bstract A search for the exotic decay of the Higgs boson ( H ) into a b$$ \overline{b} $$b ¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb − 1 of pp collisions at$$ \sqrt{s} $$s = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H →$$ {\overset{\sim }{\chi}}_2^0{\overset{\sim }{\chi}}_1^0 $$χ ~ 2 0 χ ~ 1 0 , with$$ {\overset{\sim }{\chi}}_2^0 $$χ ~ 2 0 →$$ a{\overset{\sim }{\chi}}_1^0more »