Freya BlekmanAre there #Darkmatter particles produced together with #Higgsbosons? This #CMSPaper looks for that signature in the LHC data collected in 2017 and 2018. It is a #NullResult arxiv.org/abs/2601.11330
Are there #Darkmatter particles produced together with #Higgsbosons? This #CMSPaper looks for that signature in the LHC data collected in 2017 and 2018. It is a #NullResult https://arxiv.org/abs/2601.11330
Are there #Darkmatter particles produced together with #Higgsbosons? This #CMSPaper looks for that signature in the LHC data collected in 2017 and 2018. It is a #NullResult https://arxiv.org/abs/2601.11330
Are there #Darkmatter particles produced together with #Higgsbosons? This #CMSPaper looks for that signature in the LHC data collected in 2017 and 2018. It is a #NullResult https://arxiv.org/abs/2601.11330
Freya BlekmanWe have cuddly #higgsbosons at our open day here at @desy #sciencecityday @hh_bwfgb @ndw_hh @desycareer
#sciencecityhamburg #bahrenfeld
#sciencecityhamburg #bahrenfeld
Are there undiscovered heavy particles decaying to #Higgsbosons? #CMSPaper 1297 is an overview paper with all searches for Higgs boson resonances (as the Higgs boson can decay in many ways, there are also many signatures to examine). Such resonances would exist in scenarios with extra dimensions, more Higgs bosons, more W or Z bosons, and even if gravitons would exist and made at the LHC! We did not see any, so give constraints on what is still consistent with the data https://arxiv.org/abs/2403.16926
Searches for Higgs boson production through decays of heavy resonances
The discovery of the Higgs boson has led to new possible signatures for heavy resonance searches at the LHC. Since then, search channels including at least one Higgs boson plus another particle have formed an important part of the program of new physics searches. In this report, the status of these searches by the CMS Collaboration is reviewed. Searches are discussed for resonances decaying to two Higgs bosons, a Higgs and a vector boson, or a Higgs boson and another new resonance. All analyses use proton-proton collision data collected at $\sqrt{s}$ = 13 TeV in the years 2016-2018. A combination of the results of these searches is presented together with constraints on different beyond-the-standard model scenarios, including scenarios with extended Higgs sectors, heavy vector bosons and extra dimensions. Studies are shown for the first time by CMS on the validity of the narrow-width approximation in searches for the resonant production of a pair of Higgs bosons. The potential for a discovery at the High Luminosity LHC is also discussed.
CorradoThe #CMS experiment has presented its first search for #newphysics using data from #Run3 of the #LargeHadronCollider.
The new #study looks at the possibility of "#darkphoton" production in the decay of #Higgsbosons in the detector.
The #CMSexperiment has presented its first search for #newphysics using data from #Run3 of the #LargeHadronCollider. The new study looks at the possibility of "#darkphoton" production in the #decay of #Higgsbosons in the detector.
The CMS collaboration at CERN presents its latest search for 'dark photons'
The CMS experiment has presented its first search for new physics using data from Run 3 of the Large Hadron Collider. The new study looks at the possibility of "dark photon" production in the decay of Higgs bosons in the detector.
#CMSPaper 1232: The production of Higgs bosons occurs in many ways, one of which is known as "vector-boson fusion," when the Large Hadron Collider produces Higgs bosons through the collision of W/Z bosons. Detecting these #Higgsbosons is challenging as the rest of the collision is particles produced close to the beam. Although a hint of the Higgs boson has been detected, it is too early to celebrate at just below 3 sigma. 🫣 🥳
The paper is here: http://arxiv.org/abs/2308.01253 @CMSexperiment
Measurement of the Higgs boson production via vector boson fusion and its decay into bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A measurement of the Higgs boson (H) production via vector boson fusion (VBF) and its decay into a bottom quark-antiquark pair ($\mathrm{b\bar{b}}$) is presented using proton-proton collision data recorded by the CMS experiment at $\sqrt{s}$ = 13 TeV and corresponding to an integrated luminosity of 90.8 fb$^{-1}$. Treating the gluon-gluon fusion process as a background and constraining its rate to the value expected in the standard model (SM) within uncertainties, the signal strength of the VBF process, defined as the ratio of the observed signal rate to that predicted by the SM, is measured to be $μ^\text{qqH}_\mathrm{Hb\bar{b}}$ = 1.01$^{+0.55}_{-0.46}$. The VBF signal is observed with a significance of 2.4 standard deviations relative to the background prediction, while the expected significance is 2.7 standard deviations. Considering inclusive Higgs boson production and decay into bottom quarks, the signal strength is measured to be $μ^\text{incl.}_\mathrm{Hb\bar{b}}$ = 0.99$^{+0.48}_{-0.41}$, corresponding to an observed (expected) significance of 2.6 (2.9) standard deviations.
#CMSPaper 1232: The LHC also acts (rarely!) as a W/Z boson collider and then makes #HiggsBosons. This is a challenging signature with loads of background, including from other Higgs bosons. There is a promising 2.6σ bump at 125 (ish) GeV di-b-jet mass 🤩
Measurement of the Higgs boson production via vector boson fusion and its decay into bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A measurement of the Higgs boson (H) production via vector boson fusion (VBF) and its decay into a bottom quark-antiquark pair ($\mathrm{b\bar{b}}$) is presented using proton-proton collision data recorded by the CMS experiment at $\sqrt{s}$ = 13 TeV and corresponding to an integrated luminosity of 90.8 fb$^{-1}$. Treating the gluon-gluon fusion process as a background and constraining its rate to the value expected in the standard model (SM) within uncertainties, the signal strength of the VBF process, defined as the ratio of the observed signal rate to that predicted by the SM, is measured to be $μ^\text{qqH}_\mathrm{Hb\bar{b}}$ = 1.01$^{+0.55}_{-0.46}$. The VBF signal is observed with a significance of 2.4 standard deviations relative to the background prediction, while the expected significance is 2.7 standard deviations. Considering inclusive Higgs boson production and decay into bottom quarks, the signal strength is measured to be $μ^\text{incl.}_\mathrm{Hb\bar{b}}$ = 0.99$^{+0.48}_{-0.41}$, corresponding to an observed (expected) significance of 2.6 (2.9) standard deviations.