13 documents found, page 1 of 2
Reinterpretation of LHC results for new physics: Status and recommendations aft...
Abdallah, Waleed; AbdusSalam, Shehu; Ahmadov, Azar; Ahriche, Amine; Alguero, Gaël; Allanach, Benjamin C.; Araz, Jack Y.; Arbey, Alexandre; Arina, ChiaraMade available in DSpace on 2021-06-25T10:33:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; We report on the status of efforts to improve the reinterpretation of searches and measurements at the LHC in terms of models for new physics, in the context of the LHC Reinterpretation Forum. We detail current experimental offerings in direct searches for new particles, measurements, technical implemen...
Search for supersymmetry in events with a $\tau$ lepton pair and missing transv...
CMS collaboration (2297 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroA search for the electroweak production of supersymmetric particles in proton-proton collisions at a center-of-mass energy of 13 TeV is presented in final states with a τ lepton pair. Both hadronic and leptonic decay modes are considered for the τ leptons. Scenarios involving the direct pair production of τ sleptons, or their indirect production via the decays of charginos and neutralinos, are investigated. The...
Search for dark matter produced in association with a Higgs boson decaying to $...
CMS collaboration (2304 authors); Nayak, Aruna; Bargassa, Pedrame; Da Cruz E Silva, Crist�v�o Beir�o; Di Francesco, Agostino; Faccioli, PietroA search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of τ leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb$^{−1}$. No significant excess over...
Search for the decay of a Higgs boson in the $\ell\ell\gamma$ channel in proton...
CMS collaboration (2301 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroA search for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon (H $\to$ Z$\gamma\to\ell\ell\gamma$, $\ell =$ e or $\mu$), or to two photons, one of which has an internal conversion into a muon pair (H $\to\gamma^{*}\gamma\to\mu\mu\gamma$) were considered. The analysis is performed using a data set recorded by the CMS experiment at th...
Search for pair-produced resonances each decaying into at least four quarks in ...
CMS collaboration (2304 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroThis letter presents the results of a search for pair-produced particles of masses above 100 GeV that each decay into at least four quarks. Using data collected by the CMS experiment at the LHC in 2015-2016, corresponding to an integrated luminosity of 38.2 fb$^{-1}$, reconstructed particles are clustered into two large jets of similar mass, each consistent with four-parton substructure. No statistically signif...
Search for narrow and broad dijet resonances in proton-proton collisions at $ \...
CMS collaboration (2303 authors); Nayak, Aruna; Bargassa, Pedrame; Da Cruz E Silva, Cristóvao Beirao; Di Francesco, Agostino; Faccioli, PietroSearches for resonances decaying into pairs of jets are performed using proton-proton collision data collected at $\sqrt{s} =$ 13 TeV corresponding to an integrated luminosity of up to 36 fb$^{-1}$. A low-mass search, for resonances with masses between 0.6 and 1.6 TeV, is performed based on events with dijets reconstructed at the trigger level from calorimeter information. A high-mass search, for resonances wit...
Observation of the Z$\to\psi\ell^+\ell^-$ decay in pp collisions at $\sqrt{s}=$...
CMS collaboration (2298 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroThis Letter presents the observation of the rare Z boson decay Z $\to\psi\ell^+\ell^-$. Here, $\psi$ represents contributions from direct J/$\psi$ and $\psi$(2S) $\to$ J/$\psi X$, $\ell^+\ell^-$ is a pair of electrons or muons, and the J/$\psi$ meson is detected via its decay to $\mu^+\mu^-$. The sample of proton-proton collision data, collected by the CMS experiment at the LHC at a center-of-mass energy of 13 ...
Search for heavy resonances decaying into a vector boson and a Higgs boson in f...
CMS collaboration (2302 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroA search for heavy resonances, decaying into the standard model vector bosons and the standard model Higgs boson, is presented. The final states considered contain a b quark-antiquark pair from the decay of the Higgs boson, along with electrons and muons and missing transverse momentum, due to undetected neutrinos, from the decay of the vector bosons. The mass spectra are used to search for a localized excess c...
Search for the Higgs boson decaying to two muons in proton-proton collisions at...
CMS collaboration (2288 authors); Nayak, Aruna; Bargassa, Pedrame; Beirão da Cruz e Silva, Cristóvão; Di Francesco, Agostino; Faccioli, PietroA search for the Higgs boson decaying to two oppositely charged muons is presented using data recorded by the CMS experiment at the CERN LHC in 2016 at a center-of-mass energy $\sqrt{s} =$ 13 TeV, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. Data are found to be compatible with the predicted background. For a Higgs boson with a mass of 125.09 GeV, the 95% confidence level observed (background-on...
Search for resonant pair production of Higgs bosons decaying to bottom quark-an...
CMS collaboration (2304 authors); Nayak, Aruna; Bargassa, Pedrame; Da Cruz E Silva, Cristóvao Beirao; Di Francesco, Agostino; Faccioli, PietroA search for a narrow-width resonance decaying into two Higgs bosons, each decaying into a bottom quark-antiquark pair, is presented. The search is performed using proton-proton collision data corresponding to an integrated luminosity of 35.9 fb$^{-1}$ at $\sqrt{s}=$ 13 TeV recorded by the CMS detector at the LHC. No evidence for such a signal is observed. Upper limits are set on the product of the production c...