46 documents found, page 1 of 5
Search for flavor-changing neutral current interactions of the top quark and th...
Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Fruhwirth, R.Made available in DSpace on 2022-04-28T18:08:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-02-21; BMBWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); FAPERGS (Brazil); Fundação de Ampa...
Observation of the Z →ψ + - Decay in pp Collisions at s =13 TeV
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.Made available in DSpace on 2022-04-30T12:26:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-10-04; This Letter presents the observation of the rare Z boson decay Z→ψ + -. Here, ψ represents contributions from direct J/ψ and ψ(2S)→J/ψX, + - is a pair of electrons or muons, and the J/ψ meson is detected via its decay to μ+μ-. The sample of proton-proton collision data, collected by the CMS experiment a...
Search for Pair-Produced Resonances Each Decaying into at Least Four Quarks in ...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.Made available in DSpace on 2022-04-30T12:41:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-10-05; This 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 in...
Measurement of the top quark Yukawa coupling from t t kinematic distributions i...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.Made available in DSpace on 2022-04-30T20:40:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-17; Results are presented for an extraction of the top quark Yukawa coupling from top quark-antiquark (tt) kinematic distributions in the lepton plus jets final state in proton-proton collisions, based on data collected by the CMS experiment at the LHC at s=13 TeV, corresponding to an integrated luminosity ...
Measurements of t t ¯ H Production and the CP Structure of the Yukawa Interacti...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Frühwirth, R.Made available in DSpace on 2022-04-30T23:49:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-08-07; The first observation of the tt¯H process in a single Higgs boson decay channel with the full reconstruction of the final state (H→γγ) is presented, with a significance of 6.6 standard deviations (σ). The CP structure of Higgs boson couplings to fermions is measured, resulting in an exclusion of the pur...
Observation of the Production of Three Massive Gauge Bosons at s =13 TeV
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.Made available in DSpace on 2022-05-01T00:29:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-10-05; The first observation is reported of the combined production of three massive gauge bosons (VVV with V=W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis is based on a data sample recorded by the CMS experiment at the CERN LHC corresponding to an integrated luminosity o...
Observation of the Bs0 →x (3872)φ Decay
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.Made available in DSpace on 2022-05-01T00:43:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-10-07; Using a data sample of proton-proton collisions at s=13 TeV, corresponding to an integrated luminosity of 140 fb-1 collected by the CMS experiment in 2016-2018, the Bs0→X(3872)φ decay is observed. Decays into J/ψ+π- and K+K- are used to reconstruct, respectively, the X(3872) and φ. The ratio of the prod...
Search for resonant pair production of Higgs bosons in the bbZZ channel in prot...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.Made available in DSpace on 2022-05-01T01:11:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-08-01; A search for the production of a narrow-width resonance decaying into a pair of Higgs bosons decaying into the bbZZ channel is presented. The analysis is based on data collected with the CMS detector during 2016, in proton-proton collisions at the LHC, corresponding to an integrated luminosity of 35.9 f...
W+W- boson pair production in proton-proton collisions at s =13 TeV
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.Made available in DSpace on 2022-05-01T01:25:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; A measurement of the W+W- boson pair production cross section in proton-proton collisions at s=13 TeV is presented. The data used in this study are collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 35.9 fb-1. The W+W- candidate events are selected by requiring...
Measurement of the top quark Yukawa coupling from tt¯ kinematic distributions i...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.Made available in DSpace on 2022-05-01T01:54:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-30; A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at s=13 TeV, corresponding to an integrated luminosity of 137 fb-1, recorded with the CMS detector. The coupling strength with respect to the standard model value, Yt, is determined from kin...