25 documents found, page 1 of 3
Observation of Higgs Boson Decay to Bottom Quarks
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 2022-04-28T19:11:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-09-17; The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are searched for in final states including 0, 1, or 2 charged lepto...
Advancing LHC probes of dark matter from the inert two-Higgs-doublet model with...
Belyaev, A.; Moretti, S. [UNESP]; Fernandez Perez Tomei, T. R.; Novaes, S. F.; Mercadante, P. G.; Moon, C. S.; Panizzi, L.; Rojas, F.; Thomas, M.Made available in DSpace on 2022-04-28T19:26:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01; The inert two-Higgs-doublet Model (i2HDM) is a well-motivated minimal consistent dark matter (DM) model, but it is rather challenging to test at the LHC in the parameter space allowed by relic density and DM direct detection constraints. This is especially true when considering the latest XENON 1T data ...
Anomalous quartic gauge boson couplings at hadron colliders
Éboli, J. P. [UNESP]; Gonzalez-Garcíia, M. C.; Lietti, S. M. [UNESP]; Novaes, S. F.Made available in DSpace on 2022-04-28T19:55:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-01-01; We analyze the potential of the Fermilab Tevatron and CERN Large Hadron Collider (LHC) to study anomalous quartic vector-boson interactions γγZZ and γγW+W-. Working in the framework of SU(2)L ⊗U(1)Y chiral Lagrangians, we study the production of photon pairs accompanied by l+l-, l±v, and jet pairs to im...
Heavy-lepton production via vector-boson fusion
Boli, O. J.P. [UNESP]; Marques, G. C.; Novaes, S. F.; Natale, A. A.Made available in DSpace on 2022-04-28T19:56:38Z (GMT). No. of bitstreams: 0 Previous issue date: 1986-01-01; We investigate the production of a possible pair of sequential heavy charged leptons (ML 200 800 GeV) at pp multi-TeV colliders via vector-boson fusion. The results are compared with the usual Drell-Yan mechanism and with the two-photon process. For very heavy leptons the fusion of Ws provides a contrib...
Looking for spin-(3/2 leptons in hadronic collisions
Spehler, D.; Aboli, O. J.P. [UNESP]; Marques, G. C.; Novaes, S. F.; Natale, A. A.Made available in DSpace on 2022-04-28T20:04:24Z (GMT). No. of bitstreams: 0 Previous issue date: 1987-01-01; We compute cross sections for the production of spin-(3/2 leptons in proton-proton collisions, under general assumptions on the coupling of these fermions with ordinary particles. If the compositeness scale is 15 TeV and for masses in the range 50500 GeV these particles will be within the reach of Fermi...
Supersymmetric-charged-Higgs-boson production at the Superconducting Super Coll...
Eboli, O. J.P.; Marques, G. C.; Novaes, S. F.; Natale, A. A.; Pulido, J. M.R.Made available in DSpace on 2022-04-28T18:55:36Z (GMT). No. of bitstreams: 0 Previous issue date: 1988-01-01; We analyze the production of supersymmetric charged Higgs bosons via vector-boson fusion at Superconducting Super Collider energies. This process leads to a measurable cross section only for a very limited range of masses of &300 400 GeV &>40 GeV. © 1988 The American Physical Society.; Center for Theore...
Twin Higgs-boson production
Éboli, O. J.P.; Marques, G. C.; Novaes, S. F.; Natale, A. A.Made available in DSpace on 2022-04-29T08:41:49Z (GMT). No. of bitstreams: 0 Previous issue date: 1987-10-22; We investigate the production of a standard Higgs boson pair in proton-proton collisions at the SSC energy. This process alloys us to study the trilinear Higgs coupling. © 1987.; Center for Theoretical Physics Laboratory for Nuclear Science Department of Physics, Cambridge, MA 02139; Instituto de Física...
Vacuum stability and the dynamics of chiral symmetry breaking
Montero, J. C.; Natale, A. A.; Pleitez, V.; Novaes, S. F.Made available in DSpace on 2022-04-29T08:42:49Z (GMT). No. of bitstreams: 0 Previous issue date: 1985-10-24; An effective potential for composite operators is computed at stationary points with different ansatze for the fermion self-energy in abelian and non-abelian theories. The vacuum shows a chiral asymmetric phase with larger stability for a specific ansatz: the one which is harder at high momenta. © 1985....
Investigation into the event-activity dependence of gamma(nS) relative producti...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.; Fruehwirth, R.Made available in DSpace on 2021-06-25T11:24:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-02; 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...
Search for physics beyond the standard model in events with jets and two same-s...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.; Fruehwirth, R.Made available in DSpace on 2020-12-10T17:41:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-08-18; 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...