77 documents found, page 1 of 8
Measurement of the Zγ→νν̄γ Production Cross Section and Limits on Anomalous ZZγ...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:51:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-05-18; We present the first observation of the Zγ→νν̄γ process at the Fermilab Tevatron at 5.1standard deviations significance, based on 3.6fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron pp̄ Collider at s=1.96TeV. The measured Zγ production cross section multiplied by the...
Search for the standard model Higgs boson in tau final states
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:52:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-25; Science and Technology Facilities Council; We present a search for the standard model Higgs boson using hadronically decaying tau leptons, in 1fb-1 of data collected with the D0 detector at the Fermilab Tevatron pp̄ collider. We select two final states: τ± plus missing transverse energy and b jets, and ...
Search for next-to-minimal supersymmetric higgs bosons in the h→aa→μμμμ, μμττ c...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:54:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-04; We report on a first search for production of the lightest neutral CP-even Higgs boson (h) in the next-to-minimal supersymmetric standard model, where h decays to a pair of neutral pseudoscalar Higgs bosons (a), using 4.2fb-1 of data recorded with the D0 detector at Fermilab. The a bosons are required t...
Search for dark photons from supersymmetric hidden valleys
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:54:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-17; We search for a new light gauge boson, a dark photon, with the D0 experiment. In the model we consider, supersymmetric partners are pair produced and cascade to the lightest neutralinos that can decay into the hidden sector state plus either a photon or a dark photon. The dark photon decays through its ...
Observation of single top-quark production
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:55:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-24; We report observation of the electroweak production of single top quarks in pp̄ collisions at s=1.96TeV based on 2.3fb-1 of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originat...
Measurement of trilinear gauge boson couplings from WW+WZ→lνjj events in pp̄ co...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:55:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-23; Science and Technology Facilities Council; We present a direct measurement of trilinear gauge boson couplings at γWW and ZWW vertices in WW and WZ events produced in pp̄ collisions at s=1.96TeV. We consider events with one electron or muon, missing transverse energy, and at least two jets. The data were...
Search for charged Higgs bosons in decays of top quarks
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:56:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-30; Science and Technology Facilities Council; We present a search for charged Higgs bosons in decays of top quarks, in the mass range 80<mH±<155GeV, assuming the subsequent decay H+→τ+ντ (and its charge conjugate). Using 0.9fb-1 of lepton+jets data collected with the D0 detector at the Fermilab Tevatron pp...
Measurement of the W boson mass
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:56:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-10-01; Science and Technology Facilities Council; We present a measurement of the W boson mass in W→eν decays using 1fb-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample of 499830 W→eν candidate events, we measure MW=80.401±0.043GeV. This is the most precis...
Measurement of the WW production cross section with dilepton final states in pp...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:57:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-11-02; We provide the most precise measurement of the WW production cross section in pp̄ collisions to date at a center of mass energy of 1.96 TeV, and set limits on the associated trilinear gauge couplings. The WW→ℓνℓ ′ν (ℓ, ℓ′=e, μ) decay channels are analyzed in 1fb-1 of data collected by the D0 detector at...
Measurement of Dijet Angular Distributions at s=1.96TeV and Searches for Quark ...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:57:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-11-05; Science and Technology Facilities Council; We present the first measurement of dijet angular distributions in pp̄ collisions at s=1.96TeV at the Fermilab Tevatron Collider. The measurement is based on a dataset corresponding to an integrated luminosity of 0.7fb-1 collected with the D0 detector. Dijet an...