75 documents found, page 1 of 8
Search for large extra spatial dimensions in the dielectron and diphoton channe...
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 2022-04-28T20:49:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-02-02; Science and Technology Facilities Council; We report on a search for large extra spatial dimensions in the dielectron and diphoton channels using a data sample of 1.05fb-1 of pp̄ collisions at a center-of-mass energy of 1.96 TeV collected by the D0 detector at the Fermilab Tevatron Collider. The invaria...
Search for neutral higgs bosons at high tan β in the b(h/H/A)→bτ+τ- Channel
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 2022-04-28T20:49:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-02-02; Science and Technology Facilities Council; The first search in pp̄ collisions at s=1.96TeV for the production of neutral Higgs bosons in association with bottom quarks and decaying in two tau leptons is presented. The cross section for this process is enhanced in many extensions of the standard model, s...
Evidence for the decay Bs0→Ds(*)Ds(*) and a measurement of ΔΓsCP/Γs
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 2022-04-28T20:50:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-02; Science and Technology Facilities Council; We search for the semi-inclusive process Bs0→Ds(*)Ds(*) using 2.8fb-1 of pp̄ collisions at s=1.96TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6±8.4 signal events with a significance above background of 3.2 standard ...
Search for anomalous top-quark couplings with the D0 detector
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 2022-04-28T20:50:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-02; Science and Technology Facilities Council; Anomalous Wtb couplings modify the angular correlations of the top-quark decay products and change the single top-quark production cross section. We present limits on anomalous top-quark couplings by combining information from W boson helicity measurements in t...
Search for long-lived charged massive particles with the D0 detector
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 2022-04-28T20:51:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-04-22; Science and Technology Facilities Council; We search for long-lived charged massive particles using 1.1fb-1 of data collected by the D0 detector at the Fermilab Tevatron pp̄ Collider. Time-of-flight information is used to search for pair produced long-lived tau sleptons, gauginolike charginos, and Higgs...
Measurement of γ+b+X and γ+c+X production cross sections in pp̄ collisions at s...
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 2022-04-28T20:51:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-05-11; Science and Technology Facilities Council; First measurements of the differential cross sections d3σ/ (dpTγdyγdyjet) for the inclusive production of a photon in association with a heavy quark (b, c) jet are presented, covering photon transverse momenta 30<pTγ<150GeV, photon rapidities |yγ|<1.0, jet rapi...
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 resonant diphoton production with the D0 detector
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 2022-04-28T20:52:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-12; Science and Technology Facilities Council; We present a search for a narrow resonance in the inclusive diphoton final state using ∼2.7fb-1 of data collected with the D0 detector at the Fermilab Tevatron pp̄ Collider. We observe good agreement between the data and the background prediction, and set the f...
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 ...
Evidence of WW and WZ production with lepton+jets final states in pp̄ collision...
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 2022-04-28T20:53:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-04-21; Science and Technology Facilities Council; We present first evidence for WW+WZ production in lepton+jets final states at a hadron collider. The data correspond to 1.07fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron in pp̄ collisions at s=1.96TeV. The observed cross ...