5 documents found, page 1 of 1
Measurement of the tt̄ production cross section in pp̄ collisions using dilepto...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:20:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-09-28; We present a measurement of the tt̄ pair production cross section in pp̄ collisions at s=1.96TeV utilizing approximately 425pb-1 of data collected with the D0 detector. We consider decay channels containing two high pT charged leptons (either e or μ) from leptonic decays of both top-daughter W bosons. T...
Properties of L=1 B1 and B2* mesons
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:32:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-23; This Letter presents the first strong evidence for the resolution of the excited B mesons B1 and B2* as two separate states in fully reconstructed decays to B+(*)Ï€-. The mass of B1 is measured to be 5720.6Â.±2.4Â.±1.4Â.€‰Â.€ ‰MeV/c2 and the mass difference ÎM between B2* and B1 is 26.2Â.±3.1Â.±0. 9Â.€‰...
Measurement of the pp̄→tt̄+X production cross section at s=1.96TeV in the fully...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:33:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-19; A measurement of the top quark pair production cross section in proton antiproton collisions at an interaction energy of s=1.96TeV is presented. This analysis uses 405±25pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. Fully hadronic tt̄ decays with final states of six or m...
Measurement of the tt̄ production cross section in pp̄ collisions at s=1.96TeV ...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.Made available in DSpace on 2022-04-28T20:34:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-11-27; We present a measurement of the top quark pair production cross section in pp̄ collisions at s=1.96TeV utilizing 425pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. We consider the final state of the top quark pair containing one high-pT electron or muon and at least four j...
Search for the rare decay Bs0→μ+μ- with the D0 detector
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Agelou, M.; Agram, J. L.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.Made available in DSpace on 2022-04-29T05:36:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-08-01; We present a search for the flavor-changing neutral current decay Bs0→ μ+μ- using about 0.45fb-1 of data collected in pp̄ collisions at √s=1.96TeV with the D0 detector at the Fermilab Tevatron Collider. We find an upper limit on the branching ratio of this decay normalized to Bs0→J/ψ of B(Bs0→ μ+μ -)B(B...