4 documents found, page 1 of 1
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.€‰...
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...
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...
Precise study of the Z/γ* boson transverse momentum distribution in pp̄ collisi...
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.Made available in DSpace on 2022-04-28T22:25:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-03-21; National Science Foundation; Using 7.3fb-1 of pp̄ collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable φη*, which probes the same physical effects as the Z/γ* boson transverse momentum, but is less susceptible to the effects of experimental resolu...