Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Fermilab Tevatron

Acosta D., Affolder T., Akimoto H., Albrow M., Ambrose D., Amidei D., ...Daha Fazla

PHYSICAL REVIEW D, cilt.69, sa.1, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 69 Sayı: 1
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1103/physrevd.69.012002
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • İstanbul Üniversitesi Adresli: Evet

Özet

We have measured the number of like-sign (LS) and opposite-sign (OS) lepton pairs arising from double semileptonic decays of b and (b) over bar hadrons, pair produced at the Fermilab Tevatron collider. The data samples were collected with the Collider Detector at Fermilab during the 1992-1995 collider run by triggering on the existence of mumu or emu candidates in an event. The observed ratio of LS to OS dileptons leads to a measurement of the average time-integrated mixing probability of all produced b-flavored hadrons which decay weakly, (chi) over bar =0.152+/-0.007 (stat)+/-0.011 (syst), that is significantly larger than the world average (chi) over bar =0.118+/-0.005.