b-physics measurements at the Tevatron: m and delta m
We present experimental results on b-hadron mass measurements and b-meson oscillations based on integrated luminosity of 250 to 450 pb{sup -1} of p{bar p} collisions at {radical}s = 1.98 TeV by the CDF and D0 collaborations at the TeVatron. The masses of b-hadrons have been measured precisely by the CDF collaboration in decays containing a J/{psi}. A blind search of the decay mode B{sub c} {yields} J/{psi}{pi}{sup +} resulted in a peak of 18.9 {+-} 5.4 candidates at a mass value of 6287.0 {+-} 4.5 {+-} 1.1 MeV/c{sup 2}. A new limit has been set to the decay B{sub d,s} {yields} {mu}{sup +}{mu}{sup -}. Both the CDF and D0 collaborations are in the position to put a limit on the frequency of the B{sub s} oscillations. D0 reports {Delta}m{sub s} > 5.0 ps{sup -1}.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 15017087
- Report Number(s):
- FERMILAB-CONF-05-252-E; arXiv eprint number hep-ex/0506049; TRN: US0602517
- Resource Relation:
- Conference: Presented at 40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Aosta Valley,Italy, 5-12 Mar 2005
- Country of Publication:
- United States
- Language:
- English
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