b-Physics measurements at the Tevatron: m and Delta m

2005/06/22 by S. D’Auria, D'Auria, S.
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ex/0506049

openalex publication_date 2005/06/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present experimental results on b-hadron mass measurements and b-meson oscillations based on integrated luminosity of 250 to 450 pb-1 of proton-antiproton collisions at c.m. energy = 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 Bc to J/psi pi resulted in a peak of 18.9 +/- 5.4 candidates at a mass value of 6287.0 +/- 4.5 +/- 1.1 MeV/c2. A new limit has been set to the decay B_d,s to mu+ mu-. Both the CDF and D0 collaborations are in the position to put a limit on the frequency of the Bs oscillations. D0 reports Delta m_s > 5.0 ps-1.

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