Measurement of the mass difference m(B(0))-m(B(+))

Journal article

Using 230×106 BB̄ events recorded with the BABAR detector at the e+e- storage rings PEP-II, we reconstruct approximately 4100 B0→J/ψK+π- and 9930 B+→J/ψK+ decays with J/ψ→μ+μ- and e+e-. From the measured B-momentum distributions in the e+e- rest frame, we determine the mass difference m(B0)-m(B+)=(+0. 33±0.05±0.03)MeV/c2. © 2008 The American Physical Society.

Authors: Aubert, B; Bona, M; Karyotakis, Y; Lees, J; Poireau, V

• Publication status: Published
• Journal: Physical Review D
• Volume: 78
• Issue: 1
• Publication date: 2008-07-01
• DOI: 10.1103/PhysRevD.78.011103
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English