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For Publisher's use MEASUREMENTS OF HEAVY MESON LIFETIMES WITH BELLE
 

Summary: For Publisher's use
MEASUREMENTS OF HEAVY MESON LIFETIMES WITH BELLE
H. TAJIMA
Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku Tokyo 113-033 Japan
E-mail: tajima@phys.s.u-tokyo.ac.jp
Charmed and beauty meson lifetimes have been measured using 2.75 fb-1 (D mesons) and 5.1 fb-1
(B mesons) of data collected with the Belle detector at KEKB. The results are (B
0
) = (1.50 0.05
0.07) ps, (B-) = (1.70 0.06+0.11
-0.10) ps, (D0) = (414.8 3.8 3.4) fs, (D+) = (1040+23
-22 18) fs
and (D+
s ) = (479+17
-16
+6
-8) fs, where the first error is statistical and the second error is systematic. The
lifetime ratios are measured to be (B-)/(B
0
) = 1.140.06+0.06

  

Source: Aihara, Hiroaki - Department of Physics, University of Tokyo

 

Collections: Physics