A Precise measurement of the B(d)0 meson lifetime using a new technique

Collaboration
Oct, 1996
25 pages
Published in:
  • Z.Phys.C 74 (1997) 19-32,
  • Z.Phys.C 75 (1997) 579 (erratum)
Report number:
  • CERN-PPE-96-139
Experiments:

Citations per year

1996200320102017202402468101214
Abstract: (Springer)
From data recorded by DELPHI between 1991 and 1994, which corresponds to 3.2 million hadronic Z0 decays, a measurement of the erlineBd0⩈erline {{⊼ B}_d^0} meson lifetime, based on the inclusive reconstruction of 3520 ± 150 semileptonic decays of the type erlineBd0ghtarrowDt+Xlerlinevl,⩈erline {{⊼ B}_d^0}⌝ghtarrow {⊼ D}^{⇒t +}{⊼ ⩼ X} ⫑l ⩈erline {v_{⫑l}}, has been performed. The result is: uerline(Bd0)=1.532pm0.041(stat.)pm0.040(syst.)ps.∢u ⩈erline {({⊼ B_d^0})}=1.532 pm 0.041(stat.) pm 0.040(syst.)ps.. The contribution to the systematic uncertainty which depends on external errors is ±0.015.
  • electron positron: colliding beams
  • electron positron: annihilation
  • Z0: electroproduction
  • Z0: hadronic decay
  • anti-B0: semileptonic decay
  • B0: lifetime
  • D*(2010): hadronic decay
  • DELPHI
  • experimental results
  • CERN LEP Stor