New CKM related studies on b decays in the DELPHI experiment at LEP

Mitaroff, Winfried A.; DELPHI Collaboration

Report/Contribution to a conference proceedings

PUBDB-2016-03548

New CKM related studies on b decays in the DELPHI experiment at LEP

Mitaroff, W. A. (Corresponding author) ; DELPHI Collaboration (Collaboration Author)

2003

23rd International Conference on Physics in Collision, PIC 2003, Zeuthen, Germany, 26 Jun 2003 - 28 Jun 2003 396-398 (2003)

Report No.: PIC-2003-FRAP19; hep-ex/0309064

Abstract: The e-e+ collider LEP, running at sqrt{s} = m(Z0), has been a copious source of b-hadrons produced in decays Z0 -> b \b. We present recent studies using up to 4*10^6 hadronic Z0 decays acquired by the DELPHI detector between 1992 and 2000. They rely on efficient particle identification, precise track and vertex reconstruction and sophisticated data analysis algorithms. Presented are: a new measurement of the CKM matrix element |V_cb| in the semileptonic exclusive decays B0_d -> D*+ l- \nu_l: a new measurement of the B0_d - \B0_d oscillation frequency Delta(m_d): and searches by three methods for B0_s - \B0_s oscillations, yielding new lower limits on Delta(m_s).

Keyword(s): talk: Zeuthen 2003/06/26 ; electron positron: colliding beams ; electron positron: annihilation ; Z0: electroproduction ; Z0: hadronic decay ; bottom: pair production ; B0: semileptonic decay ; D*(2010): hadronic decay ; CKM matrix matrix ; B0 anti-B0: oscillation ; B0: mass difference ; B/s0 anti-B/s0: oscillation ; B/s0: semileptonic decay ; B/s0: mass difference ; DELPHI ; experimental results ; CERN LEP Stor ; Z0 --> 2bottom ; B0 --> D*(2010) lepton- antineutrino ; D*(2010) --> D0 pi+ ; B/s0 --> D/s+ lepton- antineutrino anything