A Measurement of B0 Meson Properties Using Partially Reconstructed B0 to D*- Pi+ and B0 Tp D*- Lepton+ Nu-lepton Decays with the BABAR Detector
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2001 |
ISBN-10 | : OCLC:68459673 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book A Measurement of B0 Meson Properties Using Partially Reconstructed B0 to D*- Pi+ and B0 Tp D*- Lepton+ Nu-lepton Decays with the BABAR Detector written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The two B[sup 0] decay processes B[sup 0][yields] D*[sup -][pi][sup+] and B[sup 0][yields] D*[sup -][ell][sup+][nu][sub[ell]] have been studied by means of a partial reconstruction technique using a data sample collected with the BABAR detector at the PEP-II storage ring. To increase statistics, only the soft[pi][sup -] from the decay D*[sup -][yields][pi][sup -] D[sup 0] was used in association with either an oppositely-charged high-momentum pion or lepton. Events were then identified by exploiting the constraints from the simple kinematics of[Upsilon](4S) decays. A clear signature is obtained in each case. The position of the B[sup 0] decay point was obtained from the reconstructed[pi][sup+] ([ell][sup+])[pi][sup -] vertex. The position of the other[bar B][sup 0] in the event was also determined. Taking advantage of the boost given to the[Upsilon](4S) system by the asymmetric beam energies of PEP-II, the lifetime of the B[sup 0] meson has been measured from the separation distance between the two vertices along the beam direction.