Measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ ^-)X decays in p̄p collisions at √s=1.96TeV

Authors

T. Aaltonen, Helsingin Yliopisto
B. Álvarez González, Universidad de Cantabria
S. Amerio, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
D. Amidei, University of Michigan, Ann Arbor
A. Anastassov, Northwestern University
A. Annovi, INFN, Laboratori Nazionali Di Frascati
J. Antos, Univerzita Komenského v Bratislave
G. Apollinari, Fermi National Accelerator Laboratory
J. A. Appel, Fermi National Accelerator Laboratory
A. Apresyan, Purdue University
T. Arisawa, Waseda University
A. Artikov, Joint Institute for Nuclear Research, Dubna
J. Asaadi, Texas A&M University
W. Ashmanskas, Fermi National Accelerator Laboratory
B. Auerbach, Yale University
A. Aurisano, Texas A&M University
F. Azfar, University of Oxford
W. Badgett, Fermi National Accelerator Laboratory
A. Barbaro-Galtieri, Lawrence Berkeley National Laboratory
V. E. Barnes, Purdue University
B. A. Barnett, Johns Hopkins University
P. Barria, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Bartos, Univerzita Komenského v Bratislave
M. Bauce, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
G. Bauer, Massachusetts Institute of Technology
F. Bedeschi, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
D. Beecher, University College London
S. Behari, Johns Hopkins University

Document Type

Article

Publication Date

12-29-2011

Abstract

We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ -)X decays in 1.3fb -1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0. 027(syst)ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions. © 2011 American Physical Society.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J., Apresyan, A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Barria, P., Bartos, P., Bauce, M., Bauer, G., Bedeschi, F., Beecher, D., & Behari, S. (2011). Measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ ^-)X decays in p̄p collisions at √s=1.96TeV. Physical Review Letters, 107 (27) https://doi.org/10.1103/PhysRevLett.107.272001