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Measurement of the B00 oscillation frequency using l-D*+ pairs and lepton flavor tags

Publication ,  Journal Article
Affolder, T; Akimoto, H; Akopian, A; Albrow, MG; Amaral, P; Amendolia, SR; Amidei, D; Antos, J; Apollinari, G; Arisawa, T; Asakawa, T; Atac, M ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
1999

The oscillation frequency Δmd of B0B̄0 mixing is measured using the partially reconstructed semileptonic decay B̄0→l-ν̄D*+X. The data sample was collected with the CDF detector at the Fermilab Tevatron collider during 1992-1995 by triggering on the existence of two lepton candidates in an event, and corresponds to about 110 pb-1 of p̄p collisions at √s=1.8 TeV. We estimate the proper decay time of the B̄0meson from the measured decay length and reconstructed momentum of the l-D*+ system. The charge of the lepton in the final state identifies the flavor of the B̄0 meson at its decay. The second lepton in the event is used to infer the flavor of the B̄0 meson at production. We measure the oscillation frequency to be Δmd=0.516 ±0.099-0.035+0.029 ps-1, where the first uncertainty is statistical and the second is systematic. ©1999 The American Physical Society.

Duke Scholars

Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

Publication Date

1999

Volume

60

Issue

11

Start / End Page

1 / 12

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amendolia, S. R., … Zucchelli, S. (1999). Measurement of the B00 oscillation frequency using l-D*+ pairs and lepton flavor tags. Physical Review D - Particles, Fields, Gravitation and Cosmology, 60(11), 1–12.
Affolder, T., H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, S. R. Amendolia, D. Amidei, et al. “Measurement of the B00 oscillation frequency using l-D*+ pairs and lepton flavor tags.” Physical Review D - Particles, Fields, Gravitation and Cosmology 60, no. 11 (1999): 1–12.
Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amendolia SR, et al. Measurement of the B00 oscillation frequency using l-D*+ pairs and lepton flavor tags. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1999;60(11):1–12.
Affolder, T., et al. “Measurement of the B00 oscillation frequency using l-D*+ pairs and lepton flavor tags.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 60, no. 11, 1999, pp. 1–12.
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Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

Publication Date

1999

Volume

60

Issue

11

Start / End Page

1 / 12

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences