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Measurement of the B{sub d}{sup 0}-{bar B}{sub d}{sup 0} flavor oscillation frequency and study of same side flavor tagging of B mesons in p{bar p} collisions

Journal Article · · Physical Review, D
OSTI ID:328534
; ; ; ; ;  [1]; ; ; ; ;  [2]; ; ; ; ;  [3]; ; ;  [4]; more »; ; ; ; ; ;  [5]; ; ; ; ; ;  [6]; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [7]; ; ; ;  [8]; ; ; ; ; ; ;  [9]; ; ;  [10]; ; ; ; ; ; ; « less
  1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
  3. Brandeis University, Waltham, Massachusetts 02254 (United States)
  4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  5. University of Chicago, Chicago, Illinois 60637 (United States)
  6. Duke University, Durham, North Carolina 27708 (United States)
  7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  8. University of Florida, Gainesville, Florida 32611 (United States)
  9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
  10. University of Geneva, CH-1211 Geneva 4 (Switzerland)
+ Show Author Affiliations
B{sub d}{sup 0}-{bar B}{sub d}{sup 0} oscillations are observed in {open_quotes}self-tagged{close_quotes} samples of partially reconstructed B mesons decaying into a lepton and a charmed meson collected in p{bar p} collisions at {radical} (s) =1.8thinspTeV. A flavor tagging technique is employed which relies upon the correlation between the flavor of B mesons and the charge of a nearby particle. We measure the flavor oscillation frequency to be {Delta}m{sub d}=0.471{sub {minus}0.068}{sup +0.078}{plus_minus}0.034thinspps{sup {minus}1}. The tagging method is also demonstrated in exclusive samples of B{sub u}{sup +}{r_arrow}J/{psi}K{sup +} and B{sub d}{sup 0}{r_arrow}J/{psi}K{sup {asterisk}0}(892), where similar flavor-charge correlations are observed. The tagging characteristics of the various samples are compared with each other, and with Monte Carlo simulations. {copyright} {ital 1998} {ital The American Physical Society}
OSTI ID:
328534
Journal Information:
Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 59; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English

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Related Subjects

66 PHYSICS
B MESONS
B NEUTRAL MESONS
B PLUS MESONS
CHARMONIUM
FLAVOR MODEL
KAONS NEUTRAL
KAONS PLUS
MONTE CARLO METHOD
PARTICLE DECAY
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
STANDARD MODEL