Observation of {pi} - B meson charge-flavor correlations and measurement of time dependent B{sup 0} Bbar{sup 0} mixing in p{bar p} collisions

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We present evidence for charge correlations of {ital B} mesons with charged particles produced in {ital p{anti p}} Collisions at 1.8 TeV. Such correlations are expected to arise from pious produced in the fragmentation chain and from {ital B}{sup **} decays. We measure the efficiency and purity of this flavor tagging method for both charged and neutral {ital B} mesons. We apply these correlations to {ital B} mesons reconstructed in 110 pb{sup -1} of data collected with the CDF detector at the Fermilab Tevatron Collider. {ital B} mesons are either partially reconstructed, using the semileptonic decays {ital B}{sup 0} {yields} ... continued below

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25 p.

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CDF Collaboration September 1, 1996.

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We present evidence for charge correlations of {ital B} mesons with charged particles produced in {ital p{anti p}} Collisions at 1.8 TeV. Such correlations are expected to arise from pious produced in the fragmentation chain and from {ital B}{sup **} decays. We measure the efficiency and purity of this flavor tagging method for both charged and neutral {ital B} mesons. We apply these correlations to {ital B} mesons reconstructed in 110 pb{sup -1} of data collected with the CDF detector at the Fermilab Tevatron Collider. {ital B} mesons are either partially reconstructed, using the semileptonic decays {ital B}{sup 0} {yields} {ital l}{sup +}{ital D}{sup (*)-}{ital X} and {ital B}{sup +} {yields} {ital l}{sup +}{ital {anti D}X}, or fully reconstructed, using the decay modes {ital B}{sup 0} {yields} {ital J/{Psi}K{sup *0}} and {ital B}{sup +} {yields} {ital J/{Psi}K{sup +}}. Application of this new flavor tagging method to neutral {ital B} mesons yields a measurement of the frequency of the oscillation {ital B}{sup 0} {yields} {ital {anti B}}{sup 0}. We obtain {Delta}{ital m{sub d}} = 0.446 {+-} 0.057{sup +0.034}{sub -0.031}.

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25 p.

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INIS; OSTI as DE96050565

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  • 28. international conference on high-energy physics, Warsaw (Poland), 25-31 Jul 1996

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  • Other: DE96050565
  • Report No.: FNAL/C--96/175-E
  • Report No.: CONF-960765--34
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 435054
  • Archival Resource Key: ark:/67531/metadc685001

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  • September 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 10, 2016, 4:23 p.m.

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CDF Collaboration. Observation of {pi} - B meson charge-flavor correlations and measurement of time dependent B{sup 0} Bbar{sup 0} mixing in p{bar p} collisions, article, September 1, 1996; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc685001/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.