Observation of the Bc Meson at CDF

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We report on the observation of bottom-charm mesons via the decay mode B{sub c}{sup {+-}} {yields} J/{psi}l{sup {+-}}{nu} in 1.8 TeV p{anti p} collisions using the CDF detector at the Fermilab Tevatron. A fit of background and signal contributions to the J/{psi}l mass distribution yielded 20.4{sup +6.2}{sub -5.5} events from B{sub c} mesons. We measured the B{sub c}{sup +} mass to be 6.40{+-}0.39(stat.){+-}0.13(syst.)GeV/c and the B{sub c}{sup +}lifetime to be 0:46{sup +0.18}{sub -0.16}(stat.){+-} 0.03(syst.)ps. The measured production cross section times branching ratio for B{sub c}{sup +}{yields}J/{psi}l{sup +}{nu} relative to that for B{sup +}{yields}J/{psi}K{sup +} is 0.132{sup +0.041}{sub -0.037}(stat.){+-}0.031(syst.){sup +0.032}{sub -0.020}(lifetime).

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Papadimitriou, V. December 1, 1998.

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We report on the observation of bottom-charm mesons via the decay mode B{sub c}{sup {+-}} {yields} J/{psi}l{sup {+-}}{nu} in 1.8 TeV p{anti p} collisions using the CDF detector at the Fermilab Tevatron. A fit of background and signal contributions to the J/{psi}l mass distribution yielded 20.4{sup +6.2}{sub -5.5} events from B{sub c} mesons. We measured the B{sub c}{sup +} mass to be 6.40{+-}0.39(stat.){+-}0.13(syst.)GeV/c and the B{sub c}{sup +}lifetime to be 0:46{sup +0.18}{sub -0.16}(stat.){+-} 0.03(syst.)ps. The measured production cross section times branching ratio for B{sub c}{sup +}{yields}J/{psi}l{sup +}{nu} relative to that for B{sup +}{yields}J/{psi}K{sup +} is 0.132{sup +0.041}{sub -0.037}(stat.){+-}0.031(syst.){sup +0.032}{sub -0.020}(lifetime).

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222 Kilobytes

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  • International Conference on High-Energy Physics (ICHEP 98), Vancouver, British Columbia, Canada, July 23-30, 1998

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  • Other: DE00002523
  • Report No.: FERMILAB-Conf-98/371-E
  • Grant Number: NONE
  • Office of Scientific & Technical Information Report Number: 2523
  • Archival Resource Key: ark:/67531/metadc671039

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  • December 1, 1998

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  • June 29, 2015, 9:42 p.m.

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  • April 18, 2016, 3:25 p.m.

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Papadimitriou, V. Observation of the Bc Meson at CDF, article, December 1, 1998; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc671039/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.