Study of semileptonic decays of B mesons to charmed baryons

Study of semileptonic decays of B mesons to charmed baryons

Using data collected by the CLEO II detector at a center-of-mass energy on or near the Y(4S) resonance, we have determined the 90% confidence level upper limit β(B̄→Λ+ce -X)/β(B̄→(Λ+c or Λ̄-c)X)<0.05 for electrons with momentum above 0.6 GeV/c. We have also obtained the limit β(B-→Λ+cp̄e -ν̄e...

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Podrobná bibliografie
Hlavní autoři: Bonvicini, G, Cinabro, D, Greene, R, Perera, L, Zhou, G, Chadha, M, Chan, S, Eigen, G, Miller, J, O'Grady, C, Schmidtler, M, Urheim, J, Weinstein, A, Wurthwein, F, Bliss, D, Masek, G, Paar, H, Prell, S, Sharma, V, Asner, D, Gronberg, J, Hill, T, Lange, D, Morrison, R, Nelson, H
Médium: Journal article
Jazyk:English
Vydáno: 1998
Popis
Shrnutí:Using data collected by the CLEO II detector at a center-of-mass energy on or near the Y(4S) resonance, we have determined the 90% confidence level upper limit β(B̄→Λ+ce -X)/β(B̄→(Λ+c or Λ̄-c)X)<0.05 for electrons with momentum above 0.6 GeV/c. We have also obtained the limit β(B-→Λ+cp̄e -ν̄e)/β(B̄ →Λ+cp̄X)<0.04 at the 90% confidence level and measured the ratio β(B̄→Λ+cp̄X)/β(B̄→(Λ+c or Λ-c)X) =0.57± 0.05±0.05.

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